Bussmann. TRANSPORTATION PRODUCTS Solutions for the Transportation Industry. Circuit Protection Power Distribution Wiring Accessories

Transcription

1 Bussmann TRANSPORTATION PRODUCTS Solutions for the Transportation Industry Circuit Protection Power Distribution Wiring Accessories

2 Contents Page Custom Solutions for Power Distribution 1 SERIES 31000/32000 Vehicle Electrical Centers 2-3 Vehicle Electrical Center Connectors 4 Vehicle Electrical Center Accessories 5 SERIES RTMR Rear Terminal Mini Fuse & Relay Panels 6-7 SERIES PRM/PFM Power Relay Module/Power Fuse Module 8-9 SERIES RTA Rear Terminal ATC Fuse Block 10 SERIES ATC Blade-Type Fuse Panels 11 HMG Automotive Bolt-In Fuseholder for the AMG Fuse 12 FMG Automotive Bolt-In Fuseholder for the AMG Fuse 13 Inline Fuseholders 14 SERIES Battery Disconnect Switch 15 Stud Type Junction Blocks 16 Stud Type Junction Blocks (Non-Feed-Thru) 17 Basic Overcurrent Technology MINI Blade Fuses 20 SERIES 21X MINI Circuit Breakers 21 ATC Blade Fuses 22 SERIES 22X ATC Circuit Breakers 23 SERIES 227 ATC Circuit Breakers (Low Profile) 24 MAXI Blade Fuses 25 SERIES 19X MAXI Circuit Breakers 26 SERIES 3200/32013 Insertion/Extraction Tool 27 SERIES 174 FLAT-PAK Manual Reset Circuit Breakers SERIES 12X SHORTSTOP Auto, Manual & Modified Reset Circuit Breakers 30 SERIES 25X MID-RANGE Auto, Manual Reset, & Manual Reset w/ Push-to-Trip Circuit Breakers 31 SERIES 18X HI-AMP Auto, Manual Reset & Switchable Circuit Breakers 32 SERIES 187 MRCB Switchable Circuit Breakers 33 AMI SERIES Bolt In Automotive Fuses 34 AMG SERIES Bolt In Automotive Fuses 35 NOTES 36-37

3 Custom Solutions For Power Distribution Cooper Bussmann plays a key role in developing custom solutions for vehicle power distribution applications. Once a product need is identified, an innovative team of design engineers works closely with the customer to discuss their needs. This enables our team to design and develop custom solutions tailored to meet specific customer requirements. Many custom solutions include developing linkage systems to join two or more of our products together. This allows the customer one-stop shopping to create their vehicle electrical system. Other examples include bussing/jumpering, color-coding, and changing thread sizes. If you are in need of a custom solution, please contact your Bussmann sales representative for assistance. 1

4 Bussmann VEHICLE ELECTRICAL CENTERS SERIES 31000/32000 VEHICLE ELECTRICAL CENTERS Cooper Bussmann s Single Vehicle Electrical Center (VEC) and Dual Vehicle Electrical Center (DVEC) are widely used Transportation Industry power distribution modules. The VEC & DVEC use patented programmable 3D matrix technologies that can be easily modified to accommodate changes to an electrical system. These can be customized for each specific electrical system, but require no tooling for implementation. The VEC & DVEC accept automotive components including fuses, relays, circuit breakers, diodes, and other devices that have 2.8mm wide terminals on 8.1mm centerline spacing. (See page 5 for additional available components.) The compact size of the VEC (about 4 x4 ) and larger size of the DVEC (approximately 8 x4 ) provide for high component density. VEC s provide either 8.0mm bladed inputs or M8/M6 stud inputs. The VEC can accommodate up to 2 input connectors - 4 bladed inputs or 2 studs - and 4 output connectors. The DVEC can accommodate up to twice this amount. (Some designs may limit the number of connectors available for use.) Input Terminal Rating: 8.0mm blade terminals (60A max per terminal); M8/M6 input studs (100A max per terminal). 200A max total for VEC, 400A max total for DVEC. Output Terminal Rating: 2.8mm blade terminals (30A max per terminal). Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Thermoplastic housing and connectors; Tin-plated copper internal grid. Termination: Delphi Packard Metri-Pack 280 Series terminals (sealed/unsealed & tanged/tangless) or AMP terminals.* Delphi Packard 280 Series cavity plugs are installed where wires are not used.* Accepts #10-22 AWG wire sizes. Mounting Torque Rating: 24in-lb (2.7Nm) max. Mounting Orientation: Unit cannot be installed upsidedown. Consult factory for proper mounting orientations. Ingress Protection Rating: IP55. OPTIONS Cover: Vented (VEC), Solid with gasket (VEC/DVEC), Solid without gasket (DVEC), or none provided. Cover Label: Inside cover, outside cover (VEC only), or none provided. Input Style: 8.0mm blade terminals or studs (M8/M6). Mounting: External feet with mounting holes (VEC/DVEC) or internal mounting holes (VEC only). Components: Fuse, breaker, relay, etc. installation to be specified by customer. Severe Service: Added environmental protection available. Consult factory. Fuse/breaker Extraction Tool: See page 27. Each design is customer specific. Consult your sales rep today for your application. APPLICATIONS The VEC/DVEC is ideal for distributed main power as well as auxiliary add-on applications. Current VEC/DVEC applications include Class 3-8 trucks, buses, chassis and RV, Con-Ag equipment, marine specialty vehicles, and automotive power distribution systems. BENEFITS The customizable designs of the VEC/DVEC enable them to incorporate many different devices and multiple design variations. Splices in the harness can also be eliminated by internally programming them into the grid matrix. The inputs (connector or stud) and outputs (connector) of the VEC/DVEC are color-coded and keyed, and provide quick installation. This makes the module easy to service. The largest benefit of these modules are the reduced lead times and zero tooling cost. Transparent cover for illustration purposes only. 2 *Electrical terminals, cable seals & cavity plugs are NOT supplied by Cooper Bussmann.

5 SERIES 31000/32000 VEHICLE ELECTRICAL CENTERS DIMENSIONS SERIES VEC (Dims. shown are for reference only. Consult factory for latest prints) I/O #6 INPUT/OUTPUT CONNECTOR #1 I/O #5 I/O #2 CONNECTOR LOCK OPTIONAL COVER (SPLASHPROOF & VENTED VERSIONS) I/O #4 I/O #3 SPLASHPROOF ASSEMBLY 69.64" [2.74] REF. 1.90" [.07] REF " [.89] REF " [4.29] REF " [.60] REF " [5.77] REF " [4.20] REF. BUILT IN DRAINAGE 106.6" [4.20] REF. DIMENSIONS SERIES DVEC (Dims. shown are for reference only. Consult factory for latest prints) 73.00" [2.87] 6.56[.26] OPTIONAL EXTERNAL MOUNTING FEET (CONSULT FACTORY) 73.00" [2.87] 4X #10 INTERNAL MOUNTING HOLES MOUNTING TORQUE RECOMMENDATIONS Bussmann VEHICLE ELECTRICAL CENTERS ø6.5" (0.26) 160.8" (6.3) 146.5" (5.8) 111.4" (4.39) I/O #4 I/O #3 Optional Cover I/O #5 I/O # " (7.78) I/O #6 I/O #7 I/O #1 I/O # " (9.0) I/O #8 I/O #11 Optional Stud Cover I/O #9 I/O # " (4.2) ø6.5" (0.26) Mounting Holes TYP " (3.3) (excluding text height on cover) 49.4" (1.95) Shown Without Cover or Components Cooper Bussmann Transportation Products Phone: Website: 3

6 Bussmann VEHICLE ELECTRICAL CENTER CONNECTORS VEHICLE ELECTRICAL CENTER CONNECTORS Seal Male Input Connector xx Female Terminal* Delphi Packard 800 Metri-Pack series shown Cable seal Delphi Packard # r shown Terminal position assurance TPX 46.2 (1.82) 30.3 (1.19) CP Shown Assembled In-Place Male Input Connector Assembly (Dims.shown are for reference only. Consult factory for latest prints) CP Shown Prior To Engagement VEC Female Input Connector (Shown For Reference Only) 26.8 (1.06) Connector Polarized (Consult Factory For Details) MALE INPUT CONNECTOR X X Sealed / Non-Sealed Configuration 1 = Non-Sealed Version 2 = Sealed Version Color of Part A = Black B = Gray TERMINAL POSITION ASSURANCE TPX Sealed / Non-Sealed Configuration 1 = Non-Sealed Version 2 = Sealed Version CONNECTOR POSITION ASSURANCE CP (Ship in Bulk) Note: Terminals and Terminal Seal Components are not provided with connectors. Available from Delphi Packard. Contact factory for part list and terminal removal tool. Sealed connector option includes outer body seal. Terminal position assurance TPX Cable Seal Delphi Packard 280 Metri-Pack series shown Female Terminal* Delphi Packard 280 Metri-Pack series shown Male Output Connector xxx Seal CP Shown Assembled In-Place VEC Female Output Connector (Shown For Reference Only) CP Shown Prior To Engagement Male Output Connector Assembly MALE OUTPUT CONNECTOR X X X Sealed / Non-Sealed Configuration 1 = Non-Sealed Version 2 = Sealed Version Connector Cavity Configuration 1 = Tang-less Female Connector (Delphi 280) 2 = with Tang Female Connector (Delphi 280) 3 = AMP P = all cavities plugged Color of Part A = Black E = Yellow B = Gray F = Red C = Green G = Orange D = Blue H = Brown J = Neutral (only available for -JP2 option) 30.8 (1.21) H B G C F D 39.9 (1.57) Connector Polarizer (Consult Factory for Details) 24.4 (0.96) 26.3 (1.04) 17.9 (0.71) TERMINAL POSITION ASSURANCE TPX Sealed / Non-Sealed Configuration 1 = Non-Sealed Version 2 = Sealed Version CONNECTOR POSITION ASSURANCE CP (Ship in Bulk) Note: Terminals and Terminal Seal Components are not provided with connectors. Available from Delphi Packard. Contact factory for part list and terminal removal tool. Sealed connector option includes outer body seal. (Dims.shown are for reference only. Consult factory for latest prints) 4 Cooper Bussmann Transportation Products Phone: Website:

7 ELECTRICAL COMPONENTS Series 229 Diode, Resistor, and Transorb (Dims. shown are for reference only. Consult factory for latest prints) Ratings: Consult Factory for Available Ratings and part numbers Materials: Grey 94V-0 thermoplastic housing with metal cover. Termination Type: Compatible with 280 Type fuse blocks using 8.1mm centerline. Diode Key Feature: Standard key denotes installation direction. Extended key available for error-proof installation in VEC. DIODE MARKING SHOWN OPTIONAL "WING" FOR ADDITIONAL DIODE KEYING 9.2 [0.36] 7.6 [0.30] 2.8 [ 0.11] 12.2 [0.48].32 [8.13] Series Transorb Series Resistor Series Diode 23.0 [0.91] 8.9 [0.35] 27.3 [1.07] 2.29[0.090] STANDARD DIODE KEY 6.4 [0.25] 0.8 [0.03] 3.8 [0.15] Bussmann VEC ACCESSORIES Relays (Only Available for VEC, DVEC, or RTMR Applications.) Types: 5-pin mini-relay, 12 VDC & 24 VDC 5-pin micro-relay, 12 VDC & 24 VDC 4-pin mini-micro relay, 12 VDC Consult Factory for Available Amperage Ratings Termination Type: Compatible with 280 Type fuse blocks using 8.1mm centerline. Sealed versions of some relays also available. VEC ACCESSORIES Series (Terminal Seals) & Series (Cavity Plugs) Used in conjunction with the VEC input connector (Series 32004), terminal seals provide a sealed fit between the wire terminals and connector. Cavity plugs can be used to seal unused terminal positions. Series (Input Connector Cap) & Series (Output Connector Cap) Connector caps can be assembled to the mating VEC harness connectors (Series & 32006) when not in use. DVEC Cover Tether Tether available for use with Series DVEC cover. Consult factory. Series (for use with Series DVEC) External bus bar can be used with the Dual VEC to bus together studded power inputs. Cooper Bussmann Transportation Products Phone: Website: 5

8 Bussmann MINI-TERMINAL POWER DISTRIBUTION MODULE SERIES RTMR Rear Terminal Mini Fuse & Relay Power Distribution Module The Rear Terminal Mini Fuse and Relay panel (RTMR) provides efficient power distribution in a rugged compact form for applications in marine, construction, agriculture, heavy trucking, specialty vehicles, etc. This innovative product offers a weather tight enclosure (IP66/67) for various MINI (2.8mm) blade components when cover, cable seals, and cavity plugs are installed. It is available with various degrees of internal electrical bussing. Additionally, custom labels and multiple hardware configurations are available to solve any application need. Input Terminal Rating: M6 input studs on bussed/partially bussed inputs: 80A max input on bussed fuse side, 80A max input on bussed relay side. Output Terminal Rating: 2.8mm blade terminals (30A max per terminal) Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black thermoplastic housing; Tin-plated copper internal bussing; Bright nickel-plated brass studs (on bussed versions). Termination: Delphi Packard Metri-Pack 280 Series terminals (sealed/tangless) or AMP terminals.* Delphi Packard 280 Series cavity plugs are installed where wires are not used.* Accepts #12-22 AWG wire sizes. IP66/67 Rated Torque Rating: 75in-lb (8.5Nm) max. Mounting Torque Rating: #10-32 or M5 threaded inserts; 24in-lb (2.7Nm) max torque. Ingress Protection Rating: IP66-IEC (Valid when properly installed with cover, sealed terminals, and cavity plugs.) IP67 (Same requirements as IP66, but also needs a periodic months - coating of silicone lubricant applied to green base seal.) OPTIONS End Caps: Protective silicone end caps available for studded versions. Mounting: Mounting brackets available for surface-mounting RTMR. (See page 7.) Labels: Consult factory for custom label options. Replacement Accessories: Consult factory for available service parts. *Electrical terminals, cable seals & cavity plugs are NOT supplied by Cooper Bussmann. 6 Cooper Bussmann Transportation Products Phone: Website:

9 SERIES RTMR DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) 90.6 [3.6] [4.0] [4.4] 86.0 [3.4] 62.8 [2.5] 75.0 [3.0] NON-BUSSED VERSION SHOWN HERE ( ) STUDS INSTALLED ONLY ON BUSSED SIDES. ( SHOWN HERE) RTMR OPTIONS THREADED INSERT 52.7 [2.1] RELAY/CB COVER 33.5 [1.3] FUSE COVER RELAY SIDE FUSE/ CB SIDE BOTTOM VIEW OF RELAY SIDE FUSE/ CB SIDE FUSE/ CB SIDE RELAY SIDE BOTTOM VIEW OF & -3 Bussmann MINI-TERMINAL POWER DISTRIBUTION MODULE RTMR (STUD) End cap/cover RTMR Mounting Bracket TOP VIEW OF , -5 & PART NUMBERING SYSTEM Series Mounting 1 #10-32 threaded insert 2 M5x0.8 threaded insert Base Mounting Brackets B Terminal Cavity 1 Fuse / C.B. Base Blank Standard 20 Fuse Positions Delphi 280 (10 on each side) A AMP series 2 Micro Relay Base 5 Micro Relays with 10 Fuses / C.B. 3 Mini Relay Base 3 Mini (or Micro) Relays with 10 Fuses / C.B. 4 Non Bussed Version 3 Mini or 5 Micro Relays and 10 Fuses/C.B. 5 Partially Bussed Version 3 Unbussed Mini or 5 Unbussed Micro Relays and 10 Bussed Fuses/C.B. 6 Partially Bussed Version 3 Bussed Mini or 5 Bussed Micro Relays and 10 Unbussed Fuses/C.B. Material O Plated steel P Stainless steel Hardware 0 No nuts 1 Nuts (bulk) 2 Nuts (assembled) 3 No nuts, end caps ( bulk) 4 No nuts, end caps (assembled) 5 Nuts and end caps (in bulk) 6 Nuts and end caps (assembled) RTMR Stud End Cap B Cover 0 No cover 1 Fuse cover 2 Relay / circuit breaker (C.B.) cover Marking Options Blank Std. marking (Consult factory for special options.) Cooper Bussmann Transportation Products Phone: Website: 7

10 Bussmann POWER RELAY POWER DISTRIBUTION MODULE SERIES PRM/PFM Power Relay Module Power Distribution Module & Fuse Block Cooper Bussmann offers a sealed Power Relay Module (PRM) along with an accompanying Power Fuse Module (PFM). These compact power distribution modules are designed for high current applications, and are suitable for placement in extreme moisture and high vibration environments. The PRM contains a 70A relay and two female fuse positions. One of these fuses protects the relay and the other is a single-circuit inline fuse. The PFM contains only two fuses - each a separate circuit. A silicone seal and removable cover offer a weather-tight enclosure for the fuse positions. PRMs/PFMs also feature rugged M8 power input studs. Multiple units may be connected together via a custom buss bar, or can be bussed to any of Cooper Bussmann s PDMs (i.e /32000 Series VEC/DVEC, Series RTMR, etc.) PRM Rating: 70A, 12VDC steady-state relay; 24VDC relay also available. Relay protection fuse: up to 60A; Nonswitched inline fuse: up to 60A. PFM Rating: Each inline fuse rated up to 60A. Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Materials: UL-Rated 94V-0 thermoplastic (excluding cover;) Silicone seal; Tin-plated copper terminals; Plated steel studs. Input Termination: M8 threaded stud. PRM Switching/Trigger Signal: Delphi Packard Metri-Pack 150 Series; AMPSEAL 16.* Output Termination Option: Bussmann Series sealed connector (see page 4); Accepts Delphi Packard 800 series terminals.* Two M6 threaded studs. Torque Rating: Input stud: 144in-lb (16.3Nm) max.; Output stud: 48in-lb (5.4Nm) max. 70A-Sealed Mounting Torque Rating: 48in-lb (5.4Nm) max. Ingress Protection Rating: IP66 (excluding stud connections) OPTIONS Mounting: Counter rotation feature (CRF) available to prevent rotation on single bolt installations. Bussing: Custom bussing available for joining multiple PRMs/PFMs. Options also available for bussing PRMs/PFMs to other Bussmann power distribution modules. Accessories: Stud caps, separators, service components. Consult factory for details. *Electrical terminals are NOT supplied by Cooper Bussmann. PART NUMBERING SYSTEM Series/ Module Type PFM V PRM V PRM Output/Signal Connector Type 1 *PFM always uses this option. Signal Key (PRM only) N Output Key Nonswitched Value Switched Fuse (Right Side) Cover Option *1 Stud/Delphi 2 Connector/Delphi 3 Stud/AMP 4 Connector/AMP A Black (Delphi only) B Grey (AMP or Delphi) C Green (AMP only) F Red (AMP only) Y Yellow (AMP only) N Stud output (no key) A Black B Grey 0 None 2 20 amps 3 30 amps 4 40 amps 5 50 amps 6 60 amps 0 None 2 20 amps 3 30 amps 4 40 amps 5 50 amps 6 60 amps 0 No cover 1 Cover (bulk) 2 Cover (installed) 8 Cooper Bussmann Transportation Products Phone: Website: Hardware Option 0 None 1 Nuts (bulk) 2 Nuts (installed) 3 CRF 4 CRF, nuts (bulk) 5 CRF, nuts (installed)

11 SERIES PRM/PFM (Dims. shown are for reference only. Consult factory for latest prints) R10.00 [ 0.394] (2 PLS) M8X20 STUD 1.00 [ 0.039] [ 0.787] [ 0.787] [ 1.575] [ 0.513] R10.00 [ 0.394] (2 PLS) [ 0.787] [ 0.756] MOUNTING HOLE M8 X 20 STUD 6.5 X [ 0.756] 7.00 [ 0.276] 7.00 [ 0.276] [ 2.387] MOUNTING HOLE 6.5 X [ 2.387] Counter Rotation Feature (CRF) É 6.00 [ 0.236] [ 4.772] É 6.50 [ 0.256] Counter Rotation Feature (CRF) É 6.00 É 6.50 [ 0.236] [ 0.256] R 6.50 [ 0.256] (2 PLS) RELAY SIGNAL CONNECTOR USE WITH DELPHI 150 SERIES, SEALED, 2 WAY CONNECTOR OUPUT CONNECTOR USE WITH BUSSMANN SEALED CONNECTOR P/N RELAY SIGNAL CONNECTOR USE WITH DELPHI 150 SERIES, SEALED, 2 WAY CONNECTOR M6 X 20 STUD 1.00 [ 0.039] [ 0.437] R 6.50 [ 0.256] (2 PLS) 5.38 [ 0.212] [ 2.280] [ 2.004] [ 2.004] [ 2.280] [ 0.472] [ 0.472] OUTPUT CONNECTOR LOCKING TAB OUTPUT CONNECTOR RELAY SIGNAL CONNECTOR FUSE COVER LOCK/UNLOCK TAB OUTPUT STUD SWITCHED SIDE RELAY SIGNAL CONNECTOR FUSE COVER LOCK/UNLOCK TAB MOUNTING HOLE FUSE COVER (2) FEMALE MAXI INPUT STUD MOUNTING HOLE FUSE COVER (2) FEMALE MAXI INPUT STUD MULTIPLE UNIT JOINING LATCH OUTPUT STUD BATTERY SIDE Bussmann POWER RELAY POWER DISTRIBUTION MODULE [ 1.575] [ 0.787] MULTIPLE UNIT JOINING LATCH [ 0.513] [ 4.772] R10.00 [ 0.394] (2 PLS) R6.50 [ ] (2 PLS) [ 0.787] M8X20 STUD [2.387] MOUNTING HOLE 6.5 X 35.4 M6X20 STUD (2 PLS) OUTPUT STUDS FUSE COVER LOCK/UNLOCK TAB MOUNTING HOLE FUSE COVER: (2) FEMALE MAXI [ 0.756] 7.00 [ 0.276] Counter Rotation Feature (CRF) É 6.00 [ 0.236] É 6.50 [ 0.256] 1.00 [ 0.039] [ 1.732] [2.008 ] [ 0.472] INPUT STUD [ 0.787] [ 1.575] MULTIPLE UNIT JOINING LATCH [ 0.513] [ 3.765] Cooper Bussmann Transportation Products Phone: Website: 9

12 Bussmann ATC TERMINAL POWER DISTRIBUTION MODULE SERIES REAR TERMINAL ATC FUSE BLOCK DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) The Rear Terminal ATC Fuse Block (RTA) is a rear-fed panel with high component retention, which makes it an ideal choice for high vibration environments including construction, agriculture, bus, RV, heavy trucking equipment, etc. It is available in multiple lengths and internal bussing configurations. This allows for up to three separate power input circuits and 32 individual output circuits. Input Terminal Rating: 1/4-20 stud; Quick-connect terminals provided on middle bus (Series 15713). 200A max total input for unit. Output Terminal Rating: 30A max load per circuit. Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black thermoplastic. Termination: Delphi Packard Pack-Con Series 3 & 5.* Input Wire Size: #4-6 AWG. Output Wire Size: #10-16 AWG. Torque Rating: 50in-lb (5.6Nm) max. Mounting Torque Rating: #10-32 threaded inserts, 24in-lb (2.7Nm) max torque. OPTIONS Positions: 8-32 circuits available. Split Power: Single, dual, or triple bus options. Cover: Splash-resistant covers available. Short cover for fuses only, and taller cover for use with circuit breakers. Locks: Secondary locks available for securing of output terminals (#15710-TP). (Comes in multiples of 8 positions. Must order multiple strips to cover length of selected RTA.) Tools: Output terminal removal tool (#HT ). Secondary lock removal tool (#HT ). *Electrical Terminals are NOT supplied by Cooper Bussmann A Middle bus has quick-connect terminals [ 0.74] [ 0.42] [ 0.41] (series only) 85.8±0.50 [3.38±.20] 74.7± 0.5 [2.94±.20] 59.4 [ 2.34] 8 POLE 12 POLE 16 POLE 20 POLE 24 POLE 28 POLE 32 POLE DIM 'A' VALUE DIM 'B' VALUE THREADED INSERTS (4 PLACES) B 12.1 [ 0.48] [2.61] BREAKER COVER [1.95] FUSE COVER COVER TETHER 33.3 [1.31] 35.0 [ 1.38] QUICK-CONNECT TERMINALS (Series 15713) 1/4-20 STUD (2 PLACES) 10 PART NUMBERING SYSTEM Series Single Stud, Single Supply Circuit 2 Double Stud, Split Supply Circuit 3 Triple Buss, Split Supply Circuit No. of Positions / Left Side Right Side (max. tot 32) (increments of 4) 3 - Total Pos Left Side (max. total of 32) (increments of 4) Hardware Options 0 W/O nuts 1 Nuts shipped bulk 2 Nuts assembled Cover Option 0 No cover 1 w/ fuse cover 2 w/ CB cover Marking Option A-Standard (consult factory for special marking Cooper Bussmann Transportation Products Phone: Website:

13 SERIES ATC Blade-Type Fuse Panels DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) The ATC fuse block is a compact, yet rugged, power distribution module. It is available in a single or dual internal buss electrical configuration featuring an optional ground pad terminal strip. The fuse block is surface mounted, uses convenient quick-connect terminals, and is recommended as a supplemental power distribution module. It can be used to accompany main PDMs such as the Bussmann 31000/32000 Series VEC/DVEC, Series RTA, and the Series RTMR. Input Terminal Rating: #10-32 threaded studs (100A max). Output Terminal Rating: 30A max per circuit. Temperature Rating: 20 F (0 C) to 150 F (65 C). Materials: Black thermoplastic. Termination:.250" x.032" quick-connect terminals. Ground terminal pad option available. Input wire size: #4-6 AWG. Output wire size: #12-16 AWG. Torque Rating: 20in-lb (2.25Nm) max. Mounting Torque Rating: 8in-lb (0.9Nm) max. OPTIONS Positions: 4-20 circuits available. Split Power: Single or dual buss options Series Series "L".22" DIA. HOLE WITH.41 x.12 DEEP C'BORE (4X) "L" "C" "C" Bussmann ATC TERMINAL POWER DISTRIBUTION MODULE 1.06" (26.92) 3.37" (85.59) 2.50" (63.50) 1.06" (26.92).62" (15.75).80" (20.32).250" QC (COPPER ALLOY - TIN PLATED).62" TYP (15.75) ( SHOWN) Ground Terminal Base Option (12).250" QC TERMINALS W/COMMON WIRING STUD, ADD 1.300" TO "L" FOR OVERALL LENGTH 1.22" (30.98) ( /08-20 SHOWN) No. of No. of Fuses C L L Fuses C L L Dimensions in inches. Multiply by 25.4 for metric. PART NUMBERING SYSTEM Series Single Stud, Single Supply Circuit 2 Double Stud, Split Supply Circuits No. of Fuses &/or Circuit Breaker Positions / Left Side Right Side (max. combination of 20) Hardware Options 0 W/O nuts 1 Nuts shipped bulk 2 Nuts assembled Ground Terminal Base 0 None 1 Include Ground Pad Cooper Bussmann Transportation Products Phone: Website: 11

14 Bussmann BOLT-IN FUSEHOLDERS HMG FUSEHOLDER Automotive Bolt-In Fuseholder for the AMG Fuse The HMG fuse holder accepts industry standard AMG fuses for primary fusing applications. The narrow rugged body makes it ideal for demanding environments such as under the hood locations in construction, agriculture, heavy trucking, and specialty vehicle applications. Rating: For use with AMG fuses from A. Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black thermoplastic with zinc-plated steel studs. Termination: M8 or 5/16-18 threaded studs and hex nuts for fuse mounting. Wire sizes: #2-8 AWG. Torque Rating: 150in-lb (17Nm) max. Mounting Torque Rating: Optional mounting hole patterns, 44in-lb (5Nm) max. FEATURES Side-stackable Bottom side insulated from mounting panel. Splash resistant cover. DIMENSIONS (Dims.shown are for reference only. Consult factory for latest prints) 4.80" (121.8) 1.11" (26.3) BUSSMANN use AMG fuse 1.44" (36.7) 3.65" (92.6) 4.94" Tie Wrap Mount 4.23" (125.4) (107.4) 4.23" (107.4) Cover Tether Tie-Wrap Pass Thru's 1.51" 0.81" (38.4) (20.7") 1.02" (25.8).26" (Ø6.6) Offset Mount.26" (Ø6.6) 4.94" (125.4) Center Mount PART NUMBERING SYSTEM Series H M G Base 1 Tie wrap mount 2 Offset mounted 3 Center mounted* Hardware 1 5/16-18 Studs w/nuts installed 2 5/16-18 Studs w/nuts bulk 3 5/16-18 Studs w/o nuts 4 M8 x 1.25 studs w/nuts installed 5 M8 x 1.25 studs w/nuts bulk 6 M8 x 1.25 studs w/o nuts Style 0 No cover 1 Cover installed 2 Cover bulk Options Consult factory for Bus Bar options *Consult factory for availability. 12 Cooper Bussmann Transportation Products Phone: Website:

15 FMG FUSEHOLDER Full Access Automotive Bolt-In Fuseholder for the AMG Fuse The FMG fuse holder accepts industry standard AMG fuses for primary fusing applications. The FMG is offered with a tough elastomer cover for fuse protection, yet allows for cable input from various orientations. This fuse holder cover is available in multiple colors and lengths. Similar to Bussmann s HMG holder, the FMG is well suited for demanding environments such as under the hood locations in construction, agriculture, heavy trucking, and specialty vehicle applications. Rating: For use with AMG fuses from A. Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black thermoplastic with zinc-plated steel studs; thermoplastic elastomer cover. Termination: M8 or 5/16-18 threaded studs and hex nuts for fuse mounting. Wire sizes: #2-8 AWG. Torque Rating: 120in-lb (13.5Nm) max. Mounting Torque Rating: 1/4-20 screws with washers (recommended), 44in-lb (5Nm) max. OPTIONS Cover: Available in black or red. Extended cover length also available. FEATURES Full access for cables. Can be routed to studs from nearly every direction. Bussmann BOLT-IN FUSEHOLDERS DIMENSIONS (Dims.shown are for reference only. Consult factory for latest prints).80 [20.4] 1.35 [34.4] 2.46 [62.5] REF [101.6] 4.23 [107.4] Ø.25 [Ø6.4].77 [19.5] (STANDARD COVER).96 [24.5] (EXTENDED COVER) 1.73 [43.9] REF [121.4] PART NUMBERING SYSTEM Series F M G Base 1 M8 studs 2 5/16-18 studs Hardware 0 No hardware installed 1 - Nuts installed 2 Nuts bulk Cover 0 No cover 1 Cover (black) installed 2 Cover (black) bulk 4 Cover (red) installed 5 Cover (red) bulk 6 Extended Cover (black) installed 7 Extended Cover (black) bulk 8 Extended Cover (red) installed 9 Extended Cover (red) bulk Cooper Bussmann Transportation Products Phone: Website: 13

16 Bussmann INLINE FUSEHOLDERS INLINE FUSEHOLDERS In-Line Fuseholders for Blade-Type Fuses HHC, HHD, HHF, HHG, HHR, and HHS In-Line Fuseholders for ATC Blade-Type Fuses. Rating: 32V, See table for max. amp. Write-in space for circuit identification on HHC holder. Plastic cover fits only HHD holder. HHR holder is waterproof with a locking cover and mounting hole. HHS is a self-stripping holder..157".375".343".682".906".500" 4" 1.25" ATC Blade Type Holder.363".250" (TYP/ 2) 4".290".410" 1".140".375".296".781".906".500" 4" 1.12".364" 4" (TYP/ 2) 4".140".343" (Dims. Shown are for reference only. Contact factory for latest prints) Catalog No. Description Fuse Size Electrical Connection HHC Yellow fuseholder (body only) 1 20 A #16 AWG lead black wire HHD Black fuseholder (body only) 1 30 A #12 AWG lead yellow wire HHD-C Cover only Fits only HHD Clear polycarbonate HHF Black fuseholder w/cover 1 20 A #16 AWG lead yellow wire HHG Black fuseholder w/cover 1 30 A #12 AWG lead yellow wire HHR.606".920" 1.100" 1.820" 0.360" 1.250" HHR 1.850" 5" HHD Dimensions in inches. Multiply by 25.4 for metric. Black waterproof fuseholder w/locking cover & mounting hole 1 30 A HHS Blue fuseholder 1 20 A 4".810".250" (TYP/2) 1.000" 4" HHF / HHG HHC.670".430" #12 AWG lead orange wire 5 length Self-stripping; accepts #18- #14 AWG copper wire only 1" HHL and HHM In-Line Fuseholders for ATM MINI Fuses. Rating: 32V, See table for max. amp. Body material withstands high temps. Protective cover has removable straps. Rated IP67 with cover installed..25" MINI Fuse Blade Type Holder 1.56" 4.75" 4.75" Dimensions in inches. Multiply by 25.4 for metric. (Dims. Shown are for reference only. Contact factory for latest prints) Catalog No. Description Fuse Size Electrical Connection HHL Fuseholder w/cover 2 20 A #16 AWG lead black wire; HHL-B Body only 4" length HHM Fuseholder w/cover HHM-B Body only 2 30 A #12 AWG lead red wire; 4" length HHM-C Cover only.25".59".41" HHX In-Line Fuseholder for MAXI Fuses. Rating: 32V, 60A Max. Firewall mounting hole permits two or more holders to be mounted together. Cover comes with a removable strap. 3.35" 6.70" 6.70" (Dims. Shown are for reference only. Contact factory for latest prints) 1.37" Dimensions in inches. Multiply by 25.4 for metric..265" DIA. HOLE MAXI Fuse Blade Type Holder Catalog No. Description Fuse Size Electrical Connection HHX Fuseholder w/cover HHX-B Body only amps #6 lead wire; 5" length HHX-C Cover only 14 Cooper Bussmann Transportation Products Phone: Website:

17 SERIES Battery Disconnect Switch Applications: A non-fused current interrupt disconnect designed for opening the circuit between a battery and the complete electrical load of a battery-powered system. Rating: 400A continuous,. 50VAC/VDC. Vehicle cranking and max. surge currents to 2,000A (based on 20% duty cycle with ON times of 5 seconds max.). Temperature Rating: 40 F ( 40 C) to 150 F (65 C). Termination: 1/2-13 Copper alloy stud. Torque Rating: 420in-lb (47.5Nm) max. Mounting Torque Rating: With mounting brackets: 48in-lb (5.4Nm) max; without mounting brackets: 10in-lb (1.1Nm) max. OPTIONS Handles: Three handle styles available. Other: Lubricant-filled body with silicone sealant. PART NUMBERING SYSTEM Series Handle Option Bracket Option B Bracket Lubricant w/sealant L R (Grease Filled) Bussmann BATTERY DISCONNECT DIMENSIONS ( B Shown) (Dims. shown are for reference only. Consult factory for latest prints).59" (15.1) 2.44" (61.9) 4.87" (123.8) Handle Variations 3.12" (79.4) 3.0" (76.2) 3.5" (88.9) 4.19" (106.4) ON OFF Ref. Point A " (76.2) 2.75" (69.8) Ref. Point A.50" (12.7) 5.5" (139.7) 7.0" (177.8) 8.0" (203.2) 1.25" (31.7) Ref. Point A " (114.3) 3.81" (96.8) 1.56" (39.7) ON Ref. Point A " (28.4) Stainless washers and locknuts supplied 1/2-13 Copper alloy stud Cooper Bussmann Transportation Products Phone: Website: 15

18 Bussmann VEHICLE IGNITION JUNCTION PROTECTION BLOCKS CENTER 16 STUD TYPE JUNCTION BLOCKS Applications: Heavy-duty ground or power connection points in AC or DC circuits. Feedthru or stand alone mount options available for transformers, communication and computer power sections along with various vehicle electrical systems. Mounting Torque Rating: 48in-lb (5.4Nm) max. FEATURES Modular design offers design and manufacturing flexibility. Suggested Max. Termination Ratings: Thread/Stud Size Amperages #10 50 amps #1/4 & M6 100 amps #5/ amps #3/8 250 amps #1/2 400 amps DIMENSIONS J F G E D (Dims. shown are for reference only. Consult factory for latest prints) K A K A K A Part Fig. A B C D E F G H J K L M Max. Torque (in-lb) Material Color C1925* dia. w/.44 dia. 1/ Thermoplastic / (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) C bore x.16 deep Zinc plated Brass Red C1925B* dia. w/.44 dia. 1/ Thermoplastic / Black (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) C bore x.16 deep Zinc plated Brass C1925-1* dia. w/.44 dia. 1/ Thermoplastic / Red (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) C bore x.16 deep Tin plated Brass C1925-1B* dia. w/.44 dia. 1/ Thermoplastic / Black (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) C bore x.16 deep Tin plated Brass C1925-2* dia. w/.44 dia. 3/ Thermoplastic / Red (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) C bore x.16 deep Tin plated Brass C1925-2B* dia. w/.44 dia. 3/ Thermoplastic / Black (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) C bore x.16 deep Tin plated Brass C None.19 None dia. 1/ Thermoplastic / Black (69.8) (36.6) (31.7) (38.1) (28.6) (9.5) (4.8) (50.8) Zinc plated Brass C None.19 None dia. 5/ Thermoplastic / Black (69.8) (36.3) (31.7) (38.1) (28.6) (9.5) (4.8) (50.8) Zinc plated Brass C1938* dia. w/.41 dia. 3/ Thermoplastic / (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x 14 deep Zinc plated Brass Black C1938R* dia. w/.41 dia. 3/ Thermoplastic / Red (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x 14 deep Zinc plated Brass C1938-1* dia. w/.41 dia. 5/ Thermoplastic / Black (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x 14 deep Tin plated Brass C1938-1R* dia. w/.41 dia. 5/ Thermoplastic / Red (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x 14 deep Tin plated Brass C2791* dia. w/.41 dia. 1/ Thermoplastic / (52.4) (17.5) (11.2) (15.9) (17.5) (7.9) (17.5) (1.6) (1.6) (33.3) C bore x.14 deep Zinc plated Brass Black C2791-R* dia. w/.41 dia. 1/ Thermoplastic / (52.4) (17.5) (11.2) (15.9) (17.5) (7.9) (17.5) (1.6) (1.6) (33.3) C bore x.14 deep Zinc plated Brass Red C2909* dia. w/.41 dia Thermoplastic / (52.4) (17.5) (11.2) (15.9) (25.4) (7.9) (17.5) (1.6) (1.6) (33.3) C bore x 14 deep Zinc plated Brass Black C2909-1* dia. w/.41 dia. 1/ Thermoplastic / (52.4) (17.5) (11.2) (15.9) (25.4) (7.9) (17.5) (1.6) (1.6) (33.3) C bore x 14 deep Zinc plated Brass Black C4044* dia. w/.41 dia. 3/ Thermoplastic / (52.4) (22.2) (15.9) (15.9) (28.6) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x.14 deep Zinc plated Brass Black C4044-1* dia. w/.41 dia. 3/ Thermoplastic / Black (52.4) (22.2) (15.9) (15.9) (15.9) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x.14 deep Tin plated Brass C4044-1R* dia. w/.41 dia. 3/ Thermoplastic / Red (52.4) (22.2) (15.9) (15.9) (15.9) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x.14 deep Tin plated Brass C5898* dia. w/.41 dia. 3/ Thermoplastic / (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) C bore x.14 deep Zinc plated Brass Red C None.06 None dia. w/.41 dia. 1/ Thermoplastic / Black (52.4) (22.2) (15.9) (15.9) (15.9) (7.9) (1.6) (33.3) C bore x.14 deep Zinc plated Steel C7018* dia. w/.41 dia. M6 55 Thermoplastic / (52.4) (17.5) (11.2) (11.9) (17.5) (7.9) (13.5) (1.6) (1.6) (33.3) C bore x 14 deep Zinc plated Steel Black C7020* dia. w/.41 dia. 3/ Thermoplastic / Red (52.4) (23.8) (17.5) (22.2) (17.5) (8.0) (31.8) (1.6) (1.6) (33.3) C bore x 14 deep Zinc plated Brass JB None.06 None dia. w/.37 dia. 3/ Thermoplastic / Black (54.0) (24.9) (15.9) (22.2) (17.5) (7.9) (1.6) (34.9) C bore x.14 deep Zinc plated Sleel JB None.06 None dia. w/.37 dia. 3/ Thermoplastic / Red (54.0) (24.9) (15.9) (22.2) (17.5) (7.9) (1.6) (34.9) C bore x.14 deep Zinc plated Sleel * Feed-thru Options Nuts & washers; consult factory. Cooper Bussmann Transportation Products Phone: Website: H M (thread size) C B 1.87" (47.6) 1.12" (28.6).75" (19.1).75" (19.1) L(2 MTG. HOLES) L(2 MTG. HOLES) L (4 MTG. HOLES) Fig. 1 Fig. 2 Fig. 3

19 STUD TYPE JUNCTION BLOCKS (Non Feed-Thru) Dimensions.75" (19.05).375" (9.53).75".375".75" (19.05).625" A C 0ther series available with.750" centers: Dimensions (Dims. shown are for reference only. Consult factory for latest prints) B A C B.375" (9.53) 1.12" (28.45).375" 1.0" #10-32 zinc plated steel studs (Dims. shown are for reference only. Consult factory for latest prints) Series C4559 & C6083 Rating: 30A, 600V Temperature Rating: 250 F (120 C) Materials: Black thermoplastic with zinc-plated steel studs. Termination: #10-24 threaded studs on.750" centers. Studs feature a dog point to guide nut onto thread. Torque Rating: 25 in-lb (2.8Nm) max. Mounting Torque Rating: 24in-lb (2.7Nm) max. OPTIONS Positions: 2-16 positions available. FEATURES Numbers and arrows molded on top of barriers indicate terminals. Compliances: UL/CSA; CE Certified. C " (21.34).31" (7.87) Mtg. holes 9/32"x 3/8" slot.84" (21.34) C " (7.87) (A,B,C Dimensions are the same as C4559).81" 1.16" C " Mtg. holes 9/32"X3/8" slot.5" 1.05" (26.67) 1.09" (27.69) Series C5237 & JB ".31" JB XX (No bosses between studs) (A,B,C Dimensions ars the same as C5237) Part No. A B C C (76.2) 2.25 (57.1) 0.75 (19.0) C (95.2) 3.00 (76.2) 1.50 (38.1) C (114.3) 3.75 (95.2) 2.25 (57.1) C (133.3) 4.50 (114.3) 3.00 (76.2) C (152.4) 5.25 (133.3) 3.75 (95.2) C (171.4) 6.00 (152.4) 4.50 (114.3) C (190.5) 6.75 (171.4) 5.25 (133.3) C (209.5) 7.50 (190.5) 6.00 (152.4) C (228.6) 8.25 (209.5) 6.75 (171.4) C (247.6) 9.00 (228.6) 7.50 (190.5) C (266.7) 9.75 (247.6) 8.25 (209.5) C (285.7) (266.7) 9.00 (288.6) C (308.4) (285.7) 9.75 (247.6) C (323.8) (308.4) (266.7) C (342.9) (323.8) (285.7) Rating: UL: 30A, 300V; CSA: 30A, 600V. Temperature Rating: 250 F (120 C) Materials: Black thermoplastic with brass studs. Termination: #10-32 threaded studs on.625" centers. Studs feature a dog point to guide nut onto thread. Torque Rating: 25 in-lb (2.8Nm) max. Mounting Torque Rating: 24in-lb (2.7Nm) max. OPTIONS Positions: 1-15 positions available. FEATURES Numbers and arrows molded on top of barriers indicate terminals. Compliances: UL/CSA; CE Certified. Part No. A B C C (50.8) 1.25 (31.7) C (66.7) 1.87 (47.5).625 (15.9) C (82.5) 2.50 (63.4) 1.25 (31.7) C (98.4) 3.12 (79.4) 1.87 (47.5) C (114.3) 3.75 (95.2) 2.50 (63.4) C (130.8) 4.37 (111.1) 3.12 (79.4) C (146.0) 5.00 (127.0) 3.75 (95.2) C (161.9) 5.62 (142.9) 4.37 (111.1) C (177.8) 6.25 (158.7) 5.00 (127.0) C (193.7) 6.87 (174.6) 5.62 (142.9) C (209.5) 7.50 (190.5) 6.25 (158.7) C (225.4) 8.12 (206.4) 6.87 (174.6) C (241.3) 8.75 (222.2) 7.50 (190.5) C (257.2) 9.37 (238.1) 8.12 (206.4) C (273.0) (254.0) 8.75 (222.2) Bussmann JUNCTION BLOCKS Cooper Bussmann Transportation Products Phone: Website: 17

20 Bussmann CIRCUIT PROTECTION PRODUCTS Basic Overcurrent Technology Overcurrent devices may serve several purposes in electrical circuits: To protect components, equipment, and associated wiring from the effects of electric circuit overloads and/or short circuits. To isolate branch circuits from the main power supply once an overload or short circuit has occurred. Fuses and circuit breakers are commonly selected as the preferred overcurrent device. TYPES OF OVERCURRENT An overcurrent device is constructed to react in a prescribed fashion to varying levels of electrical current, where at pre-determined levels, the device provides interruption of the current flow through it. Any current that exceeds the ampere rating of the fuse or circuit breaker is an overcurrent. Overcurrents are generally classified as either short circuits or overloads and are defined as follows: Short circuit - a current that greatly exceeds the rating of the device. It is caused when a malfunction or accident creates a break in the normal path allowing electricity to flow directly to ground or another phase. This shorter current path bypasses the resistance offered by the circuit components and the load connected in the normal current path. In this situation there is little resistance to impede the current and the current will build to a level where the heat generated can cause insulation damage and/or equipment breakdown. Overload - an overcurrent that is within the normal current path. Overloads occur when the current exceeds the value for which the equipment or associated wiring is rated. This typically occurs when too many devices are connected to the circuit or when a device connected to the circuit malfunctions. Overloads are also caused by harmless temporary surge currents; such as when motors are started. These overload currents are normal, usually brief in duration, and have no harmful effect on the circuit components. (It is important that protective devices do not react to such overloads.) Sustained overloads, however, may slowly cause overheating of the wiring and the components. Provided the overload is of sufficient magnitude and duration to activate the device, the circuit protection device shall open before the overload induces system component failures. SELECTING OVERCURRENT PROTECTION During normal conditions, an overcurrent protection device must carry the current without nuisance openings. However, when an overload or short circuit occurs the device interrupts the overcurrent and withstands the voltage across the device. To properly select an overcurrent device the following items must be carefully considered: Voltage rating - represents the maximum system voltage present in the circuit in which the overcurrent device is installed. The system voltage should not exceed this value for proper operation of the device during an overcurrent event. Current Rating - the amperage value marked on the circuit protection device. The circuit protection device is designed to handle this value under steady operating conditions and at room ambient temperatures. Since field applications often deliver loading conditions and ambient temperatures that vary from ideal nominal settings, it is recommended that circuit designers select device ratings above the nominal circuit current continuous load to prevent nuisance trips. Additionally, the continuous current flowing through the overcurrent protective device should not be more than 80% of the current rating. Characteristics of equipment to be protected - during the operation of protected equipment, system current can significantly vary. This is particularly evident when motor or other inductive loads in the circuit cause large current surges during start-up. Circuit protection designers should be aware of these surges and/or in-rush characteristics and select the overcurrent protection devices accordingly. Available short circuit current - during a fault or short circuit condition the fuse or circuit breaker may see a large amount of current. Large DC battery supplies and high current rated electric distribution buses often have this potential for severe short circuits. In these situations, the circuit protection device should have an interrupting rating that is equal to or greater than the short circuit current that can be delivered. Ambient temperature - the time it takes to interrupt the current is dependent upon the ambient current temperature characteristics. Ambient temperature refers to the temperature of the air immediately surrounding the circuit protection device. The ambient temperature around the fuse or circuit breaker can be appreciably different than the outside room or larger enclosure containing the device. This can occur when the device is contained in a tight area or it is mounted in or near a heat-producing component such as a transformer or resistor. When selecting a fuse or circuit breaker at ambient temperatures significantly different from the stated nominal temperature, the circuit designer should adjust the selected overcurrent protection rating based on the published temperature re-rating curves. OVERCURRENT PROTECTION DEVICES Two categories of overcurrent devices are available. Fuses The key component of a fuse is the element, a short piece of metallic wire or link made of a material with a 18 Cooper Bussmann Transportation Products Phone: Website:

21 Basic Overcurrent Technology relatively low and predictable melting point. Fuses are current-sensitive devices and the resistance is so low that they simply act as a conductor. Circuit protection is provided when the fuse element melts and interrupts an overcurrent. The key criteria used to judge the performance of a fuse is the time-versus-current characteristic curve. This curve can be used to match the fuse with the load. Fuses may be preferred when fast response to a short circuit condition is required or when high available short circuit currents occur. Fuse characteristic curves can be used to carefully size the device to a critical or special application. Thermal Circuit Breakers The basic components of a thermal circuit breaker are the thermal alloy element, electrical contacts, and the terminals for external connections. When an overload occurs, heat is generated as the current flows through the thermal alloy element causing it to deflect and separate the electrical contacts, interrupting current flow. An important parameter used to judge the performance of a thermal circuit breaker is the time-versus-current characteristic curve, which is similar to that of a fuse. A thermal circuit breaker is generally not a one-event type device as is a fuse. The resettable features of circuit breakers are often found attractive for use in electrical circuits where non-resetting interruption of current flow is undesirable. It is important to note that cycle life of a thermal circuit breaker is impacted both by the operational characteristic of the circuit breaker as well as the relative magnitude and duration of overcurrents or short circuits that the device experiences. There are different operational characteristics of Cooper Bussmann thermal circuit breakers, which are described below. CIRCUIT BREAKER OPERATIONAL CHARACTERISTICS Four different methods for reset are generally available: Type I (automatic reset): the circuit breaker trips and resets in response to the overcurrent condition in a repetitive fashion. This version should be used in applications that provide for other self-limiting or non-resettable means (such as after a main fuse, main manual-reset circuit breaker, or momentary switch). These devices, while automatic in reset function, are not designed for long-term cycling conditions in applications where operator awareness of circuit fault or serviceability access is limited, leading to unsatisfactory failure events. Refer to SAE J553 or J1625 for additional details. Type II (modified reset): the circuit breaker contains an additional resistive component that enables the device to have only brief trip and reset activity and then afterwards maintains an open circuit condition (except for a low milliamp draw through the resistor). Requires minimum voltage/current to maintain open circuit - see standards for details SAEJ553. Type III (manual reset): the circuit breaker will trip in response to an overcurrent condition after which a reset button or lever extends externally to indicate that the breaker has tripped and is in a non-conducting state. The trip indicator button or lever must be manually activated to return the device to normal operation. Type III (switchable): same as the manual Type III manual reset with the additional feature of allowing the user to open the circuit using an externally accessible trip mechanism. CIRCUIT BREAKER APPLICATION NOTES Circuit Breaker Performance - Cooper Bussmann thermal circuit breakers are designed to conform to relevant industry standards (refer to individual models for standard references). There are specific performance aspects that may not always make circuit breakers suitable for certain applications, especially in circuits that are incapable of providing enough current to operate the circuit breaker in a timely manner relative to the associated components and wiring. It is of utmost importance that the circuit designer investigates components that have finite overload capabilities which are below the time-current levels to initiate timely circuit breaker activation. Evaluation - Design-in situations require that the user considers all application conditions and conducts operational testing to establish the correctness of ampere/voltage rating as well as overload protection suitability. Further review of industry standards is advised to understand all performance aspects that affect usage. Wiring Considerations - Additional evaluation of circuit conditions is essential to achieve proper matching of wire sizes to the current load conditions anticipated under normal operating conditions, and estimated abnormal operating conditions when overloads could occur. Thermal circuit breakers and fuses introduce some level of resistance to the current path where installed. These factors should also be considered when choosing wire, both in gauge as well as in temperature rating of insulation. Installation Environment - Thermal circuit breakers are produced in various configurations. Installation environmental conditions need to be considered and compared to the capability of the particular product of choice. Not all circuit breaker designs are suitable for harsh conditions, such as may be encountered underhood or external cavities. Bussmann CIRCUIT PROTECTION PRODUCTS Cooper Bussmann Transportation Products Phone: Website: 19

22 Bussmann MINI TERMINAL CIRCUIT PROTECTION MINI BLADE FUSES ATM Mini Fuse Fast Acting Current Rating: 2-30A. Voltage Rating: 32VDC. Interrupt Rating: 32VDC. Housing Material: UL-Rated 94V-0 thermoplastic. Terminal Material: Silver-plated zinc alloy. Marking: Amperage marking is OCR compliant. Compliances: UL-Listed; SAE J2077; ISO Consult factory for higher voltage fuses. Part No. Amp Rating Color BK/ATM-2 2 Gray BK/ATM-3 3 Violet BK/ATM-4 4 Pink BK/ATM-5 5 Tan BK/ATM Brown BK/ATM Red BK/ATM Lt. Blue BK/ATM Yellow BK/ATM Natural BK/ATM Green DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints).345" (8.76).295" (7.49) TIME IN SECONDS V.430" (10.92).320" REF. (8.13).15" (3.81) 10 CURRENT IN AMPERES.150" (3.81).110" (2.79).0325" (.82) MINI FUSE PULLER - PART NUMBER MINI CB 2A MINI FUSE 3A 4A 5A 7.5A 10A See page 27 for more information. 15A 20A 25A 30A AMPERE RATING Cooper Bussmann Transportation Products Phone: Website:

23 SERIES 21X MINI CIRCUIT BREAKERS SERIES 21X MINI CIRCUIT BREAKERS Auto & Modified Reset Single Pole Thermal Type Breakers Rating: 5-30A; 14VDC. Interrupt Rating: 14VDC (5-10A versions); 14VDC (15A version); 14VDC (20A version); 14VDC (25-30A versions). Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Grey UL-Rated 94V-0 thermoplastic housing with metal cover: gold (Type I) or silver (Type II). Marking: Standard marking includes amp/voltage ratings, part number, and date code. OCR marking is available. Termination: Compatible with 280 Type fuse blocks using 0.32in. (8.1mm) centerline spacing. Compliances: SAE J553 Type I and Type II Circuit Breakers. Time in Seconds PART NUMBERING SYSTEM Series Type I, 14VDC 212 Type II, 14VDC TRIP TIME VS. PERCENT OF RATED CURRENT % 200% 300% 400% 500% 600% % of Rated Current Rating 05 5 amps amps amps amps amps amps amps Marking 00 Std. Marking (Consult Factory for Special Marking Options) Maximum % Hold Current DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints).32" (8.13).110" (2.79).490" (12.45).435" (11.05) Special Options (Consult Factory for Special Options) 1.06" (26.92).354"(8.99) MINI FUSE PULLER - PART NUMBER MINI CB MINI FUSE TEMPERATURE DERATING CURVES.250"(6.35).150"(3.81).032"(.81) AMBIENT TEMPERATURE IN DEGREES C See page 27 for more information. Bussmann MINI TERMINAL CIRCUIT PROTECTION Cooper Bussmann Transportation Products Phone: Website: 21

24 Bussmann ATC TERMINAL CIRCUIT PROTECTION ATC BLADE FUSES ATC Blade Type Fuse Fast Acting Current Rating: 1-40A. Voltage Rating: 32VDC. Interrupt Rating: 32VDC. Housing Material: UL-Rated 94V-0 thermoplastic. Terminal Material: Tin-plated zinc alloy. Marking: Amperage marking is OCR compliant. Compliances: UL-Recognized (3-40A); SAE J1284; ISO Consult factory for higher voltage fuses. Part No. Amp Rating Color BK/ATC-1 1 Black BK/ATC-2 2 Gray BK/ATC-3 3 Violet BK/ATC-4 4 Pink BK/ATC-5 5 Tan BK/ATC Brown BK/ATC Red BK/ATC Lt. Blue BK/ATC Yellow BK/ATC Clear BK/ATC Green BK/ATC Amber DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints).49" (12.54).26"(6.67).16" (4.13) 20 ATC.46" (11.7).76" (19.30) BUSS.57" (14.61).75" (19.05).21" (5.25) ATC FUSE PULLER - PART NUMBER TIME IN SECONDS ATC FUSE ATC CB " (3.80).03" (.69) See page 27 for more information. AMPERE RATING CURRENT IN AMPERES Cooper Bussmann Transportation Products Phone: Website:

25 SERIES 22X ATC CIRCUIT BREAKERS Dimensions (Dims. shown are for reference only. Consult factory for latest prints.) RESET BUTTON (Series 223/226) 3.81REF [0.150] 27.54REF [1.084] 5.24 REF [.206 ] Time in Seconds PART NUMBERING SYSTEM Series REF [0.571] REF [0.748] Type I, 14VDC 222 Type II, 14VDC 223 Type III, 28VDC 226 Type III w/push-to-trip option, 28VDC Consult factory for terminal option availability. TRIP LEVER (Series 226) 7.32 REF [0.288] 0.80REF [0.032] 3.00REF [0.118] 3.80REF [0.150] 6.35REF [0.250] TRIP TIME VS. PERCENT OF RATED CURRENT % 200% 300% 400% 500% 600% % of Rated Current Rating 05 _ amps [LT. Brown (Tan)]* amps [Brown]* amps [Red]* amps [Blue]* amps [Yellow]* amps [White]* amps [Green]* *Reset Button Color (223 & 226 only). ATC CIRCUIT BREAKERS Auto, Modified, & Manual Reset Single Pole Thermal Type Breakers Rating: 5-30A, 14VDC; 28VDC (Series 223 & 226). Interrupt Rating: 14VDC (5-10A versions); 14VDC (15A version); 14VDC (20A version); 14VDC (25-30A versions). Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: UL-Rated 94V-0 thermoplastic housing with gold metal cover (Type I) or silver metal cover (Type II & III). Marking: Standard marking includes amp/volt ratings, part number, and date code. Type III reset buttons are color-coded to amperage ratings. Push-to-trip option is available on manual reset version. OCR marking is available. Termination: Compatible with 280 Type or ATC fuse blocks. Compliances: SAE J Terminal Options 3.88REF [0.153] 10.28REF [ 0.405] REF [ 0.310] REF [ 0.562] Terminal 0 ATC Fuse, 4mm Insertion Depth 2 8.1mm Centerline 280 (MINI) 3 ATC Fuse, Delphi Packard Autofuse Block (e.g ) 4 ATC Fuse, Blocks with Raised Shrouds, 6.4mm Insertion Depth ATC FUSE ATC CB See page 27 for more information. Marking 00 Std. Marking (Consult factory for special marking options) Cooper Bussmann Transportation Products Phone: Website: Maximum % Hold Current REF [ 0.074] REF [ 0.428] 6.28 REF [ 0.247] 12.91REF [ 0.508] TEMPERATURE DERATING CURVES AMBIENT TEMPERATURE IN DEGREES C ATC Circuit Breaker Puller Part Number Bussmann ATC TERMINAL CIRCUIT PROTECTION 23

26 Bussmann ATC TERMINAL CIRCUIT PROTECTION SERIES 227 ATC CIRCUIT BREAKERS (Low-Profile) ATC CIRCUIT BREAKERS Manual Reset Single Pole Thermal Type Breakers Rating: 5-30A, 28VDC. Interrupt Rating: 28VDC. Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: UL-Rated 94V-0 thermoplastic body. Tin-plated copper alloy terminals. Marking: Cover is color-coded to amperage ratings. Termination: 5.2mm wide blades compatible with ATC type fuse blocks. Compliances: SAEJ553; SAEJ1171 (ignition protected). Consult factory for time characteristic curves. DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) 0.18" (4.6) 0.26" (6.5) PART NUMBERING SYSTEM Series " (19.3) 0.57" (14.6 REF) Rating 05 5 amps [LT. Brown (Tan)] 06 6 amps [Moss Green] amps [Brown] amps [Red] amps [Blue] amps [Yellow] amps [White] amps [Green] 0.57" (14.6) 0.16" (4.13) 0.99" (25.1) 1.18" (30) Marking " (6.4) 0.2" (0.6) 00-Std. Marking (Consult factory for special marking.) 15A XXXX 28VDC XXXXX 24 Cooper Bussmann Transportation Products Phone: Website:

27 MAXI BLADE FUSES DIMENSIONS ( Dims. shown are for reference only. Consult factory for latest prints) 60 32V Z " (29.2).35" (8.9).18" (4.57) Bussmann.85" (21.6) BUSS MAXI-FUSE.50" (12.7).31" (8.0).83" (21.21).10" (2.54).67" (17.02) MAXI Fuse Fast-Acting Current Rating: 20-80A. Voltage Rating: 32VDC. Interrupt Rating: 32VDC. Housing Material: UL-Rated 94V-0 thermoplastic. Terminal Material: Silver-plated zinc alloy. Marking: Amperage marking is OCR compliant. Compliances: SAE J1888, ISO AMPERE RATING Part No. Amp Rating Color BK/MAX Yellow BK/MAX Green BK/MAX Orange BK/MAX Red BK/MAX Blue BK/MAX Tan BK/MAX Neutral TIME IN SECONDS CURRENT IN AMPERES MAXI TERMINAL CIRCUIT PROTECTION Cooper Bussmann Transportation Products Phone: Website: 25

28 Bussmann MAXI TERMINAL CIRCUIT PROTECTION SERIES 19X MAXI CIRCUIT BREAKERS Series 19X MAXI Circuit Breakers Auto, Manual & Modified Reset Single Pole Thermal Type Breakers Rating: 8-50A; 14VDC; 28VDC (Series 193, 194, & 195). Interrupt Rating: 14VDC (8-10A versions); 14VDC (15A version); 14VDC (20A version); 14VDC (25-30A versions); 4VDC (35-40A versions); 14VDC (50A version). Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Grey UL-Rated 94V-0 thermoplastic. Termination: Compatible with fuse blocks accepting MAXI or ATC blade fuses. Compliances: SAE J553. DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) (23.37) PART NUMBERING SYSTEM Series (29.21) 191 Type I, 14 VDC 192 Type II, 14 VDC 193 Type III, 12V/28 VDC 194 Type I, 28 VDC 195 Type II, 28 VDC Reset Button (Series 193) (4.83) (3.57) (17.02) (0.81) (14VDC only) (9.14) (7.87) Rating (21.34) (12.70) Terminal (7.37) (11.43) 08 8 amps 01 MAXI amps 02 Wide ATC amps 03 Long ATC amps (w/dimple) amps 04 Long ATC amps (no dimple) amps amps amps (191, 193, 194 only) AMPS & BELOW TYPICAL CURVE % 0F RATED CURRENT % 0F RATED CURRENT 500% (8.38) Cover TEMPERATURE DERATING CURVES 150% 100% 50% 0% 0º (-18º) 10 AMPS & BELOW TYPICAL CURVE 400% 300% 200% 100% (7.37) (5.33) M Metal* P Plastic (193 only) 50º 77º100º 150º 200º 250º 300º (10º)(25º)(38º) (65º) (93º) (121º) (149º) TEMPERATURE IN DEGREES F (TEMPERATURE IN DEGREES C ) TIME VS. PERCENT OF RATED CURRENT 5 TERMINAL OPTIONS TIME IN SECONDS Button (193 Series Only) 1 Black 2 White * All breakers have metal cover except 193 series (4.32) (10.29) (9.40) (7.37) (5.33) 15 AMPS & ABOVE TYPICAL CURVE 15 AMPS & ABOVE TYPICAL CURVE (4.32) (10.29) (9.40) Marking (Consult factory for special markings.) 26 Cooper Bussmann Transportation Products Phone: Website:

29 SERIES 3200 INSERTION/EXTRACTION TOOL Series 3200 Automotive Fuse and Circuit Breaker Insertion/Extraction Tool FEATURES / BENEFITS Custom Configurable Design Get Only the Extractors You Need Common Platform for any Style Eliminates Design Changes When Protection Requirements Change Center Snap-Lock Mounting Hole Easy Mounting Using Simple Split-Ball Snap-Lock Post Positive Stop Locking Action Tight Grip Allows Devices to be Removed and Inserted High Temperature Resilient Nylon 6/6 (105 C) Bussmann DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) MINI CB.32" (R8.25) MINI FUSE ATC FUSE.39" (10.00) A 1.18" (30.00) MINI CB.67" (17.00) MINI FUSE 1.18" (30.00) ATC FUSE ATC CB MINI CB ATC CB 1.18" (30.00) ATC CB.31" (7.90) PART NUMBERING SYSTEM Series Configuration Top Right Bottom Left 0 MINI CB MINI FUSE ATC CB ATC FUSE 1 MINI CB BLANK ATC CB BLANK 2 MINI CB BLANK MINI FUSE BLANK 3 ATC CB BLANK ATC FUSE BLANK SERIES Series Automotive Fuse Circuit Breaker Insertion/Extraction Tool (To be used with Series Dual Vehicle Electrical Center) FEATURES / BENEFITS Positive Stop Locking Action Tight Grip Allows Devices to be Removed and Inserted. High Temperature Resilient Nylon 6/6 (105 C).34" (8.6).98" (25.00) A.24" (R6.00).16" (4.00) SECTION A-A 1.30" (33.00).06" (1.60) INSERTION/EXTRACTION TOOL PART NUMBERING SYSTEM Series Cooper Bussmann Transportation Products Phone: Website: 27

30 Bussmann FLAT-PAK CIRCUIT PROTECTION SERIES 174 FLAT-PAK CIRCUIT BREAKER DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints).93" (23.57) TERMINAL / BASE STYLES 1.11" (28.30) 174XX-3X XXA XXX BUSSMANN.81" (20.55) 32 VDC 250 VAC 174XX-3X XXA XXX 32 VDC BUSSMANN 250 VAC.76" (19.40) 174XX-3X XXA XXX 32VDC BUSSMANN 250 VAC.76" (19.40) 174XX-3X XXA XXX 32 VDC BUSSMANN 250 VAC.79" (19.98).19" (4.83) 31 UL & CSA 05 TO 30AMP.42" (10.67) 32 UL & CSA 05-40AMP.20" (5.19) 33 UL & CSA (WIRE) (RING).20" (5.19) 34 UL & CSA (WIRE) (RING).20" (5.19).60" (1.50) TYP..48" (12.10) BUSHING / NECK STYLES 7/16-28 THREAD 3/8-24 THREAD T O HARDWARE VARIATIONS.75" (19.04) PUSH R E S E T PLASTIC KNURL NUT (STANDARD).55" (14.00).35" (9.0).12" (3.00) PALNUT.79" (20.11) * PLASTIC BOOT * ALSO AVAILABLE IN BULK 3/8-24 P/N B /16-28 P/N B MANUAL RESET CIRCUIT BREAKERS Single Pole Thermal Type Breakers Applications: Branch circuit protection for multiple power outlet strips, trucks, RV s, boats, buses, portable generators, building equipment, etc. Rating: 5-40A; 250VAC/32VDC. Interrupt Rating: 250VAC. Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Grey UL-Rated 94V-0 thermoplastic. Termination: Threaded or quick-connect options available. Ingress Protection Rating: IP54 (except at terminals). Compliances: UL 1077 & CSA 22.2 No. 235 (See individual terminal styles for specific rating approvals); SAE J553; SAE J1171 (Ignition Protected)..35" (9.0).40" (9.00) SNAP - ON BUTTON MARKING OPTIONS 2 5 FIGURE A RECOMMENDED BUSHING PANEL CUTOUT.44" (Ø11.10) 9.91 (.390) 7/16-28 THREAD.32" (R8.1) PUSH TO RESET.38" (Ø9.52).55" (13.84) SNAP - ON FIGURE B 3/8-24 THREAD.63" (16.13) " (8.51) 28 Cooper Bussmann Transportation Products Phone: Website:

31 SERIES 174 FLAT-PAK CIRCUIT BREAKER PART NUMBERING SYSTEM Series Type III 250 VAC/ 32VDC Manual Reset Temperature Derating Curves for 5-40 Amp. Circuit Breakers 174 SERIES TEMP. VS. CURRENT CURVES % 0F RATED CURRENT % 0F RATED CURRENT 200% 150% 100% 50% 0% (-18 ) (10 ) (25 ) (38 ) (65 ) (93 ) (121 ) (149 ) Rating amps 06 6 amps 07 7 amps 08 8 amps amps amps amps amps amps amps* amps* TEMPERATURE IN DEGREES F (TEMPERATURE IN DEGREES C ) TIME vs. Percent of Rated Current Curves for 5-40 Amp. Circuit Breakers 174 SERIES TRIP CURVES 500% 400% 300% 200% 100% *2 or 3 Style Terminal Only. Terminal/ Base 1.25" Quick Connect screw - 90 bend screw - 90 bend 4.25" Quick Connect with 6-32 screw - 90 bend TIME IN SECONDS Bushing/ Neck 1 7/16-28 thread 2 3/8-24 thread 3 Snap-on Button A White w/no marking B Red w/no marking C Black w/no marking** D White w/amp marking Fig. A E White w/amp marking Fig. B F Red w/amp marking Fig. A G Red w/amp marking Fig. B **No marking available on Black buttons Hdwr. Pkg. 1 Pack bulk (standard) 2 Assemble to bushing 3 No hardware included 10 AMP & BELOW TYPICAL CURVE 15 AMP & BELOW TYPICAL CURVE COMMON CURVE ALL VALUES Bushing Hdwr. Special Options A White plastic knurl nut, anti-rotational B Black plastic knurl nut, anti-rotational C White plastic knurl nut, anti-rotational w/ palnut D Black plastic knurl nut, anti-rotational w/ palnut E None required for bushing F Zinc plated steel palnut G Button boot (thread-on) w/ palnut P Aluminum knurl nut & palnut R Black aluminum knurl nut & palnut S Alum. knurl nut, palnut, black plate w/ white push-to-reset T Alum. knurl nut, palnut, white plate w/ black push-to-reset V Alum. knurl nut & white plate w/ black push-to-reset W Alum. knurl nut & black plate w/ white push-to-reset X Aluminum knurl nut & internal tooth lockwasher Z Hex nut & internal tooth lockwasher 0 No hardware 1 Bulk brass screws for screw terminals 2 Bulk brass screws and lockwashers for screw terminals 3 Assembled brass screws for screw terminals 4 Assembled brass screws and lockwashers for screw terminals Bussmann FLAT-PAK CIRCUIT PROTECTION Cooper Bussmann Transportation Products Phone: Website: 29

32 Bussmann SHORTSTOP CIRCUIT PROTECTION SERIES 12X SHORTSTOP CIRCUIT BREAKERS.66" (16.8).41" (10.3).69" (17.5) A.69" (17.5).56" (14.2) Two studs:.66" (AUX);.56" (BAT) C Two studs:.66" (AUX & BAT).84" (21.4) E J.66" (16.8).56" (14.2) One.25" Q.C. (AUX); One stud (BAT).30" (7.7) TERMINAL OPTIONS.99" (25.2).41" (10.3) Double.25" Q.C. (AUX); Single.25" Q.C. (BAT).69" (17.5) L Two studs (AUX & BAT) HARDWARE WA / WB Whiz Lock # " (10.3).37" (9.4).69" (17.5) B Two studs:.56" (AUX & BAT).99" (25.2) D Two.25" Q.C. (AUX & BAT).69" (17.5) H.84" (21.4).56" (14.2).41" (10.3).56" (14.2) Double.25" Q.C. (AUX); One stud (BAT) K.54" (13.7) Two.25" Q.C. (AUX & BAT) Perpendicular Orientation PART NUMBERING SYSTEM Series Type I, 14 VDC 122 Type II, 14 VDC 123 Type III, 28 VDC 124 Type I, 28 VDC 125 Type II, 28 VDC HA / HB Hex Nut #10-32 Lock Washer KA / KB Keps Lock Nut #10-32 METAL COVER 1.24" (31.5).79" (20.1) O Bracket 1.56" (39.6) 1.24" (31.5) B Bracket PLASTIC COVER 1.27" (32.3).62" (15.7) Terminal A Two studs;.66 (Aux),.56 (Bat) B Two studs;.56 (Aux & Bat) C Two studs;.66 (Aux & Bat) ***D Two.250 QC; (Aux & Bat) ** H One stud.56 (Bat), Double.250 QC (Aux) L Two studs;.37 (Aux & Bat) AUTO, MANUAL & MODIFIED RESET CIRCUIT BREAKERS Single Pole Thermal Type Breakers Applications: Battery chargers, trucks, buses, RV s, trolling motors, etc. Rating: 5-50A, 14VDC; 28VDC (Series 123, 124, & 125). Interrupt Rating: Main Circuit Protection: 12VDC (Series 193 w/plastic cover); Branch Circuit Protection: 12VDC (Series 121 & sealed & Series 123 w/plastic cover). Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black UL-Rated thermoplastic body (thermoset for Type II body & buttons); Cover is grey thermoplastic or steel-type l gold, Type ll silver. Marking: Custom marking available. Consult factory for options. Termination: #10-32 thread and quick-connect options available. Torque Rating: 24in-lb (2.7Nm) max. Mounting Torque Rating: Plastic cover - 15in-lb (1.7Nm); Metal cover - 30in-lb (3.4Nm). Ingress Protection Rating: IP66 on plastic cover version only (except for terminals). Compliances: SAE J553; SAE J1171 (consult factory for Ignition Protection ratings). COVER & BRACKET OPTIONS (Dims. shown are for reference only. Consult factory for latest prints) O Bracket 1.56" (39.6).64" (16.3).79" (20.1).69" (17.5).83" (21.1) 1.56" (39.6).69" (17.5) 1.56" (39.6) 1.24" (31.5) A Bracket 1.24" (31.5) BAT BAT C Bracket.79" (20.1).38" (9.6).79" (20.1) AUX.38" (9.6).69" AUX (17.5).37" (9.4).83" 1.27" (21.1) (32.3) A Bracket.37" (9.4) 1.56" (39.6).12" (3.0) dia. boss.06" (1.5).62" (15.7) 1.27" 1.27".83" Ref. (Typ) (32.2) (32.2) (21.1) w/base attached B Bracket C Bracket E Bracket Rating 05 5 amps 08 8 amps amps amps amps amps amps amps amps amps amps Bracket 0 No bracket A Bracket B Bracket C Bracket E Bracket (plastic only) Mtg. Holes TIME VS. PERCENT OF RATED CURRENT 500% 100% 0 0 No bracket dia dia dia. (metal only) dia. (plastic only) dia. (plastic only) dia. (metal only) TIME IN SECONDS.62" (15.7) AUX BAT Reset button* 1.27".83" (32.3) (21.1) Series 123 O Bracket w/reset ( * Reset on BAT side) Cover* M Metal* P Plastic* *Series 123 available in plastic cover only. Series 122 & 125 available in metal cover only. **40A maximum ***30A maximum % 0F RATED CURRENT % 0F RATED CURRENT TEMPERATURE DERATING CURVES 150% 100% 50% 0% 0º 50º 77º100º 150º 200º 250º 300º (-18º) (10º)(25º)(38º) (65º) (93º) (121º) (149º) TEMPERATURE IN DEGREES F (TEMPERATURE IN DEGREES C ) 400% 300% 200% 5 Options 01 Waterproof (metal covers only) 02 Splashproof (optional on metal covers - add 02 suffix; std. on plastic covers - omit 02 suffix.) 10 AMPS & BELOW TYPICAL CURVE 15 AMPS & ABOVE TYPICAL CURVE 10 AMPS & BELOW TYPICAL CURVE 15 AMPS & ABOVE TYPICAL CURVE Hardware WA Whiz-lock nut assembled WB Whiz-lock nut bulk HA Nut & lock washer assembled HB Nut & lock KA washer bulk Keps lock nut assembled KB Keps lock nut bulk 30 Cooper Bussmann Transportation Products Phone: Website:

33 37.00" [1.46] SERIES 25X MID-RANGE CIRCUIT BREAKER 39.98" [1.57] 55.73" [2.19] PART NUMBERING SYSTEM Series Type I, 32V 254 Type III, 32V 255 Type III w/pushto-trip option, 32V MOUNTING OPTIONS 18.50" [0.73] Rating amps amps amps amps amps amps amps amps MANUAL RESET CIRCUIT BREAKERS Automatic, Manual, & Manual W/ Push-to-Trip Single Pole Thermal Type Breakers Applications: This unit is external ignition protected and weatherproof. It is typically used in DC power systems in marine applications (as a main or branch circuit breaker), truck, bus and RV systems, add-on protection for accessories, etc. Rating: 10-50A, 32VDC. Interrupt Rating: Circuit Protection (2.5kA) per ABYC E-11. Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black UL-Rated 94V-0 thermoset plastic body. Cover, lever, and button are UL- Rated 94V-0 thermoplastic. Cover has a black thermoplastic elastomer overmold. Marking: Standard marking includes amp/volt ratings, part numbers, and SAE Type B. Termination: #10-32 threaded studs. Torque Rating: 24in-lb (2.7Nm) max. Mounting Torque Rating: Panel mount with either #8-32 threaded inserts or #10 clearance holes. 18in-lb (2.0Nm) max. Ingress Protection Rating: IP66 Features / Options: Series 254 & 255 have a unique reset mechanism which provides a visual indication of tripped condition. Series 255 also features a push-to-trip option. Compliances: SAE J553; ABYC E-11; SAE J1171 (Ignition Protected). MAXIMUM % HOLD CURRENT RESET LEVER (series 254 & 255) 17.33" [0.68] #10-32 EXTERNAL THREAD TEMPERATURE DERATING CURVE AMBIENT TEMPERATURE IN DEGREE C DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) Mounting Holes TRIP BUTTON (255 series) A Thru-hole Insert (#10 Clearance) B #8-32 Threaded Inserts 21.50" [0.85] 27.80" [1.09] Hardware 0 No nuts 1 Nuts Installed 2 Nuts bulk (2) #10-32 CLEARANCE HOLE OR #8-32 CLEARANCE HOLE IF USING THREADED INSERTS 39.98" [1.574] Cooper Bussmann Transportation Products Phone: Website: TIME IN SECONDS " [1.33] TRIP TIME VS. PERCENT OF RATED CURRENT % 200% 300% 400% 500% 600% 5.00" [0.20] % OF RATED CURRENT 19.99" [0.787] Ø31.75" [Ø1.25] Bussmann MID-RANGE CIRCUIT PROTECTION 31

34 Bussmann HI-AMP CIRCUIT PROTECTION SERIES 18X HI-AMP CIRCUIT BREAKER DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints).26 (6.60) dia. Mtg.holes (2) 2.89 (73.41) Stud insulators PART NUMBERING SYSTEM Series Type I, 30V 183 Type II*, 30V 184 Type III, 48V 185 Type III-PTT, 48V 1.05 (26.67) 2.23 (56.64) (16.76) 1.09* (36.58) 1.79 (27.69) (45.47).40 (10.16) Surface Mount 1.90 (48.26) 1/4-28 Studs *183 Available in Panel Mount Only (Coverless) Reset lever (Shown in operating position series 184/185) Molded cover *Overall heights of Series 181 &183 Rating amps amps amps amps amps amps amps amps amps amps amps amps amps amps AUTO, MANUAL & SWITCHABLE RESET CIRCUIT BREAKERS Single Pole Thermal Type Breakers Applications: Typically used in auxiliary and accessory circuits in truck, bus, RV and marine systems. Others include battery chargers and DC audio systems. Series 181, 184 & 185 are sealed for engine compartment and bilge area applications. Rating: A, 30VDC; 48VDC (Series 184 & 185). Interrupt Rating: 30VDC. Operating Temperature Rating: 25 F ( 32 C) to 180 F (82 C). Storage Temperature Rating: 30 F ( 34 C) to 300 F (149 C). Materials: Black UL-Rated 94V-0 thermoset plastic. Thermoplastic elastomer stud insulators are provided on covered units with F-style (surface-mount) bases. Marking: Standard marking includes amp ratings and part numbers. Custom markings also available. Termination: 1/4-28 threaded studs. Torque Rating: 50in-lb (5.6Nm) max. Mounting Torque Rating: Panel or surface-mount options; 50in-lb (5.6Nm) max. Threaded insert option has a max torque of 25in-lb (2.8Nm). Ingress Protection Rating: IP67. Features / Options: Series 184 & 185 have a unique reset mechanism which provides visual indication of tripped condition. Series 185 also features a push-to-trip option. Compliances: SAE J1625; ABYC E-11; CE; SAE J1171 (Ignition Protected)..26 (6.60) dia. Mtg.holes (2) 2.91 (73.91) 2.41 (61.21).57 (14.49) Molded cover Mounting F Surface Mount P Panel Mount Panel Mount Terminal Hdwr. 00 Ship w/o nuts 01 Sems nuts installed 02 Sems nuts shipped bulk 03 Stainless Steel Std. nuts & washers installed 04 Stainless Steel Std. nuts & washers shipped bulk 07 Flange gasket & Sems nuts installed (Panel Mount Only) 08 Threaded insert and Sems nuts installed 12 Stainless steel nuts and lockwashers installed 13 Stainless steel Sems nut installed TEMPERATURE DERATING CURVES 200% TIME VS. PERCENT OF RATED CURRENT 600% Marking 0 Blank cover 1 Standard Marking; Part Number, Amp Rating 181, 184, 185 Series - Top Surface 183 Series - Side Surface S Standard Ignition Protected Marking (Consult factory for special markings.) 32 Cooper Bussmann Transportation Products Phone: Website: RESET 1.90 (48.26) Reset lever (Shown tripped) 1.54 (39.12) Trip button (Series 185).31 (7.87) 1.44* (36.58).89 (22.61) 1.06 (26.92) Tamper proof cover % 0F RATED CURRENT % 0F RATED CURRENT 150% 100% 50% 0% -50º 0º 50º 77º 100º 150º 200º 250º (-45º)(-18º) (10º)(25º)(38º) (65º) (93º) (121º) TEMPERATURE IN DEGREES F (TEMPERATURE IN DEGREES C ) 500% 400% 300% 200% 100% TIME IN SECONDS Flange mount gasket for thru-wall applications (option 07)

35 OFF WEATHERPROOF IGNITION PROTECTED ON SERIES 187 MARINE RATED CIRCUIT BREAKER (MRCB) PART NUMBERING SYSTEM Series Manual Reset - Switching Style Circuit Breaker Rating amps amps amps amps amps amps amps amps amps amps amps amps amps MANUAL RESET CIRCUIT BREAKERS WITH SWITCH FUNCTION Single Pole Thermal Type Breakers Applications: Typically used in DC power systems in marine applications (as a main or branch circuit breaker), truck and bus systems, RV systems, add-on protection for accessories, lift gates, etc. This unit is external ignition protected and weatherproof. Rating: A, 48VDC. Interrupt Rating: Main Breaker Protection Interrupt Rating 12VDC). (Consult factory for higher voltage interrupt ratings.) Operating Temperature Rating: 40 F ( 40 C) to 185 F (85 C). Storage Temperature Rating: 40 F ( 40 C) to 260 F (125 C). Materials: Black UL-Rated 94V-0 thermoset plastic body. Cover and lever are UL-Rated 94V-0 thermoplastic. Marking: Standard marking includes amp/volt ratings. Custom markings also available. Termination: 5/16-18 threaded studs. Torque Rating: 75in-lbs (8.5Nm) max. Mounting Torque Rating: Panel or surface-mount options; 50in-lb (5.6 Nm) max. Ingress Protection Rating: IP66. Features / Options: A manual reset circuit breaker with On-Off switch capability. Compliances: ABYC E-11; CE; SAE J1171 (Ignition Protected). Consult factory for time characteristic curves. DIMENSIONS (Dims. are shown for reference only. Consult factory for latest prints) [2.750] OFF TRIP 25A 48V DC MAX BUSS R MRCB RESET WEATHERPROOF IGNITION PROTECTED [1.135] Panel Mount [2.375] [2.289] [1.056] ON [.660] [2.271] [2.105] Mounting F Surface mount P Panel mount 3.44 [87.3].73 [18.6] 25A 48V DC MAX BUSS MRCB RESET 1.46 [37.1] Hardware 00 No hardware 03 Stainless nuts & lockwashers - installed on studs 04 Stainless nuts & lockwashers - supplied bulk packed 2.72 [69.0].16 [3.9] Base Mount 1.72 [43.8] Marking 1.64 [41.6] 1.06 [27.1] 2.24 [56.8] 2.32 [59.0] 1 Standard marking; Part Number, Amp Rating (Consult factory for special marking options.) Bussmann MARINE-RATED CIRCUIT PROTECTION Cooper Bussmann Transportation Products Phone: Website: 33

36 Bussmann BOLT-IN FUSE PROTECTION AMI SERIES BOLT IN AUTOMOTIVE FUSES : Applications: Power distribution protection for automotive systems. Consult factory for available fuseholders. Current Rating: A. Voltage Rating: 32VDC.* Interrupt Rating: 32VDC. Housing Material: UL-Rated 94V-0 thermoplastic. Terminal Material: Tin-plated brass. Mounting: Max torque of 35in-lb (4Nm). Marking: Color-coded housings for each amperage. *Consult factory for higher voltage fuses. TIME-CURRENT % of Rating PART NUMBERING SYSTEM Series B K / A M I Opening Time Minimum Maximum 100 hrs 4 hrs 90 s 5 s 0.3 s 0.1 s Rating 3600 s 100 s 10 s 1 s amps (orange) amps (lt. green) amps (red) amps (yellow) amps (brown) amps (white) amps (blue) amps (pink) amps (gray) DIMENSIONS (Dims. shown are for reference only. Consult factory for latest prints) TIME IN SECONDS Ø5.5 (Ø0.22) (1.61) 30.0 (1.18) 16.0 (0.63) (0.37) 6.0 (0.24) 12.0 (0.47) 0.8 (0.03) CURRENT IN AMPERES AMPERE RATING 34 Cooper Bussmann Transportation Products Phone: Website:

37 AMG SERIES BOLT IN AUTOMOTIVE FUSES : Applications: For high current applications. Use with Bussmann HMG or FMG fuseholders. (See pages ) Current Rating: A. Voltage Rating: 32VDC.* Interrupt Rating: 32VDC. Housing Material: UL-Rated 94V-0 thermoplastic. Terminal Material: Copper. Mounting: M8 or 5/16-18 or less studs on 2.00 in (50.8mm) centers. Marking: Color-coded amperage ratings. *Consult factory for higher voltage fuses. TIME-CURRENT % of Opening Time Rating Minimum hrs s s s s PART NUMBERING SYSTEM Series B K / A M G Rating amps amps amps amps amps amps amps amps Maximum 1800 s 30 s 5s 1 s DIMENSIONS (Dims. are shown for reference only. Consult factory for latest prints) 12.18" (0.480) 1.52" (0.06) 50.80" (2.000) 68.40" (2.693) 29.20" (1.150) 29.20" (1.150) " (0.606) Ø8.60" (0.339) 9.00" (0.354) Bussmann BOLT-IN FUSE PROTECTION Cooper Bussmann Transportation Products Phone: Website: 35

38 Bussmann NOTES 36 Cooper Bussmann Transportation Products Phone: Website:

39 NOTES Bussmann Cooper Bussmann Transportation Products Phone: Website: 37

40 Bussmann Transportation Products Cooper Bussmann P. O. Box St. Louis, Missouri Telephone: Facsimile: Cooper Bussmann Transportation Products 175 Hansen Court Wood Dale, IL Telephone: Facsimile: European Headquarters Cooper Bussmann U.K. Ltd. Burton-on-the-Wolds Leicestershire LE12 5 TH England Telephone: Facsimile: Cooper Bussmann Thomas A. Edison R&D Center (Shanghai)Co.,Ltd. 955 Sheng Li Road Heqing Pudong, Shanghai China Telephone: Facsimile: Cooper Electrical Australia Woodpark Road P.O. Box 2577 Smithfield, Sydney NSW 2163, Australia Telephone: Facsimile: Cooper Bussmann India Ltd. EVR Street, Sedarapet Pondicherry India Telephone: Facsimile: Bussmann do Brazil Ltd. Rodovia Santos Dumont, Km 23 Cruz das Almas Caixa Postal 095 Itu-Sao Paulo Brazil Telephone: Facsimile: Bussmann Transportation Products Authorized Sales Office, Mexico Kruvand and Associates 1202 Richardson Drive, Suite 113 Richardson, Texas Telephone: Facsimile: Bussmann Solutions for the Transportation Industry COOPER BUSSMANN 175 HANSEN COURT WOOD DALE, IL CUSTOMER SATISFACTION PHONE: (888) TECHNICAL SUPPORT PHONE: (888) FAX: (800) WEB SITE: REORDER # 7003 Revised 3/06