fastfax Rock Solid TM Load Centers General Information

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1 General Information FEATURES UL Listed. Straight-in wired, bolt-on main breaker for amps. Neutral and ground bars have multiple 1/0 conductor terminals. Factory installed ground bars on all devices. Type MP-T, MP-HT, and MP-MT can be used as backfed main breakers when used in conjunction with the ECMBR2 hold down kit. All indoor load centers are invertible for bottom feed applciations. Lifetime warranty on Murray installed circuit breakers. Trim mounting tabs free up both hands to drive trim screws. Tangential knock outs eliminate the need for conduit offsets. The side-hinged, outdoor enclosure has a removable door, which can be removed by backing out only one screw. Deadfront pull ring. The neutrals and grounds in the Rock Solid load center are NEC and UL approved to accept multiple ground terminations in one terminal. Hub closure plate provided for outdoor load centers. Load centers do not have fire ratings for use in firewalls. Acceptable main breakers: - 225A load centers MBK225A, MBK200A, MBK150A, all Type MP circuit breakers backfed - 200A load centers MBK200A, MBK150A, all Type MP circuit breakers backfed - 150A load centers MBK150A, all Type MP circuit breakers backfed - 125A load centers MBK125A, MBK100A, all Type MP circuit breakers backfed - 100A load centers MBK100A, all Type MP circuit breakers backfed, with the exception of the 125A Type MP circuit breakers. Excluding AFCI, GFCI, and Surge breakers. NEC is a registered trademark of the National Fire Protection Agency. See the wiring diagram on the panel door for the latest product information. Main Breaker Indoor Load Center Main Breaker Outdoor Load Center fastfax

2 Main Breaker, 1 Phase / 22,000 AIC Short Circuit Current Ratings Murray load centers have UL recognized short circuit current ratings up to 100,000 amps when used with appropriate main or feeder (remote or internal) overcurrent devices. Load center ratings are shown at right. Single phase, main breaker load centers are UL Listed for use with 60/75 o C conductors and accept Murray branch circuit breakers which are also UL Listed for use with 60/75 o C conductors. Type 3R load centers are furnished with a hub opening closure plate. Load Center Short Circuit Current Load Center Internal or Remote Rating Main Rating Main or Feeder (Amps) (Amps) Circuit Breaker Type 10,000 Any Any 22, , 125 MP-HT, MQH 150, 200, 225 MD-HTR, MQH, MPP-HT 42, , 125 MQL 150, 200, 225 MQL 65, , 125 MP-MT, MPP-MT 150, 200, 225 MPP-MT 100, , A, 300V AC, Class T Fuse 150, 200, A, 300V AC, Class T Fuse Remote only. This information is based on use of 10,000 AIC rated branch circuit breakers in load center (MP-T, MH-T, MP-GT, MG). Most series ratings exclude MH-T above 40 amp. Consult device wiring diagram for specific data. Types MQH and MQL may be mounted internal in amp, 3 phase main breaker load centers, and in 225 amp, 1 phase main breaker load centers. Main Breaker Panels, 3-Wire, 120/240V AC or 208Y/120V AC, Bonded Split Neutrals INDOOR ENCLOSURE TYPE 1 OUTDOOR ENCLOSURE TYPE 3R Max. No. 1 Single Catalog Dimensions Inches Catalog Dimensions Inches Amps Spaces Poles Number Length Width Depth Number Length Width Depth CIRCUIT, AMPERES LC1224B /16 4 LW1224B /4 4-1/ LW1632B /4 4-1/ LC2040B / LC2424B / LC3040B / LC1632B / LC2040B /16 4 LW2040B /4 4-1/ LC2440B / LC3040B / LW1224B /4 4-1/ LC1632B / LC2040B /16 4 LW2040B /4 4-1/ LC2040B / LC2040B /16 4 LW3040B /4 4-1/ LC4040B /16 4 LW4040B /4 4-1/2 COPPER BUS LC2040B1100CU / LC2040B1200CU / LC3040B1200CU / LC4040B1200CU /16 4 Standard package quantity equals one. 300 and 400 amp load centers have insulated groundable center-mounted neutrals. Hub provision only. Closure plate included. Panels through 225 amp require HS type hub. Dimensions shown are representative of outside box length, width and depth ( 1/8 ) and do not include allowance for mounting bumps, endwalls, hubs or hardware protrusions. Allow approximately 1-1/4 additional in length and width dimensions for surface or combination overhang. Consult factory for specific details if required.

3 Main Lug, 1 Phase / 22,000 AIC Load centers on this page through 225 amp feature a new split neutral with one bonded and one insulated bar. For service entrance applications, install bonding strap, and use both bars for neutral and ground conductors. For non service entrance applications, do not install bonding strap and use insulated bar for neutral conductors and bonded bar for ground conductors. Main Lug Panels, 3-Wire, 120/240V AC or 208Y/120V AC, Insulated and Bonded Split Neutrals INDOOR ENCLOSURE TYPE 1 OUTDOOR ENCLOSURE TYPE 3R Max. No. 1 Single Catalog Dimensions Inches Catalog Dimensions Inches Amps Spaces Poles Number Length Width Depth Number Length Width Depth CIRCUIT, AMPERES LC1224L /16 4 LW1224L /4 4-1/ LC1632L /16 4 LW1632L /4 4-1/ LC2040L /16 4 LW2040L /4 4-1/ LC3040L / LC1632L / LC2440L / LW1224L /4 4-1/ LC2040L /16 4 LW2040L /4 4-1/ LC2040L / LC2040L /16 4 LW3040L /4 4-1/ LC4040L /16 4 COPPER BUS LC2040L1125CU / LC2040L1200CU / LC3040L1200CU / LC4040L1200CU / LW1224L1225CU /4 4-1/ LC4242L1225CU /16 4 LW4242L1225CU /4 4-1/2 Standard package quantity equals one. 300 and 400 amp load centers have insulated groundable center-mounted neutrals. Hub provision only. Closure plate included. Panels through 225 amp require HS type hub. Dimensions shown are representative of outside box length, width and depth ( 1/8 ) and do not include allowance for mounting bumps, endwalls, hubs or hardware protrusions. Allow approximately 1-1/4 additional in length and width dimensions for surface or combination overhang. Consult factory for specific details if required. Tin-plated copper bus bars.

4 Accessories Catalog Pack Number Description Qty. MAIN BREAKER CONVERSION FOR ROCK SOLID LOAD CENTER KITS MBK100M 100 and 125 amp load centers only 1 MBK125M 125 amp load centers only 1 MBK150M 150, 200 and 225 amp load centers only 1 MBK200M 200 and 225 amp load centers only 1 MBK225M 225 amp load centers only 1 HUBS ECHS075 3/4 Hub 35 ECHS100 1 Hub 35 ECHS /4 Hub 35 ECHS /2 Hub 35 ECHS200 2 Hub 35 ECHS /2 Hub 35 ECHS000 Closure Plate 10 MISCELLANEOUS ECQFL2 Door lock for Rock Solid series load centers (12-42 circuit) 10 LX039M Door lock for old style (Pre 2003) load centers (12-42 circuit) LX100FP Filler plate (1 ) 100 ECMBF125 Main breaker filler plate for Rock Solid load centers (100 and 125 amp only). For amp Rock Solid load centers use two LX100FP s 10 ECLX370FP Filler plate, use opposite type MD breaker (2 ) 5 LX077SF Flush installation cover for 400 amp panel 1 ECTS2 Cover screws, combination cover, new style 50 ECSMK1 Surface mount spacer kit 10 BACKFED MAIN BREAKER HOLD DOWN KITS ECMBR2 For use on Type MP-T, MP-HT, and MP-MT breakers used in the Rock Solid series of load centers (12-42 circuit) 25 ECMBR1 For use on Type MP-T, MP-HT, and MP-MT breakers used in the 2-8 circuit load centers 50 ECLX378N For use on Type MD-T, MD-HT, and MD-MT breakers on old style load centers (12-42 circuit) 10 ECLX386HD For use on Type MP-T, MP-HT, and MP-MT breakers (15-60 amps) for old style (Pre 2003) load centers (12-42 circuit) 10 ECLX387HD For use on Type MP-T, MP-HT, and MP-MT breakers ( amps) for old style (Pre 2003) load centers (12-42 circuit) 10 ECLX388HD For use on Type MP-T, MP-HT, and MP-MT breakers used in old style, circuit load centers, amp (Pre 2003) 25 GROUND BARS AND INSULATED NEUTRAL KITS ECLX068M Ground bar with 4 small connectors, 1-5/8 long 10 ECLX069M Ground bar with 5 small and 2 large connectors, 2-5/6 long 10 ECLX071M Ground bar with 8 small and 3 large connectors, 3-1/2 long 10 ECLX072M Ground bar with 11 small and 4 large connectors, 4-5/8 long 10 ECLX073M Ground bar with 14 small and 5 large connectors, 5-3/4 long 10 ECLX074M Ground bar with 17 small and 6 large connectors, 7 long 10 ECLX075M Ground bar with 20 small and 7 large connectors, 8-1/8 long 10 ECINSNB27 Insulated neutral bar kit with 27 neutral positions, for use on 100 and 125 amp Rock Solid load centers (for use on 21 tall ECINSNB32 Insulated neutral bar kit with 32 neutral positions, for use on 100 and 125 amp Rock Solid load centers (for use on 21 tall ECINSNB33 Insulated neutral bar kit with 33 neutral positions, for use on 150 through 225 amp Rock Solid load centers (for use on 24 tall ECINSNB41 Insulated neutral bar kit with 41 neutral positions, for use on 150 through 225 amp Rock Solid load centers (for use on 30, 36, 39, and 42 tall ECINSNB43 Insulated neutral bar kit with 43 neutral positions, for use on 100 and 125 amp Rock Solid load centers (for use on 24 and 30 tall MBK100M LX387HD HS125M QFL2M MBR2M MBK200M LX100FP LX386HD LX400HD Insulated Neutral Kit LX388HD Catalog Pack Number Description Qty. LUG KITS ECLK1 #1/0 max. lug kit 20 for use on 4-8 circuit devices ECLK2SC #2/0 max. lug kit 50 for 125 amp neutral feeder for 12 circuit and higher devices ECLX384M Circuit breaker 20 enclosure ground lug ECMLK A main lug 10 conversion kit ECMLK A main lug 10 conversion kit

5 Knockout Diagrams and Lug Data 2 K.O. s For 3/8, 1/2, 3/4, 1, 1-1/4 10 K.O. s For 1/2, 3/4, 1 4 1/4 K.O.s 10 K.O. s For 1, 1-1/4, 2, 2-1/2 Torque Table Use copper or aluminum 60/75 o C wire. See circuit breaker markings for wire size and torque requirements. For 100A, 125A Main Breaker and Main Lug Enclosures Terminals Wire Torque A, B 2/0-4 AWG 110 lb.-ins. Neutral and Equipment Ground Bars Small Terminals AWG 20 lb.-ins. 8 AWG 25 lb.-ins. 6 AWG 35 lb.-ins. Large Terminals AWG 35 lb.-ins. 8 AWG 40 lb.-ins. 1/0-6 AWG 45 lb.-ins. LX081M 2/0-6 AWG 50 lb.-ins. Neutral Lug Kit Main Lug/Main Breaker to 45 lb.-ins. Bus Connection (1/4-20 Nut) 12 K.O. s For 3/8, 1/2, 3/4 INDOOR / Circuit 52 K.O. s For 1/2 For 150A, 200A, 225A Main Breaker and Main Lug Enclosures Terminals Wire Torque A, B 300 kcmil - 4 AWG 275 lb.-ins. N 300 kcmil - 4 AWG 250 lb.-ins. G 2/0-6 AWG 90 lb.-ins. Neutral and Equipment Ground Bars Small Terminals AWG 20 lb.-ins. 8 AWG 25 lb.-ins. 6 AWG 35 lb.-ins. Large Terminals AWG 35 lb.-ins. 8 AWG 40 lb.-ins. 1/0-6 AWG 45 lb.-ins. LX081M 2/0-6 AWG 50 lb.-ins. Neutral Lug Kit Main Lug/Main Breaker to 45 lb.-ins. Bus Connection (1/4-20 Nut) 12 K.O. s For 1/2 8 K.O. s For 1/2, 3/4 OUTDOOR / Circuit 4 K.O. s For 1, 1-1/2, 2, 2-1/2 4 K.O. s For 1, 1-1/2 Equipment Ground Bar Terminals are suitable for the following wire combinations. Small Terminals: (1) 14-6 AWG Cu; (1) 12-6 AWG Al; (2) 14 AWG Cu; (2) 12 AWG Cu; (2) 12 AWG Al solid wires. Large Terminals: (1) 14-2 AWG Cu; (1) 12-2 AWG Al; (2) or (3) 14 AWG Cu; (2) or (3) 12 AWG Cu or Al; (2) 10 AWG Cu; (2) or (3) AWG Al; (3) 10 AWG Cu solid when torqued to 50 lb.-in; (3) 10 AWG Cu stranded. Murray Electrical Products Siemens Energy & Automation, Inc Old Milton Parkway Alpharetta, GA Siemens Energy & Automation, Inc. All Rights Reserved. Siemens is a registered trademark of Siemens AG. Murray is a registered trademark of Siemens Energy & Automation, Inc. Product names mentioned may be trademarks or registered trademarks of their respective companies. Specifications are subject to change without notice.