Operation and Installation

Transcription

1 Operation and Installation Nonautomatic Transfer Switches Models: 0 KN-Series Logic: Relay Contactor: mperes U.S.. Plant ISO Registered TP-8 /2a

2 Contents Safety Precautions & Instructions i Ratings Installation Unpacking Lifting Mounting Line Connections uxiliary Connections Engine-Starting Connections Functional Tests Manual Operation Check Voltage Checks Electrical Operation Test Switch Position & Source Indicators Transfer Switch Position Lamps Source vailable Lamps Control Switches Transfer To Normal-Emergency Generator Stop-Start (if equipped) larm Silence Switch (if equipped) Transfer Switch Operation Normal Power Loss Normal Power Return Wiring Diagrams & Drawings Interconnection Diagrams Enclosure Dimensions Contactor Wiring Schematics Wiring Diagrams

3 Safety Precautions Safety Precautions & Instructions Transfer Switch, like any other electro-mechanical device can posepotential dangers to life and limb if improperly maintained or imprudently operated. Thebest safeguards against accident are to be ever mindful of the potential dangers and to always use good common sense. In the interest of safety, some general precautions relating to operation of a transfer switch follow. Keep these in mind. This manual contains several types of safety precautions which are explained below. Examples of various precautionary statements used in this manual are also shown. DNGER Danger is used to indicate the presence of a hazard which will cause severe personal injury, death, or substantial property damage if the warning is ignored. NOTE Note is used to notify people of installation, operation, or maintenance information which is important but not hazard-related. HZRDOUS VOLTGE/ ELECTRICL SHOCK WRNING Hazardous voltage. Can cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (under 600 Volt) WRNING Warning is used to indicate the presence of a hazard which can cause severe personal injury, death, or substantial property damage if the warning is ignored. CUTION Caution is used to indicate the presence of a hazardwhichwill or can causeminor personal injury or property damage if the warning is ignored. DNGER Hazardous voltage. Will cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (600 Volt and above) i

4 WRNING Hazardous voltage. Can cause severe injury or death. Do not open enclosure until all power sources are disconnected. (under 600 Volt) DNGER Hazardous voltage. Will cause severe injury or death. Do not open enclosure until all power sources are disconnected. (600 Volt and above) Hazardous voltage can cause severe injury or death. Disconnectsetfrom loadby opening line circuit breaker or by disconnecting generator output leads from transfer switch and heavily taping ends of leads. If high voltage is transferred to load during test, personal injury and equipment damage may result. The GENERTOR SFEGURD REKER MUST NOT E USED IN PLCE OF LINE CIRCUIT REKER! Hazardous voltage can cause severe injury or death. The Transfer Switch is energized; proceed with care! High voltage can cause personal injury, damage equipment, or leadtofuture failures. Remove watch, rings, and jewelry that can cause short circuits. Hazardous voltage can cause severe injury or death. The Transfer Switch is energized; proceed with care! High Voltage can cause personal injury, damage equipment, or leadtofuture failures. Remove rings, watches, and jewelry that can cause short circuits. This test should be done only by a qualified electrician. Follow manufacturer s instructions when operating tester. Hazardous voltage can cause severe injury or death. To prevent the possibility of electrical shock, de-energize the normal power sourcetobeconnectedtothetransfer Switch before making any line or auxiliary connections. Hazardous voltage can cause severe injury or death. De-energize both normal and emergency power sources before proceeding. Move Generator Master Switch on controller to OFF position and disconnect battery negative (--) before working on transfer switch! Turn the transfer switch selector switch to the OFF position. ii Safety

5 Safety Precautions Hazardous voltage can cause severe injury or death. Disconnect inner panel harness at in-line connector. This will de-energize circuit board and logic circuitry, but allow transfer switch to continue to supply utility power to necessary lighting and equipment. Hazardous voltage will exist if any accessories mounted to inner panel are NOT wired through and de-energized by harness separation. Such accessories may be at line voltage. Hazardous voltage can cause severe injury or death. Keep everyone away from the set and take precautions to prevent unqualified personnel from tampering. Have the set and electrical circuits serviced only by qualified technicians. Wiring should be inspected at the recommended interval shown in the service schedule -- replace leads that are frayed or in poor condition. Do not operate electrical equipment when standing in water, on wet ground, or when your hands are wet. Hazardous voltage can cause severe injury or death. Disconnect harness plug before installing any accessories involving connection to transformer assembly primary terminals. Terminals are at line voltage! NOTE HRDWRE DMGE! Transfer switchmay make use of both merican standard and metric hardware. e sure to use the correct size tools to prevent rounding of bolt heads and nuts. NOTE manual operator handle is provided on the Transfer Switch for maintenance purposes only. ReturntheTransfer SwitchtotheNormal position. Remove manual operator handle (if used) andstoreit onthe Transfer Switch inthe place provided when service is completed. iii

6 Installation Ratings The rating label is attached to the transfer switch. Data relating to each specific switchis included on the nameplate. Unit installation must not exceed the rated capacity of the switch as shown on the nameplate. For location of the transfer switch in the system see Figure 1. The switchshould beas close as possible to the critical electrical loads connected to it. Transfer Switch Normal Source Emergency Source Loads Figure 1. Transfer Switch Location Installation Kohler transfer switches are factory wired and tested. Installation requires mounting, connection of utility, load, emergency cables and any auxiliary contact/control circuits. Do not remove protective packing until ready for complete installation. Protect switch at all times from excessive moisture, construction grit, and metal chips. Unpacking Carefully unpack or uncrate switch and check for damage. Report any damage immediately to the Kohler Distributor. Lifting ny lifting devices must be attached to the switch s mounting holes or lifting eyes only. Do 1

7 asco not lift the switch at any other points. Protect arc barriers from impact at all times. Mounting ll enclosed switches have the control panel mounted on the cabinet door. For open-type switches, mount the control panel to the right of the transfer switch. WRNING Hazardous voltage. Can cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (under 600 Volt) Hazardous voltage can cause severe injury or death. De-energize both normal and emergency power sources before proceeding. Move the generator master switch on the controller to the OFF position and disconnect battery negative (--) before working on the transfer switch! DNGER Hazardous voltage. Will cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (600 Volt and above) Hazardous voltage will cause severe injury or death. De-energize both normal and emergency power sources before proceeding. Move the generator master switch on the controller to the OFF position and disconnect battery negative (--) before working on the transfer switch! Line Connections Wiring Diagrams are furnished at the back of this manual. Interconnection diagrams (-pole and 2-pole) are furnished to show actual lead wiring. ll conductors should enter enclosure adjacent to the transfer switch terminals. Protect the transfer switch from metal chips and construction grit at all times. Standard terminal lugs are solderless screw type and will accept the conductor sizes listed on installation drawings. Do not run cables behind the transfer switch. Cables can be bundled to the side of the switch. Maintain proper electrical clearance between the live metal parts and grounded metal. Use cablespacers providedon 0, 10 and 10-mp, 600-Volt class switches. Spacers are not required on 20-Volt class switches. On mp switches, remove the cover shields from the switch to connect power cables to the Emergency lugs and switched neutral lugs (ccessory 6). Connect source and load conductors to clearly marked contactor terminal lugs. Remove surface oxides from conductors by cleaning with a wire brush. When aluminum conductors are used, apply oxidation inhibitor to conductors. Tighten lugs and carefully wipe 2 Installation Procedures

8 Installation away excess oxidation inhibitor. Tighten cable lugs to the torque specified in the following table. Note pplication of oxidation inhibitor is required for all aluminum terminations. Contactor Rated mps Tightening Torque inch pounds (Nm) (.6) Hazardous voltage can cause death or severe injury! On mp switches, reinstall the cover shields over the emergency lugs and overlapping neutral (accessory 6) lugs. If these shields are not in place whenthe switch is energized, the lugs will be exposed. Touching these energized lugs can result in shock, burns, or death. DNGER (22.6) (6.8) (6.) Suitable for us ar Lugs Table: Tightening Torque Values for Lug Connectors WRNING Hazardous voltage. Can cause severe injury or death. Do not open enclosure until all power sources are disconnected. (under 600 Volt) Hazardous voltage. Will cause severe injury or death. Do not open enclosure until all power sources are disconnected. (600 Volt and above) Hazardous voltage will cause death or severe injury! On mp switches, reinstall the cover shields over the emergency lugs and overlapping neutral (accessory 6) lugs. If these shields are not in place whenthe switch is energized, the lugs will be exposed. Touching these energized lugs will result in shock, burns, or death.

9 asco Figure 2. In-Line Disconnect Plug ll internal connections are made at the factory. The transfer switch and the control panel each have their own wire harness. The two harnesses are to be joined together by the in-line disconnect plug. Plug halves are separated for shipment. The plug must be engaged after installation is completed. See Figure 2. uxiliary Connections Connect auxiliary circuit wires to appropriate control panel terminals as shown on the appropriate diagram (see contactor wiring diagrams in the Wiring Diagrams section). ny auxiliary contact connections are customer specified and should be shown on the installation s plans. Standard auxiliary contacts include one set closed in the normal position and one set closed in the emergency position. dditional contacts of both types are optional. Note any optional accessories that may have been furnished on this switch, and make auxiliary connections if necessary. Installation Procedures

10 Installation Engine-Starting Connections The engine-starting connections are located on the transfer switch contactor. red decal near the contactor points to engine-start terminals. Engine-start terminal locations are also described on interconnection diagrams in this book. Connect engine-start signal wires to terminals and on thecontactor. SeeFigure. Figure. Typical Engine Starting Connections mp Contactor Shown Functional Tests Functional Testing consists of three parts: manual operation, voltage checks and electrical operation. Caution Perform these checks in the order given, in order to avoid damaging the switch. Read and understand all instructions on installation drawings and labels affixed to the switch. Note any optional accessories that have been furnished with the switch and review their operation. First, check the transfer switch nameplate for rated voltage. It should be the same as normal line voltage and emergency line voltage as indicated on the generator set nameplate. Manual Operation Check 1. Perform the manual operation test before attempting to electrically test the automatic transfer switch. The intent is to verify that the contactor and all auxiliary switches operate smoothly and that there is no damage from shipping or installation. 2. Open both the normal and emergency source circuit breakers.

11 asco. Separate the contactor control in-line disconnect plugs if you have not already done so. See Figure 2.. permanently-mounted handle is provided on mp switches. detachable manual operator handle is provided on mp switches. Manual operator handles are to be used for maintenanceand inspectionpurposes only. Select the appropriate switch amperage size below and follow directions for installing the handle. See Figures. through. NOTE manual operator handle is provided on the transfer switch for maintenance purposes only. Return the transfer switchto thenormal position. Remove manual operator handle (if used) and store it on the transfer switch in the place provided when service is completed. Figure. Operating Handle, mp. For mp Switches: Insert manual handle as shown in Figure. Figure. Operating Handle, mp. For mp Switches: Operate -point handle as shown in Figure. 6 Installation Procedures

12 Installation Figure 6. Operating Lever, mp. For mp Switches: Place the operating handle onto the pivot shaft extension as shown in Figure 6. Figure. Operating Lever, mp. For mp Switches: Insert manual handle into hole provided in rotating weight. See Figure.. Move the installed handle in the direction shown to manually operate the transfer switch. The switch should operate smoothly and without binding. Return the transfer switch to the normal position. Remove manual operator handle and store it on the transfer switch in the place provided.

13 asco WRNING Hazardous voltage. Can cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (under 600 Volt) Hazardous voltage can cause severe injury or death. The transfer switch is energized; proceed with care! High voltage can cause personal injury, damage equipment, or lead to future failures. Remove watch, rings, andjewelry thatcan causeshort circuits. DNGER Voltage Checks 6. Close the normal source circuit breaker.. Use an accurate voltmeter to check for proper voltage and phase rotation (phase-to-phase and phase-to-neutral voltages) at the contactor s normal-source terminals. 8. Close the emergency-source circuit breaker.. Manually start the generator set using the engine control switch on the generator set controller. 10.Use an accurate voltmeter to check for proper voltage and phase rotation (phase-to-phase and phase-to-neutral voltages) at the contactor s emergency-source terminals. 11. If necessary, adjust the generator voltage regulator following the generator set manufacturer s instructions. Check phase rotation; it should be the same as that of the normal source. 12.Shut down the generator set using the engine control switch on the generator set controller. Hazardous voltage. Will cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (600 Volt and above) Hazardous voltage will cause severe injury or death. The transfer switch is energized; proceed with care! High voltage will cause personal injury, damage equipment, or leadto future failures. Remove watch, rings, and jewelry that can cause short circuits. 8 Installation Procedures

14 Installation Electrical Operation Test 1.Reconnect the contactor control in-line disconnect plugs. See Figure 8. The transfer switch should be in the normal position. The following procedure will check the electrical operation of the transfer switch. 1.Open the normal source circuit breaker to start the generator set, or start the generator set at the generator set controller. See Figure. The generator set should start after any engine-start time delay set in the transfer switch and/or generator set controller has completed timing. 1.llow the generator set to stabilize at its rated voltage. Figure 8. In-Line Disconnect Plug

15 asco TRNSFER SWITCH POSITION NORML EMERGENCY SOURCE VILLE NORML EMERGENCY 16.Move the TRNSFER-TO switch to the EMERG. position. The transfer switch should operate to the emergency position with the generator set producing at least 0% of its rated voltage. 1.Reclose the normal-source circuit breaker. 18.Move the TRNSFER-TO switch to the NORML position. The transfer switch should operate back to the normal position. 1.Shut down the generator set using the engine control switch on the generator set controller. The generator set will continue to run until any optional cool-down period set in the generator set controller completes timing. This completes functional tests of the transfer switch. TRNSFER TO NORML EMERG. GENERTOR STOP STRT Warning To Insure gainst Shock Or urns, Disconnect ll Supply Sources efore Working On This Switch. LRM SILENCE Figure. Transfer Switch Control Switches 10 Installation Procedures

16 Operation Switch Position & Source Indicators External control switches and indicators are shown in Figure 10. Transfer Switch Position Lamps Normal Lamp (green): Lights to show that the Transfer switch is in the normal position with the normal source available. Emergency Lamp (red): Lights to show that the transfer switch is in the emergency positionwith theemergency sourceavailable. Source vailable Lamps Normal Lamp (white): Lights to show that normal source voltage is present, but not necessarily at proper voltage and frequency. Emergency Lamp (white): Lights to show that emergency source voltageis present, but not necessarily at proper voltage and frequency. Control Switches Transfer To Normal-Emergency Normal Position: signals control to cause transfer to normal source. voltage detector circuit will allow transfer only if voltage is at least 0% of nominal. Emergency Position: signals control to cause transfer to emergency source. voltage detector circuit will allow transfer only if voltage is 0% of nominal. TRNSFER SWITCH POSITION NORML NORML SOURCE VILLE NORML STOP TRNSFER TO GENERTOR LRM EMERGENCY EMERG. Warning To Insure gainst Shock Or urns, Disconnect ll Supply Sources efore Working On This Switch. EMERGENCY STRT SILENCE Figure 10. Transfer Switch Control Switches 11

17 asco Generator Stop-Start (if equipped) Stop Position: Opens the generator set remote-start circuit, signaling the generator set to shut down, provided that the normal source is available with at least 0% of rated voltage. The generator set will continue to run until any cool-down period set in the generator set controller has completed timing. Start Position: Closes the generator set remote start circuit, signaling the generator set to start. larm Silence Switch (if equipped) The transfer switch may be equipped withan optional audible alarm that sounds when the transfer switch is in the emergency position. Moving the alarm silence switchto thesilence position will shut off the alarm. WRNING Hazardous voltage. Can cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (under 600 Volt) Hazardous voltage can cause severe injury or death. De-energize both normal and emergency power sources before proceeding. Move the generator master switch on controller to OFF position and disconnect battery negative (--) before working on the transfer switch! DNGER Hazardous voltage. Will cause severe injury or death. Disconnect power sources before servicing. arrier must be installed after adjustments, maintenance, or servicing. (600 Volt and above) Hazardous voltage will cause severe injury or death. De-energize both normal and emergency power sources before proceeding. Move the generator master switch on controller to OFF position and disconnect battery negative (--) before working on the transfer switch! Transfer Switch Operation Normal Power Loss 1. Upon loss of normal power, the white normal-source-available lamp will go out. If the transfer switch is not equipped with an engine-start time delay (TDES accessory K-02), the generator set must be started manually. If necessary, start the generator set at the generator set controller or a remote engine control switch. If the transfer switch is equipped with an engine-start timedelay, thegenerator set will be signaled to start. Note that any engine-start time delay set in the generator set s controller must complete 12 Transfer Switch Operation

18 Operation timing before the generator set will crank and start. Engine-start time delays available in the transfer switch have possible settings shown in the following table. ccessory Number K-02- K-02-E K-02-F K-02-G K-02-H Setting Range --20 Seconds Seconds, fixed Seconds Seconds --0 Minutes Table: Engine-Start Time delay Setting Ranges 2. The white emergency-source-available lamp will light when emergency source voltage is available. llow the generator set to reach at least 0% of its rated voltage.. Move the transfer-to switch to the EMERG. position. voltage-detector circuit will allow transfer to emergency only if generator voltage is at least 0% of nominal. When the transfer switch operates to the emergency position, the red transfer switch position lamp will light and load will be connected to the generator. Normal Power Return 1. The white normal-source-available lamp will light when normal power returns. Check normal-sourcemeters (ifequipped) to see that normal-source voltage and frequency are at least 0% of nominal. 2. When the normal source voltage has stabilizedat aminimum of0% ofnominal, move the transfer-to switch to the NORML position.. voltage-detector circuit will allow transfer to normal only if normal source voltage is at least 0% of nominal. When the transfer switch operates to the normal position, the greentransfer switchposition lamp will light and load will be connected to the normal source.. If the transfer switch is equipped with an engine-start time delay, the generator set will be signaled to stop. If not, stop the generator set using the switch at the generator set controller or a remote engine control switch. Note that any optional engine-cooldown time delay set in the generator set s controller must complete timing before the generator set will stop. 1

19 asco Notes 1 Transfer Switch Operation

20 Wiring Diagrams & Drawings Wiring Diagrams & Drawings Interconnection Diagrams mp,1-phase, 2-wire Interconnection Diagram mp,1-phase, -wire Interconnection Diagram mp, -phase & -wire Interconnection Diagram mp, -phase, -wire Interconnection Diagram DV- DV- DV-6 DV-268 Enclosure Dimensions Enclosure Dimensions mp DV-28 sheet 1 Enclosure Dimensions mp DV-28 sheet 2 Enclosure Dimensions mp DV-28 sheet Enclosure Dimensions mp DV-8 sheet 1 Enclosure Dimensions mp DV-8 sheet 2 Contactor Wiring 2-Pole Contactor Wiring 28 sheet 1 -Pole Contactor Wiring 28 sheet 2 Schematics 1-Phase, 2-Pole, 2 or wire 20 1-Phase, -Pole, -Wire 206 -Phase, -Pole, -Wire with overlapping neutral 20 Wiring Diagrams NEM NEM R &

21 Load L1 L2 LL1 EL1 EL2 NL1 NL2 L1 L2 Commercial or Normal Source LL2 Contactor in Transfer Switch Engine Start Terminals in Generator Control ox (L1) (LO) Generator Connection ox Note: Engine Start Terminals & re Located on the Contactor mp - - Lower Left Side mp - - bove Ts Coil mp - - Upper Right Hand Corner 1-Phase, 2-Wire Diagram, Interconnection DV-

22 Neutral Neutral L1 Load L2 LL1 LL2 EL1 EL2 Contactor in Transfer Switch NL1 NL2 L1 L2 Commercial or Normal Source LO NLO LLO ELO LO Neutral Engine Start Terminals In Generator Control ox (L1) (L2) (LO) Generator Connection ox Note: When Overlapping Neutral is Used, Wire Neutral Per Dotted Lines. Engine Start Terminals & re Located on the Contactor mp -- Lower Left Side mp -- bove Coil mp -- Upper Right Hand Corner 1-Phase, -Wire Diagram, Interconnection DV- -

23 Neutral Neutral Load L1 L2 L L E E EC N N NC L1 L2 L Commercial or Normal Source L LC LO NLO LLO ELO Contactor in Transfer Switch LO Neutral Engine Start Terminals In Generator Control ox (L1) (L2) (L) Generator (LO) Connection ox Note: When Overlapping Neutral is Used, Wire Neutral Per Dotted Lines. Engine Start Terminals & re Located on the Contactor mp -- Lower Left Side mp -- bove Coil mp -- Upper Right Hand Corner -Phase, & -Wire Diagram, Interconnection DV- -6

24 Neutral Neutral L1 L2 LL1 LL2 EL1 EL2 Load L NL1 NL2 L1 L2 Commercial or Normal Source EL NL L LL LO NLO ELO LLO Contactor in Transfer Switch LO Neutral Engine Start Terminals in Generator Control ox (L1) (L2) (L) Generator (LO) Connection ox Note: When Overlapping Neutral is Used, Wire Neutral Per Dotted Lines. Engine Start Terminals & re Located on the Contactor mp -- bove Coil mp -- Lower Left Hand Corner mp -Phase, & -Wire Diagram, Interconnection DV--268

25 .06 (10.) WIDTH OF SLOT (NEM 1 ONLY). (.0) TYP (6).06 (10.) DI. HOLE (NEM R ONLY) Typ.. (18.).8 (16.) Typ.. (08) 2.00 (6) NEM 1 Only 6.0 (2) NEM R Only.6 (6) NEM R Only C.1 (1.) DI. HOLE (NEM 1 ONLY) L L 1.8 () (NEM R ONLY) L 1.1 () RTING 0,0,10 MP 10 MP 1.8 (6) 1.2 (62) 2.2 (6) 1.0 () 1.88 (0) C 1.0 (68) 1.8 (0) L (2) 12.0 (12) L 12.6 (16) 1.22 (61) L 1.1 () 1.18 (86) Switch Rating (MPS) Sizes Of Screw Type Terminals For External Power Connections Range Of L- -CU Wire Size One #1 To #6 WG One #1 To 1/0 WG One #1 To 2/0 WG One #8 To /0 WG Notes: 1. Numbers In Parentheses re Millimeters 2. Dimensions re For Reference Only. Enclosure Dimensions mp DV- -28a

26 .06 (10.) WIDTH OF SLOT (NEM 1 ONLY). (.0) TYP..8 (111.0) Typ (2).1 (118) 8.0 () NEM 1 Only.1 (1.) DI. HOLE (NEM 1 ONLY) 11. (28) 1. (06) 1.0 (8) Note: 1. Numbers In Parentheses re Millimeters. 2. Dimensions re For Reference Only (6) 2.2 (6) 2.12 () 1.62 (1).06 (10.) DI. HOLE (NEM R ONLY) (0) 18.2 (6) 2.62 (600).2 (108).2 (108) 18.2 (6) Sizes Of Screw Type Terminal For External Power Connections Switch Rating (MPS) Range Of l- -Cu Wire Size Two #1/0 WG TO 20 MCM Or One # WG TO 600 MCM 1.0 (1) 16. (2) (NEM R Only). Typ. (18.).0 (121) NEM R Only.6 (12) NEM R Only Enclosure Dimensions NEM mp DV-28b

27 .06 (10.) Width Of Slot (NEM 1 Only).12 (10) Typ (122) NEM 1 Only 6.2 (162).1 (1.) DI. HOLE (NEM 1 ONLY) Size Of Screw Type Terminal For External Power Connections Switch Rating (mps) 600 & 800 Range Of l- -cu Wire Size Three #2 wg To 600 Mcm. (8.) Typ. 2.0 (820) 2.2 (61).06 (10.) DI. HOLE (NEM R ONLY) 18. (6) 22.8 (68) 20.8 (18) 10.1 (28) 1.1 (6) 20.6 (2) Notes: 1. Numbers In Parentheses re Millimeters. 2. Dimensions re For Reference Only. 0. Typ. (18.) 6.6 (126 ) NEM R Only 66.0 (168) NEM R Only 1.0 (00) 21.0 () (NEM R ONLY) mp Transfer Switch Enclosure Mounting DV-28c

28 6.2 (11) TYP 1.62 (8).8 (10) Typ 18.8 () 0.00 (2286) Typ 1.2 () Typ.0 (10) Typ 2. (6) Typ 20.6 (2) (2).12 (181).28 (10) TYP 2 & Pole Without Overlapping Neutral.68 (1) DI. MOUNTING HOLES 8 PLCES 6.00 (12) 1.0 (68).2 1. (80) () 2. (1086) ottom View 11.8 (01) LOD.06 (12) Typ.68 () Typ.06 (12) Typ 2.00 (8).2 (108) OVERLPPING NEUTRL 2.2 () 0.0 (102).62 (11) 1. () LN.8 (10) 2.00 (6) 2.2 (616) TYP.12 (181).06 (8) 11.8 (01) LOD.28 (10) TYP 2 & Pole With Overlapping Neutral 28.6 (28) Ref.20 (12) Typ 0.00 (62).0 (110) Typ 28.0 (12) Typ 22. (8) Typ NOTES: NEM Type General Purpose, Indoor, Floor Supported. 1. Free Standing, Frame Construction. 2. Removable Doors, Key Locking Handle. Two Doors With Single Center Latch.. Sides, Top, nd ack Removable. Open ottom.. Provisions For Lifting.. Enclosures Constructed In ccordance With UL Standard 08 (nsi C ) s Referenced In UL Standard Use Operator s Manual. Refer To This Publication Prior To Installation nd Operation Of The Switch. Dimensions In ( ) re Millimeter Equivalents. Size Of UL Listed Solderless Screw Type Terminals For External Power Connections. Four # 2 WG To 600 MCM L- -CU Wire. External Handle Mechanism (Optional) EMERGENCY 0.12 (101) Typ 1.00 (0) NORML 2.0 (6) 26.0 (6) mp 2 & Pole With Overlapping Neutral DV-8a

29 D E C L E 1.00 (2) TYP. SEE DETIL C L DETIL 2.00 (1)TYP..00 (12).06 (10) DI. HOLES 8 PLCES 26.1 (66) H EMERGENCY GROUND US 10. (26) EMERGENCY. (1) DI. 1 HOLE 1. ().62 (16).00 (102) 1600/2000 MP 2.2 ().88 (22) 2.00 (1).00 (6).0 (10) DI. HOLES 0.00 (2286) 6.00 (1) 1.00 (2) 6.2 (2) EXTERNL HNDLE MECHNISM (OPTIONL) 2.0 (0) Ref (112).21 (108) 1.6 (8) 12.0 (18) LOD 2.00 (1) NORML NN LN EN MP US PLTES G F. (). () 1. (1) 8.6 (18) LOD NORML NN LN EN MP US PLTES G F. (). () 1. (1) 8.8 (18) 1.00 (2) 1.00 (2).00 (6) 2.0 (6).00 (12) 1.00 (2) 2.0 (6).00 (12).68 X 1.00 (1 X 2) OROUNDS 000 MP C 8.00 (121) OVERLPPING NEUTRL CCESSORY NOTE: NORML & EMERGENCY US REVERSED S SHOWN..68 (1) DI. MOUNTING HOLES 8 PLCES 6.00 (1) 6.00 (12) 26.2 (66). (118) MP SIZE 1600 & NOTES: 8.2 (2) 8.2 (1226) 8.2 (1226) 2.00 (686) 0.00 (62).00 (1) C.6 (1).12 (22).62 (11) DIMENSIONS D.0 (11).00 (12) 6.0 (16) E.00 (22) (2) 1.00 (0) F.6 (1).1 (182).1 (182) NEM Type General Purpose, Indoor, Floor Supported G (2) 11 (28) 11 (28) H 6.00 (12) (2) 1.00 (0).68 X 1.00 (1X2) OROUNDS 1.0 (8).00 (102) 8.00 (20).00 (102).00 (12) 1.0 (8) 1.0 (8) 8.00 (20) 1. Free Standing, Frame Construction. 2. Removable Doors, Key Locking Handle. Single Door Hinged 000 MP On Right With Single Center Latch For mps.. Sides, Top, nd ack Removable. Open ottom. VIEW - - EXPLODED VIEWS. Provisions For Lifting.. Enclosures Constructed In ccordance With UL Standard (12) 1. (). (88) 160 (1) (NSI C ) s Referenced In UL Standard The Transfer Switch Unit Is Mounted On The Inside ack Surface nd The ccessory Control Panel Mounted On The Inside Door Surface. oth Units re Terminated y Quick Disconnect Plug Located On The Inside Of The Door.. Use Operator s Manual. Refer To This Publication Prior To Installation nd Operation Of The Switch. Enclosure Dimensions mp Sheet 2 of 2 Dimensions In ( ) re Millimeter Equivalents. DV-8b

30 PIN PIN 2 PIN PIN 1 PIN PIN 6 PIN 22 PIN 10 T T COIL CLERING CONTC PIN 21 PIN 1 PIN 1 PIN 8 PIN COIL CKT EL1 NL1 1 PIN 12 PIN PIN 1 PIN 16 LL1 22 EL2 NL2 LL2 Load Emergency CC. NL0 LL PIN 18 PIN 1 EL uxiliary Contacts Normal PIN PIN 2 PIN PIN 6 PIN 12 PIN COIL-CLERING CONTC PIN 1 PIN PIN 22 PIN 21 PIN 10 T T PIN PIN 8 COIL CKT 1 12 NL1 PIN 1 PIN 16 UXILIRY CONTC PIN 1 PIN 1 EL1 1 LL1 EL PIN 18 PIN 1 NL2 LL2 Load Emergency CC. LL0 NL0 EN0 Normal PIN PIN 2 PIN PIN 6 PIN 12 PIN COIL CLERING CONTC PIN 10 PIN PIN PIN 1 PIN 1 COIL CKT PIN 1 PIN 16 PIN PIN 1 CC. LL0 EN0 NL0 EL1 20 NL1 1 LL1 Load Normal EL2 22 NL2 T T LL2 PIN PIN 8 Emergency PIN 18 PIN UXILIRY CONTC 0, 0, 10 & 10-mp 22, 260 & 00-mp 600 & 800-mp PIN PIN 2 PIN PIN 6 PIN 12 PIN T T COIL CLERING CONTC PIN 10 PIN 22 1 PIN PIN 8 COIL CKT PIN 1 PIN 16 PIN PIN 1 LL0 CC. PIN 1 PIN 1 PIN 21 EL0 NL0 UXILIRY CONTC EL1 NL & 1200-mp Emergency 1 LL1 Normal 22 EL2 NL2 LL2 Load PIN 18 PIN 1 PIN 10 PIN T T UXILIRY CONTC PIN 8 PIN 10 PIN 1 PIN 1 PIN Load PIN 1 PIN 18 PIN NL1 PIN 12 PIN Emergency EL1 EL2 LL PIN COIL CLERING CONTC 8 PIN 1 PIN 16 PIN PIN 1 PIN PIN 2 Normal COIL CKT 1600, 2000, 200, 000, 000-mp NL2 LL2 22 CC. NL0 EL0 LL T Disconnect Plug T Notes: Switch Shown in Normal Position Stranded #20 Wires on 0--10a nd Stranded #16 wg on a T & T are Engine Start Terminals Contactor Wiring Diagram 2-Pole Sheet 1 of 2 28a

31 PIN PIN 2 PIN PIN 1 PIN PIN 6 PIN 22 PIN 10 T T COIL CLERING CONTC PIN 21 PIN 1 PIN 1 PIN 8 PIN COIL CKT E N 1 PIN 12 PIN PIN 1 PIN 16 L 21 E N 2 L 1 22 EC NC PIN 1 NN LN 1 11 PIN 18 PIN 1 EN CC UXILIRY CONTC LC Load Emergency Normal PIN PIN 2 PIN PIN 6 PIN 12 PIN COIL CLERING CONTC PIN 1 PIN PIN 22 PIN 21 PIN 10 T T PIN PIN 8 COIL CKT 1 12 UXILIRY CONTC E N PIN 1 PIN 16 PIN 1 PIN 1 L E N L EC PIN 18 PIN 1 NC LC Load Emergency PIN 1 CC. NN LN EN Normal PIN PIN 2 PIN PIN 6 PIN 12 PIN COIL CLERING CONTC PIN 10 PIN PIN PIN 1 PIN 1 COIL CKT PIN 1 PIN 16 PIN PIN 1 CC. EN LN NN N L N Load L E E EC Emergency Normal 22 NC T T LC PIN 1 PIN 18 PIN PIN PIN 8 UXILIRY CONTC 0, 0, 10 & 10-mp 22, 260 & 00-mp 600 & 800-mp PIN PIN 2 PIN PIN 6 PIN 12 PIN T T COIL CLERING CONTC PIN PIN 8 PIN 10 PIN 22 1 COIL CKT CC. EN LN PIN 1 PIN 16 PIN PIN 1 NN UXILIRY CONTC PIN 1 PIN 1 PIN 21 E E EC Emergency 1 L L 22 PIN 1 LC Load PIN 18 PIN 1 N N NC Normal PIN 10 PIN T T UXILIRY CONTC PIN 8 PIN 10 PIN 1 PIN 1 PIN PIN 1 Load PIN 1 PIN 18 PIN N PIN 12 PIN Emergency E E EC 1 L L PIN COIL CLERING 8 CONTC PIN 1 PIN 16 PIN PIN 1 PIN PIN 2 N Normal COIL CKT NC LC 22 CC. NN EN LN T T Disconnect Plug - -6 Notes: Switch Shown In Normal Position Stranded #20 Wires on a and Stranded #16 WG on T & T are Engine Start Terminals 1000 & 1200-mp 1600, 2000, 200, 000, 000-mp Contactor Wiring Diagram -Pole Sheet 2 of 2 28b

32 TO LOD NOT USED ON 2 WIRE SYSTEMS NN LN EN TO NORML SOURCE NC N 22 LC 20 L EC E TO EMERGENCY SOURCE P T6 P P P TO TERM. 8 TO TERM. P P1- - NT N1 N1 N N P1- -1 P- - NR P P- -6 NR P- -2 P1- - COIL R P1- -2 P NR ER P- - P NR 1 6 ER P- -1 P P1- -6 P1- - P1- -1 P P NT1 NT2 J ET2 NT GR ET R 6 ET TDES W 1 W E1 E1 E2 E2 ET LEGEND R - - RIDGE RECTIFIER C# - - CPCITOR ER - - EMERGENCY RELY ET - - EMERGENCY TRNSFORMER D# - - DIODE NR - - NORML RELY NT - - NORML TRNSFORMER P#- -- -# - - PLUG & SOCKET # W/PIN DESIGNTOR R# - - RESISTOR SW - - SWITCH T# - - TERMINL LOCK - - TRNSFER SWITCH - - INTERNL COMPONENT CONNECTIONS - - SSOCITED RELY SOCKET TERMINL - - TERMINL LOCK TERMINL # - - TERMINL LOCK (TRNSFORMER) - - TERMINL LOCK (MIN LOGIC TRNSFORMER TERMINLS) - - TERMINL LOCK (MIN LOGIC) - -# LED NUMER - - CONNECTOR - - CM OPERTED CONTCT 60 R1 + Z1 R2 C1 + R1 R R2 + TDES (OPTIONL) TO T TO T6- - CONNECT JUMPER FOR TDES VOLTGE DETECTOR P1- -8 P1- - R 8 R CONTCTOR TERMINL LOCK SCR R6 NR N N NORML D1 ER E SW E EMERG. D2 ENGINE STRT ll contacts shown with transfer switch in Normal position. 10 Schematic Diagram 1-phase, 2-pole, 2- or -wire 20

33 TO LOD NC 22 LC EC TO NORML SOURCE NN N 1 20 LN L EN E TO EMERGENCY SOURCE COIL P P1- -1 P N1 P P NT T TO TERM. 8 TO TERM. NT1 60 TDES P1- - N N1 N NT2 NT P1- -1 P P GR W P- -6 NR NR P P- -2 P P1- -2 P R P NR - - NR 1 16 P1- -1 J ER 6 ER G R P- - W P- -1 P P P1- -6 P1- - E1 E E1 E ET ET2 ET1 ET CONNECTOR LEGEND R - - RIDGE RECTIFIER C# - - CPCITOR ER - - EMERGENCY RELY ET - - EMERGENCY TRNSFORMER D# - - DIODE NR - - NORML RELY NT - - NORML TRNSFORMER P#- -- -# - - PLUG & SOCKET # W/PIN DESIGNTOR R# - - RESISTOR SW - - SWITCH T# - - TERMINL LOCK - - TRNSFER SWITCH - - INTERNL COMPONENT CONNECTIONS - - SSOCITED RELY SOCKET TERMINL - - TERMINL LOCK TERMINL # - - TERMINL LOCK (TRNSFORMER) - - TERMINL LOCK (MIN LOGIC TRNSFORMER TERMINLS) - - TERMINL LOCK (MIN LOGIC) - -# LED NUMER - - CM OPERTED CONTCT R1 + Z1 R2 C1 + R1 R R2 + TO T6- - TDES (OPTIONL) 8 TO T6- - CONNECT JUMPER FOR TDES VOLTGE DETECTOR P1- -8 P1- - R SCR 8 R R6 CONTCTOR TERMINL LOCK NR D1 ER D2 ENGINE STRT N N NORML SW E E EMERG. ll contacts shown with transfer switch in Normal position. 10 Schematic Diagram 1-phase, -pole, -wire 206

34 TO LOD NN LN EN TO NORML SOURCE NC N 2 LC L 1 EC E TO EMERGENCY SOURCE N L E P T6 P P1- -1 P P P TO TERM. 8 TO TERM. N1 N2 N1 N2 NT NT2 P1- -1 P- - NR P P- -6 NR P- -2 P1- - COIL R P1- -1 P P1- -1 P P- - NR ER NR 1 P- - P ER P- -1 P P1- -1 P1- - E1 E2 E1 E2 ET ET2 LEGEND R - - RIDGE RECTIFIER C# - - CPCITOR ER - - EMERGENCY RELY ET - - EMERGENCY TRNSFORMER D# - - DIODE NR - - NORML RELY NT - - NORML TRNSFORMER P#- -- -# - - PLUG & SOCKET # W/PIN DESIGNTOR R# - - RESISTOR SW - - SWITCH T# - - TERMINL LOCK - - TRNSFER SWITCH - - INTERNL COMPONENT CONNECTIONS - - SSOCITED RELY SOCKET TERMINL - - TERMINL LOCK TERMINL # - - TERMINL LOCK (TRNSFORMER) - - TERMINL LOCK (MIN LOGIC TRNSFORMER TERMINLS) NT1 TDES NT GR W J 116 R W 6 ET1 - - ET G1 - - TERMINL LOCK (MIN LOGIC) - -# LED NUMER - - CONNECTOR - - CM OPERTED CONTCT 61 R1 + Z1 R2 C1 + R1 R R2 + TDES (OPTIONL) TO T6- - TO T CONNECT JUMPER FOR TDES R 2 1 VOLTGE DETECTOR 8 R P1- -8 CONTCTOR TERMINL LOCK P1- - SCR R6 NR D1 ER D2 ENGINE STRT N N SW NORML E E EMERG. ll contacts shown with transfer switch in Normal position. 10 Schematic Diagram -phase, -pole -wire w/overlapping Neutral 20

35 Note : For Contactor Wiring Refer To Diagram 28. EMERGENCY POSITION LIGHT R G 110 NORML POSITION LIGHT R/L EMERGENCY VILLE LIGHT 6 W 1 W NORML VILLE LIGHT 62 R/L 11 L R L R NT TRNSFORMER TRNSFORMER ET NORML- -EMERGENCY SELECTOR SWITCH K W K W T1 ET ET2 ET1 NT NT2 NT1 P 6 6 S 1 J E E2 N1 N2 E1 E2 MIN LOGIC ORD N 10 E2 1 2 S1 N1 N2 E1 8 T N E E N2 21 E2 E1 8 1 N N DISCONNECT PLUG T Wiring Diagram Nonautomatic Transfer Switch NEM

36 For Contactor Wiring Refer To Diagram 28 EMERGENCY POSITION LIGHT X1 NORML POSITION LIGHT X1 116 X2 EMERGENCY VILLE LIGHT X2 NORML VILLE LIGHT R/L 6 X1 X X1 X2 R/L 11 R/L L R L R NT TRNSFORMER TRNSFORMER ET NORML-EMERGENCY SELECTOR SWITCH E2 K W N1 N2 E1 K E2 W ET ET2 ET1 NT NT2 NT1 T1 MIN LOGIC ORD 6 P 6 S E NO NO NO NO 10 N 1 2 E2 S1 N1 N2 E1 8 T N E E N2 E2 E1 8 1 N N DISCONNECT PLUG T Wiring Diagram Nonautomatic Transfer Switch NEM R &

37 KOHLER CO. Kohler, Wisconsin 0 Phone , Web site Fax (U.S.. Sales), Fax (International) For the nearest sales and service outlet in U.S.. and Canada Phone TP-8 /2a E Kohler Co., 12. ll rights reserved. Kohlerr Power Systems sia Pacific Headquarters Jurong Pier Road Singapore 611 Phone (6)26-622, Fax (6)26-6