GE 70R-1000D manual Installation cont’d, Power Connections, Engine Start Control Connections

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Installation (cont’d)

DANGER

HAZARDOUS VOLTAGE

(Can Cause Severe Injury or Death)

Turn OFF all power before installation, adjustment, or removal of transfer switch or any of its components.

Power Connections

GE Zenith transfer switches are supplied with UL listed solderless screw type terminals as standard for the Source 1, Source 2 and Load power connections.

Table 1 lists the number and sizes of cable lugs supplied as standard for each switch amp rating.

Connect the Source 1, Source 2, and Load conductors to the clearly marked terminals on the transfer switch. Remove surface oxides from cables by cleaning with a wire brush. Verify that all connections are correct before tightening the lugs. All cable lug connections must be tightened to the proper torque values as shown in Table 2.

H

SPREADER BAR

45°

LIFTING EYES

NOTE: Do not run cables or wiring behind front-connected transfer switches.

CABINETD

Figure 1

NOTE: When lifting the switch using a spreader bar, height H must be equal to half of distance D.

Power Connections: Screw Type Terminals for External Power Connections

Switch Size

Source 1, Source 2 & Load Terminals

Neutral Bar (When Required)

(Amps)

Cable Per Pole

Range of Wire Sizes

No. of Cables

Range of Wire Sizes

40

1

#8 to 3/0 AWG

3

#14 to 1/0 AWG

 

 

 

 

 

80

1

#8 to 3/0 AWG

3

#14 to 1/0 AWG

 

 

 

 

 

100

1

#8 to 3/0 AWG

3

#14 to 1/0 AWG

150

1

#8 to 3/0 AWG

3

#6 AWG to 350 MCM

200, 225

1

#6 AWG to 250 MCM

3

#6 AWG to 350 MCM

 

 

 

 

 

260

1

#6 AWG to 350 MCM

3

#6 AWG to 350 MCM

 

 

 

 

 

400

1

#4 AWG to 600 MCM

4

#4 AWG to 600 MCM

 

 

 

 

 

600

2

#2 AWG to 600 MCM

8

#4 AWG to 600 MCM

800, 1000, 1200

4

#2 AWG to 600 MCM

12

#4 AWG to 600 MCM

 

 

 

 

 

1600, 2000

8

#2 AWG to 600 MCM

24

#4 AWG to 600 MCM

2600, 3000

 

 

 

 

Table 1

Engine Start

Control Connections

Engine-start control wires connect to control terminals beside the MX150. Engine start terminals are indicated by a schematic symbol (the symbol indicates the contact state for a de-energized normal source). Figure 3 shows the engine-start contacts.

Make all other necessary control connections to the con- trol panel terminal blocks per the schematics supplied with the ATS.

NOTE: All control wires (18-12 AWG) must be torqued to 19 in/lbs.

Tightening Torque for Lugs

Socket Size

 

Torque

Across Flats

Lb. - In.

 

Lb. - Ft.

1/8

45

 

4

5/32

100

 

8

3/16

120

 

10

7/32

150

 

12

1/4

200

 

17

5/16

275

 

23

3/8

375

 

31

1/2

500

 

42

9/16

600

 

50

Table 2

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ZTG/ZTGD Operation and Maintenance Manual (70R-1000D)

GE Zenith Controls ■

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Contents GE Zenith Controls Table of Contents Authorized ServiceIntroduction Safety / Installation Equipment Inspection and StorageFinal Equipment Inspection MountingPower Connections Installation cont’dEngine Start Control Connections Installation cont’d GE Zenith Controls Initial EnergizationInitial Energization cont’d R E T E S TMX150 Microprocessor Controller MX150 ControllerMX150 Microprocessor Controller cont’d LCD & KeypadUser Setting for Voltage & Frequency Standard Features, Mstdg Option PkgSource CalibrateR50 Std. Features, Mstdg Option Pkg. cont’dS13 Standard Features, Mexeg Option Pkg CDP replaces CDTOptional Accessories How to Set the System Clock CDT One Event Timer ExerciserCDT One Event Timer Exerciser cont’d How to Bypass Cancel an exercise during an exercise cycleCDP Clock Exerciser Load / No-Load Clock ExerciserMX150 User Setup CFG Menu Turn options on or OFF via keypad through the CFG menuMX150 User Setup SET Menu Change adjustable values through the SET menuMX150 User Setup System Info View System DataTesting ATS TestingDelayed Transition Standard TransitionTimer Designations as they appear in the SET menu Sequence of OperationControls Power Supply CPS Standard and Delay TransitionStandard Transition CPS Schematic Controls Power Supply CPS cont’dDelayed Transition CPS Schematic Troubleshooting and Diagnostics General TroubleshootingMaintenance and Testing Inspection and CleaningTesting ServicingPower Panel and Replacement Parts Standard Transition 40 to 260 Amps Solenoid TypePower Panel and Replacement Parts cont’d Standard Transition 400 to 600 Amps Molded TypeStandard Transition 800 to 1200 Amps ARC Grid Removed for ClarityStandard Transition 1600 to 3000 Amps Stationary Contact Moveable ContactDelayed Transition 40 to 600 Amps AmpsDelayed Transition 800 to 1200 Amps SCR-EO Movable Contact Stationary ContactDelayed Transition 1600 to 3000 Amps Movable E3 Contact StationaryPage Page Page GE Zenith Controls
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