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.
Control Connections
Connecting Engine Start may cause Generator to start. Before connecting, turn Generator OFF.
With the Generator breaker open and the Generator control switch off, install the Generator start connections.
JP | A B |
1 2 3
6 
5
4
BA
Exerciser
CONTROLLER
Close to Start
Opens to Stop
Contact Rating
28Vdc @ 5 amps
Figure 3 | Engine Start |
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| Contact Output |
The
Terminals for field connections to the A3 Emergency auxiliary contacts and the A4 Normal auxiliary contacts are also provided. These terminals are clearly marked and appear on the side of the power panel. On 400 amp metal frame units these terminals appear on the bracket above the operator handle.
g GE Zenith Controls
SERIAL NUMBER: |
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RATING: VOLTS - |
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| HZ - | |
AMPS - |
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| PHASE - | |
SYSTEM VOLTS: |
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MODEL NUMBER: |
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Note:
N = Utility Position
E = Generator Position
Figure 4
Manual operation is possible for maintenance purposes only. Manual operation of the switch can be checked before it is operated electrically.
With all power off, insert a Phillips screwdriver or equivalent size tool into the manual operator socket and operate the transfer switch between the Utility and Generator positions. The transfer switch should operate smoothly without binding. Return the switch to the Utility position, remove the screwdriver.
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
Figure 3
■ 4 | ZTX Operation and Maintenance Manual | GE Zenith Controls ■ |
