Product Manual

3. Installation3-2016

TABLE 5. MAXIMUM WIRE LENGTH BY WIRE SIZE

Wire Size (AWG) Distance in Feet (One Way)

16 125

14 200

12 300

10 500

The transfer switches are factory wired to provide Ground (B-) signals for all customer connections:

1. N/C or N/O Utility Source Available Indicators: Ground (B-) present when Utility Source is available

(TB4-2); Ground (B-) present when Utility Source is not available (TB4-1).

2. Transfer Switch Control (TB4-3): Transfers to available Generator Source upon receiving Ground (B-

) signal and retransfers to available Utility Source when Ground (B-) signal is removed.

3. Transfer Switch Position Indicators: Ground (B-) signal present when closed to Utility (TB4-5) and

closed to Generator (TB4-6).

Wire resistance must not exceed 0.5 ohm per line. Use stranded or solid wire. For connection to the screw

terminal, strip the insulation back 3/8 inch (10 mm).

3.2.3 Final Inspection and Cleanup

Prior to energizing the transfer switch:

1. Inspect all wiring to be certain that:

• All cabled connections are correct.

• All generator start low voltage signal connections are correct (refer to drawings at the end of

this manual and in the generator manual).

• Wiring does not interfere with switch operation.

• Wiring is not damaged as the door opens and closes.

• Wiring does not contact sharp or abrasive surfaces.

• No wiring is left loose and unconnected.

CAUTION

Debris lodged in the electrical and mechanical components may result in equipment

damage. Do not use a blower to remove debris.

2. Use a vacuum cleaner to remove any dust, filings, chips, or debris from the cabinet interior and

components.

3. Check the lug torque values of the power connections.

NOTICE

Lug torque values are specified on the label inside of the enclosure and in the Section 3.2.1

tables.

4. Double check the power supply voltages to make sure they match the voltages listed on the

nameplate.

5. Make sure that all covers and barriers are installed and properly fastened.