Emerson 381333234 E Installation, Power connections, Engine Starting Contacts, Auxiliary Circuits

INSTALLATION (continued)

De–energize the conductors before making any line or auxiliary circuitry connections. Be sure that Normal and Emergency line connections are in proper phase rotation. Place engine generator starting control in the OFF position. Make sure engine generator is not in operation.

Power connections

A Wiring Diagram is furnished with the Series 200 ATSE. All wiring must be made in accordance with the local codes.

Do not run cables in front of the transfer switching device. Conductors can be bundled on the right side of the transfer switching device. Maintain proper electrical clearance between the live metal parts and grounded metal: 13 mm minimum.

It is not necessary to remove the barriers from the transfer switching device to install the conductors. If you do remove them, however, be sure to reinstall the barriers carefully.

Connect main source and load conductors to clearly marked power terminals on the transfer switching device. Be careful when stripping insulation from the conductors; avoid nicking or ringing the conductor. Remove surface oxides from conductors by cleaning with a wire brush. Follow conductor manufacturer’s instructions when aluminum conductor is used. Apply joint compound to conductor, then carefully wipe away excess compound. Tighten the terminals to the torque specified on the label on the transfer switching device.

Three conductor spacers are included with 150, 200, and 230 ampere transfer switching devices. When installing power conductors, run them through the conductor spacers as shown in Figure 1–4. Position the spacers within 38 mm of the power terminals.

NOTICE

Three conductor spacers must be located as shown for 150, 200, and 230 ampere transfer switching devices.

conductor spacers

38 mm approximate

conductor spacer

Figure 1-4. Required conductor spacers for 150, 200, & 230 amp transfer switching devices.

Engine Starting Contacts

The engine control contact connections (if used) are located on the transfer switching device. Connect signal wires to appropriate terminals as specified in Table A and shown in Figure 1–5.

Table A. Engine start connections

When normal		Terminals on
source fails		transfer switching device
contact closes		TB1 and TB2
contact opens		TB1 and TB3
ENGINE STARTING CONTACTS
( SHOWN DE–ENERGIZED )
TOP	1
STUD
MIDDLE	TS
	2	TB 1
STUD
	NR
BOTTOM	3	TB 3
STUD			TB 2
	NR

Figure 1-5. Engine starting contact label and location on left side of transfer switching device.

Interconnecting harness

Connect the plug–in harness (two plugs) from the transfer switching device to left side of the controller, if not already connected.

Auxiliary Circuits

Connect auxiliary circuit wires (if necessary) to appropriate terminals by referring to the Wiring Diagram.

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