Installation Guide

a. Connect the power leads from both the generator and the utility to the appropriate lugs in the
transfer switch. The lugs are clearly marked in the switch.
b. Neutral wires from both the utility and the generator are connected to the same neutral bar in
the switch.
ATS Grounding
Bar Lug
Generator Grounding
Bar Lug
c. Connect the control wires from the generator to the designated locations.
d. Complete the transfer switch wiring by connecting the equipment ground wires from both the
utility and the generator to the grounding bar lug.
e. Being careful to support the lugs, torque lugs to 20 N.m inside the transfer switch.
FUNCTIONAL TESTING OF UNIT
1. Switch the main utility breaker OFF. Refer to NFPA 70-E for the safety equipment required
when working inside a live transfer switch.
2. Engage the utility power and check line-to-line and line-to-neutral voltage
at terminals on the transfer contactor. If line-to-line voltage is not
approximately 240 volts, disengage utility power and check terminal
between the utility and Neutral 1 and Neutral 2. If line to neutral is not
reading approx. 120 volts, shut down utility power and re-inspect neutral
terminal connections.
3. Repeat the same voltage checks on terminals to make
sure current is owing properly through the contactor.
4. Switch the generator’s main circuit breaker OFF and put the mode
switch in the OFF position.
5. Make sure utility power is in the OFF position and place all individual circuits
in the main power panel in off position as well.
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18-SG02D1-1A-EN