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INSTALLATION
9
Power Wiring Interconnections
All wiring must be the proper size, properly supported
and protected by conduit. Ensure all power is
disconnected during installation.
Complete connections between the inlet box, main
distribution panel and the transfer switch per Figure 4
on the next page.
1. Connect utility feeder from two pole 50 Amp
branch circuit breaker in main distribution panel, to
transfer switch 50 Amp breaker marked “Utility
Supply”.
2. Connect main distribution panel neutral to transfer
switch 50 Amp breaker neutral marked “Utility
Supply”. DO NOT connect to neutral or ground bus
in transfer switch.
3. Connect main distribution panel equipment ground
to equipment ground bus in transfer switch.
4. Connect generator feeder from receptacle in inlet
box to transfer switch 30 Amp breaker marked
“Generator Supply”.
5. Connect generator neutral from receptacle in inlet
box to transfer switch 30 Amp breaker neutral
marked “Generator Supply” DO NOT connect to
neutral or ground bus in transfer switch.
6. Connect generator equipment ground from
receptacle in inlet box to transfer switch ground
bus.
IMPORTANT: Connecting the transfer switch neutral
bus to ground will trip the generator GFCI. DO NOT
connect the transfer switch neutral bus to ground.
7. Connect all branch circuit breakers to appropriate
essential circuits, including line and neutral circuit
conductors.
8. Tighten all wire connections and fasteners to
proper torque.
NOTE: Utility and Generator branch circuit breakers in
transfer switch are specially designed to disconnect
appropriate neutral circuits during operation. This
feature allows the use of Ground Fault Circuit
Interrupter devices on generators when installed
correctly.