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Installation
Connecting Power Source and
Generator Power Supply
DANGER
Electrocution. Turn utility and emergency
power supplies to OFF before connecting
power source and load lines. Failure to do so
will result in death or serious injury.
Installation and interconnection diagrams are provided in
this manual.
NOTE: All installations must comply with national, state
and local codes. It is the responsibility of the installer to
perform an installation that will pass the final electrical
inspection.
1. Connect utility supply at the utility service
disconnect circuit breaker terminals N1 and N2.
Follow torque specifications listed on the circuit
breaker.
2. See
Figure
3-2. Connect utility neutral and ground
to the Upper Neutral and Ground terminals. Neutral
and Ground terminals are bonded to each other
with a jumper wire (A).
NOTE: Neutral to Ground jumper wire (A) is provided for
use if required by local codes.
3. Connect generator to the generator terminals (E1
and E2) on the transfer mechanism.
4. Connect the generator neutral wire to the lower
neutral lug.
IMPORTANT NOTE: A jumper wire (B) bonds the
upper and lower Neutral lugs. NEVER remove this
wire.
5. Connect a subpanel supply to lower T1 and T2
Terminals. Connect subpanel Neutral and Ground
to lower Neutral and Ground bars.
Conductor sizes must be adequate to handle the
maximum current to which they will be subjected, based
on the 75°C column of tables, charts, etc. used to size
conductors. The installation must comply fully with all
applicable codes, standards and regulations.
Knockouts into the transfer switch can be made in the
field as needed for entry of power cables and conduit.
Conduit entry shall maintain the proper wire bending
spaces required by CSA C22.1. A barrier provides
separation between the Utility and Generator supply
conductors inside the enclosure.
NOTE: The upper panel has a provision for a utility lock
or tag after installation is complete. The service entrance
circuit breaker also has a provision for a locking device.
NOTE: If aluminum conductors are used, apply corrosion
inhibitor to conductors. After tightening terminal lugs,
carefully wipe away any excess corrosion inhibitor.
10
(000116)
A
B
Tighten terminal lugs to the torque values as noted on the
decal located on the inside of the door. After tightening
terminal lugs, carefully wipe away any excess corrosion
inhibitor.
Equipment damage. Verify all conductors are tightened
to the factory specified torque value. Failure to do so
could result in damage to the switch base.
Figure 3-2. Wiring Connections
CAUTION
Automatic Transfer Switch Owner's Manual
N1
N2
E1
E2
T1
T2
006147
(000120)
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