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Wiring
Relay cabinets have multiple relay circuits of a specific type depending on the cabinet
model. For details of the different relay types, their capacities, and permitted wire sizes,
please reference the chart on page 9.
Testing the Circuits
Prior to connecting any circuit to a relay, and after all load and feed connections have
been made opposite the relay cabinet, test each circuit by following this procedure:
Turn OFF the breaker feeding the circuit.
Step 1:
Step 2:
Ensure that all connections and wiring between the relay cabinet and the
circuit breaker panel are complete.
Step 3:
Ensure that all connections and wiring between the relay cabinet and the load
are complete.
At the relay cabinet, connect the feed(s) for relay #1 to the load for relay
Step 4:
#1 with a wire nut or other appropriate means.
Step 5:
Energize the circuit by turning on the circuit breaker.
Step 6:
Resolve any mis-wiring, shorts, etc. for the connected circuit.
Step 7:
Repeat the above steps for all circuits in all relay panels for your system.
When all circuits have been tested, disconnect all Lines from Loads and
proceed to the next section.
Installing Relay Cards
On several relay cabinet models, the relays are removable. If you have one of these
cabinets and need to add or remove relay modules, please follow these instructions:
Step 1:
Locate the appropriate
location for the relay card
Connector to Relay
Bus Board on bottom of
Align the connector from the relay card with the relay bus board and gently
Step 2:
push the two together.
Step 3:
Once firmly seated, use a Phillips screwdriver to drive the mounting screw
tightly in place.
NOTE:
If you need to remove the relay cards that shipped installed from the factory,
remove the shipping screw located near the connector and discard. This
screw is only required for shipping and not for installation.
Relay Card
Line Voltage & Control Power Termination
Line and Load Circuit Wiring
Mounting Screw
Location
7
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