VTI UDS MB and FD Series - Manual (Page 3)

3. CABINET WIRING
3.1 Load WIRING
Ensure that each load wire pair from the field is electrically disconnected from all power
sources prior to handling. Pull the wire pair from each load to the UDS cabinet and route
through the field wiring entry in the top of the cabinet to the circuit breaker compartment.
Cut and strip the wire pair for termination on the appropriate circuit breaker and the
neutral bus located at the bottom of the circuit breaker compartment.
Prior to connecting the wire pair to the circuit breaker, verify the integrity of the wire
insulation by Hy-potting each conductor to ground with voltage set for (2 x rated voltage
+ 1000V). If successful, connect each wire pair to the circuit breaker and/or neutral bus.
After all wire pairs have been connected, replace the trim panel that covered the circuit
breakers, close the circuit breaker door and tighten the fasteners which secure the door.
3.2 FEEDER WIRING
WARNING:
MAKE SURE THAT THE THREE PHASE 400/415 & 480/600 VOLT, 50/60 HZ,
CIRCUIT BREAKER OR DISCONNECT SWITCH WHICH WILL FEED
POWER TO THE CABINET IS DE-ENERGIZED AND LOCKED OUT BEFORE
ATTEMPTING TO PULL THE FEEDER CABLE TO THE UDS CABINET!
Based on the transformer rating of the UDS cabinet, pull appropriately sized four
conductor cable from the main disconnect switch or circuit breaker through the input
power conduit at the top of the cabinet.