Rockwell Automation Liqui-Flo Trane Addendum - Manual (Page 25)

Connecting Cabinet Power Wiring 4-1
C
HAPTER
4
Connecting Cabinet Power Wiring
This chapter describes how to connect input and output power to the cabinet.
4.1 Cabinet Input Disconnect
An input disconnect circuit breaker is factory-installed in the cabinet. Verify that the
available fault current is less than the interrupting rating on the circuit breaker
nameplate, which is 65,000 amps at 480 VAC.
4.2 Installing Input Power Wiring (6-Pulse Rectifier
Cabinet)
Use the following steps to connect AC input power to the cabinet:
Step 1. Remove the top panel of the cabinet.
Important: Care must be taken to prevent debris from falling into the cabinet while
performing this installation.
Step 2. Drill the wire routing holes in the panel. Note that the wire routing hole
patterns shown in figure 3.3 are recommendations only. These wire routing
holes are the only entry points for input power wiring into the cabinet.
Step 3. Install the appropriate conduit hubs.
Step 4. Reinstall the cabinet’s top panel.
Step 5. Connect the three-phase 480 VAC input power leads to circuit breaker
terminals L1, L2, and L3. See figure 4.1 and Appendix A. Tighten these
connections to 23 ft-lb (+ 10%). Use only copper conductors for the input
power leads.
!
ATTENTION: The user is responsible for conforming with all applicable
local, national, and international codes. Failure to observe this precaution
could result in damage to, or destruction of, the equipment.
!
ATTENTION: The user is responsible for conforming with all applicable
local, national, and international codes. Failure to observe this precaution
could result in damage to, or destruction of, the equipment.