Rockwell Automation 2500 CENTERLINE Motor Control Centers Installation Manual - Manual (Page 60)

60 Rockwell Automation Publication 2500-IN001C-EN-P - April 2014
Chapter 6 Install and Remove Units
Withdrawable Units Withdrawable units are characterized by withdrawable line, load, control,
network, and PE connections. Outgoing load and control connections from
these units are made in the vertical wireway. Withdrawable units use a sliding
track and a mechanical lever for ease of insertion and removal. Additional
features include a separate unit door and optional door mounted pilot devices.
The unit door can be closed and latched, providing isolation when the unit is
removed. Pilot devices are housed in removable control stations. An optional
closing plate is available to help provide isolation if the control station is removed.
Figure 22 - Connections for Multiple Module Withdrawable Units
Figure 23 - Withdrawable Unit Connections – Two or More Modules
Protective Earth
Conductor (PE)
Control Network
Load Line
Isolated Control
and Network
Wireway
Customer Load
Connection
PE
Load
Line
Control
Network