Allen-Bradley 1512B, User Manual

Page: 34 / 108

34 Rockwell Automation Publication 1500-UM055I-EN-P - December 2021
Chapter 2 Installation – Arc-Resistant Enclosure
Rear Access
1. Remove the hardware securing the center rear bus access cover (see
Figure 25 ).
2. Remove the center rear bus access cover.
3. Once the rear bus cover is removed you will see the three power bus bars
and ground bus (see Figure 27 ).
Figure 25 - Access to Power Bus from Side and Rear of Cabinet
Side Access
A side bus access cover is located on each side of the controller.
1. Remove the hardware from the appropriate side bus access cover.
2. Remove the side bus access cover (see
Figure 25 ).
3. ArcShield units at the end of a line-up have a ground connection to the
inner plate of the side bus access cover (see Figure 26 to Figure 28 ). This
connection must be maintained to ensure unit arc resistant
performance.
Figure 26 - Side Bus Access Cover Warning Label
Side Bus Access Cover
Center Rear Bus Access Cover