Rockwell Automation 2100 CENTERLINE Bolted Pressure Contact Switch - Manual (Page 3)

Publication 2100-IN049B-EN-P - February 2008
CENTERLINE ® 2100 Motor Control Centers 600A, 800A, and 1200A Bolted Pressure Contact Switch 3
3. Remove the connectors from the switch.
•
For compression lugs: following the cable connector
manufacturer’s instructions, install the connectors onto the
cables.
•
For mechanical lugs: follow the torque specification supplied
on the wiring diagram.
Note: Guidance is also provided in the CENTERLINE 2100 Low
Voltage Motor Control Centers Instruction Manual, publication
2100-IN012.
The terminal connector hole pattern is per the NEMA hole
spacing standard or 44.5 mm (1.75 in.).
4. Support, position, and form the cables to line up with the
terminals of the BPS.
5. Install the connectors using the hardware supplied. Tighten the
hardware to the specified torque requirement as listed on the
unit wiring diagram.
Note: Guidance is also provided in the CENTERLINE 2100 Low Voltage
Motor Control Centers Instruction Manual, publication 2100-IN012.
IMPORTANT
The cables must be properly aligned and should not
cause BPS terminals to be skewed. If the cables are
not supported or aligned, the weight/force from the
cables can act as a lever, causing the terminals to be
twisted out of alignment. Proper alignment of BPS
terminals is critical for the operation of the switch.
IMPORTANT
Be careful not to disturb or dislodge the arc chutes.
This could cause interference with the operation of
the contact blades. See Figure 1.
TIP
In order to access the hardware for tightening, it may
be necessary to use a crow’s foot attachment in
conjunction with the torque wrench. If a crow’s foot
attachment is used, no torque value adjustment is
required for the small increase in length due to the
crow’s foot (i.e., use the torque values provided). An
example of this operation is shown in Figure 2.