Rockwell Automation 2100 CENTERLINE Bolted Pressure Contact Switch - Manual (Page 6)

Publication 2100-IN049B-EN-P - February 2008
6 CENTERLINE ® 2100 Motor Control Centers 600A, 800A, and 1200A Bolted Pressure Contact Switch
Switch Operation
Refer to the CENTERLINE 2100 Low Voltage Motor Control Centers
Instruction Manual, publication 2100-IN012, supplied with the MCC,
especially the section entitled, “Operator Handle and Unit Interlock.”
Operation, locking off, and other details are similar for all
CENTERLINE 2100 disconnects and for the BPS. This information can
be found in the aforementioned MCC instruction manual.
In addition to the position of the handle, a separate indicator shows
the condition of the BPS. This indicator appears behind a window just
below the handle bearing. See Figure 3.
Figure 3 BPS indicator
If the indicator shows “ON/I,” the BPS contacts are closed. If the
indicator shows “OFF/O,” the contacts are open. However, should the
handle be in the OFF/O position and the indicator shows “ON/ I” or
visa versa, the BPS may be incorrectly installed or a malfunction has
occurred.
IMPORTANT
If false or inconsistent contact indications occur,
remove the power feeding the BPS. Check for
voltage. Carry out cautionary steps (e.g., checking
the contact position, operation, and condition of the
switches).
ATTENTION
To prevent injury or death to personnel servicing the
switch, disconnect the motor control center remote
power source(s) so that no power is present.