Technical FAQs

Ask a Question

Can the ULP and modbus terminals on a BCM be used at the same time?

Using all terminals of a Breaker Communications Module

Product Line:
Powerpact P, R, and Masterpact breakers with communications

Applies to trip units with BCM

When ULP terminals of BCM are connected to anything but the FDM121, the modbus terminals are disabled.  With that exception, you can use the modbus terminals or the ULP terminals; not both.
For reference, the 2-wire modbus terminals are E3 and E4; the ULP terminals are E5 and E6.
Was this helpful?
What can we do to improve the information ?