Technical FAQs

Ask a Question

What is the 1 phase 3 phase rating on the circuit breaker label?

Issue:
What is the 1 phase 3 phase rating on the circuit breaker label?

Product Line:
Powerpact, Masterpact

Environment:
Defining ratings on faceplate label

Cause:
1ph-3ph symbol is undefined

Resolution:
The single phase - three phase rating is specifically for the Grounded B Phase (Corner-Grounded Delta) system only, otherwise use the standard ratings on the label.
See the below example for a 240Vac Corner Grounded System, and ratings for 2p and 3p QD breakers


 
Was this helpful?
What can we do to improve the information ?