Frequently asked questions
What is the "1 phase 3 phase" rating on the circuit breaker label?
FA175820
28 September 2021
Issue:What is the 1 phase 3 phase rating on the circuit breaker label?
Product Line:
Powerpact, Masterpact
Resolution:
The single phase - three phase rating is specifically for the Grounded B Phase (Corner Grounded Delta) system.
See the below example for a 240 Vac corner grounded system, and ratings for 2p and 3p QD breakers