Frequently asked questions
How many ON-OFF operations can a circuit breaker withstand?
FA87608
24 May 2022
Issue:How many ON-OFF operations can a circuit breaker withstand?
Product Line:
Square D, Powerpact, Masterpact
Resolution:
This table lists the UL endurance test requirements for different frame sizes:
| Frame Size (A) | Full Load Operations | No Load Operations |
| 0-100 | 6,000 | 4,000 |
| 101-225 | 4,000 | 4,000 |
| 226-600 | 1,000 | 5,000 |
| 601-800 | 500 | 3,000 |
| 801-2500 | 500 | 2,000 |
| 2501-4000 | 400 | 1,100 |