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Search FAQs

How many ON-OFF operations can a circuit breaker withstand?

Issue:
How many ON-OFF operations can a circuit breaker withstand?

Product Line:
Square D, Powerpact, Masterpact

Environment:
Products sold in North America

Resolution:
This table lists the UL endurance test requirements for different frame sizes:
 
Frame Size (A)Full Load OperationsNo 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
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