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

Published date: 21 May 2020

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 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

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