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What is the number of switching operations of Square D, 200 A, heavy duty, F-series safety switches?

Issue:
Application

Product Line:
HD Safety Switch

Resolution:
For safety switches, the standard for design and testing of the number of switching operations is governed by UL98 and NEMA KS-1.There are two separate tests: (1) endurance test, and (2) horsepower-overload test. The below table shows the minimum number of operations required (OFF to ON to OFF) by UL and NEMA. For the endurance test, however, Square D F-series safety switches exceed the UL and NEMA requirements by up to 3 times the total (see below table).

NUMBER OF OPERATIONS:
Table showing number of switching operations for the Square D 200 A safety switches per UL, NEMA, and Square D