What is the rating of the number of switching operations of Square D, 400 A, general duty, E-Series safety switches?

Issue:
Product Design Features

Product Line:
General Duty Safety Switches

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, as well as the number of operations required by Square D.

Endurance Test Numbers of Ops				HP Test Number of Ops
Test Standards	Rated Load*	No Load	Total (L+NL)	At Rated HP**
UL	1000	5000	6000	10
NEMA	1000	5000	6000	10
Square D	1000	5000	6000	10

* endurance test done at switch rated Load current
** horsepower test - make/break motor inrush/locked rotor current at rated HP

Released for:Schneider Electric USA