What is the rating of the number of switching operations of Square D, 30 - 60 A, general duty, E-series safety switches?

Issue:
Application

Product Line:
GD Safety Switch
Application

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:

Endurance Test Number of Operations				HP Test Number of Operations
Test Standard	At Rated Load*	No Load	Total (L+NL)	At Rated HP**
UL	6000	4000	10000	50
NEMA	6000	4000	10000	50
Square D	6000	24000	30000	50

*Endurance test performed at switch rated load current
**Horsepower test - make/break motor inrush/locked rotor current at rated HP,

Released for:Schneider Electric USA