What is the rating of the number of switching operations of Square D, 100 A, heavy duty, F-Series safety switches?

Issue:
100A, Heavy Duty, F-Series Safety Switches number of switching operations.

Product Line:
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 100A F-Series Safety Switches exceed the UL and NEMA requirements by more than 3 times the total (see below table):

	Endurance Test - Number of Operations			HP Test - Number of Operations
Test Stds	Rated Load*	No Load	Total (Load + No Load)	at rated HP**
UL	6000	4000	10000	50
NEMA	7000	7000	14000	50
Square D	7000	43000	50000	50

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

Number of switching operations for other Heavy Duty Safety Switches:
For 30-60A series F Heavy Duty safety switches, see FA99746
For 200A series F Heavy Duty safety switches, see FA99791
For 400A series E Heavy Duty safety switches, see FA99792
For 600A series E Heavy Duty safety switches, see FA99819
For 800A series E Heavy Duty safety switches, see FA99821
For 1200A series E Heavy Duty safety switches, see FA99822

Released for:Schneider Electric USA