{}

Our Brands

Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric Website

Welcome to our website.

Search FAQs

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 OperationsHP Test Number of Operations
Test StandardAt Rated Load*No LoadTotal (L+NL)At Rated HP**
UL600040001000050
NEMA600040001000050
Square D6000240003000050
*Endurance test performed at switch rated load current
**Horsepower test - make/break motor inrush/locked rotor current at rated HP,

Schneider Electric Canada

Explore more
Range:
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range: