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 performed at switch rated load current
**Horsepower test - make/break motor inrush/locked rotor current at rated HP,
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 |
**Horsepower test - make/break motor inrush/locked rotor current at rated HP,
Released for: Schneider Electric Canada
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales inquiry online and en expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Center
Find support resources for all your needs, in one place.