Issue:
Product design feature
Product Line:
Heavy Duty Safety Switches
Environment:
Number of operations
Cause:
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, as well as the number of operations required by Square D.
Number of switching operations for other Heavy Duty Safety Switches:
Product design feature
Product Line:
Heavy Duty Safety Switches
Environment:
Number of operations
Cause:
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, as well as the number of operations required by Square D.
Number of switching operations for other Heavy Duty Safety Switches:
- For 30-60A series F Heavy Duty safety swtiches, see FA99746
- For 100A series F Heavy Duty safety switches, see FA99790
- For 200A series F Heavy Duty safety switches, see FA99791
- 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
