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Can the Heavy Duty, Fusible or Non-Fusible, Safety Switches be applied at 400 Hertz (Hz) applications?

Issue:
Product Design Features

Product Line:
Heavy Duty Safety Switches

Environment:
Voltage system Frequency

Cause:
Application

Resolution:
Yes, Square D can self-certify that Fusible Heavy Duty Safety Switches can be applied at 400 Hz. BUT the installer will need to contact the fuse manufacturer to determine how to select appropriate fuses.

Yes, Square D can self-certify that non-fusible Heavy Duty Safety Switches can be applied at 400 Hz.
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