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What Class of fuse does the H366, H366N, H366R, H366NR, H366DS, H366NDS, H366AWK and H366NAWK Heavy duty safety switches accept?

Issue:
Product design features

Product line:
Heavy Duty Safety Switches

Environment:
Fuse Class

Cause:
Application

Resolution:

These switches accept Class H or K fuses as standard. Options include Class R fuses (field install Class R Fuse Kit HRK4060) and Class J fuses (field install Class J Adaptor Kit H600J). With Class H or K fuses installed, the switches are UL listed for use on systems with up to 10,000 RMS Symmetrical Amperes available fault current. With Class R or J fuses and the appropriate fuse kit installed, the switches are UL listed for use on systems with up to 200,000 RMS Symmetrical Amperes available fault current.

NOTE: DO NOT USE RENEWABLE LINK FUSES IN SQUARE D SAFETY SWITCHES. The use of renewable link fuses may adversely affect user safety, impair reliability and will void the warranty.

CTA-ID : 11628
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