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What class of fuse does the H323N, H323NRB, H223N, H223NRB, H223DS, H223A, H223AWK, H323DS, H323A and H323AWK 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) and Class J fuses (field relocate the fuse base assembly to alternate position marked in the enclosure). 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 fuses (and Class R Fuse Kit installed) or Class J fuses 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.
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