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What Class of fuse does the H225N, H225NR, H225NDS and H225NAWK safety switches accept?

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 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 HRK4060 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.


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