What class of fuse does the D221N, D221NRB, D321N, and D321NRB general duty safety switches accept?
Issue:
Product design features
Product Line:
General Duty Safety Switches
Resolution:
These switches accept class H or K fuses as standard. For series E1, E2, or E3, options include class R fuses (field install class R fuse kit DRK30). With class H or K fuses installed, the switch is UL listed for use on systems with up to 10 kA available fault current. With class R fuses, the switch is UL listed for use on systems with up to 100 kA 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.
Product design features
Product Line:
General Duty Safety Switches
Resolution:
These switches accept class H or K fuses as standard. For series E1, E2, or E3, options include class R fuses (field install class R fuse kit DRK30). With class H or K fuses installed, the switch is UL listed for use on systems with up to 10 kA available fault current. With class R fuses, the switch is UL listed for use on systems with up to 100 kA 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.
Released for: Schneider Electric USA
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