Bussmann FRN‑R series fuses provide motor overload, ground fault and short‑circuit protection. The grooved ring in the ferrule and the slot in the knife blade, when used in conjunction with special fuseholders designed to accept Class R fuses only, prevent accidental interchanging of any other fuse class.
Simplifies and Improves Blackout Protection
Protects Motors From Burnout From Overloads
Protects Motors From Burnout From Single Phasing on 3‑Phase Systems
