Bussmann FRS‑R series fuses provide motor overload, ground fault and short‑circuit protection. When used in circuits subject to surge currents such as those caused by motors, transformers, and other inductive components, these fuses can be sized close to full‑load amperes to give maximum overcurrent 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
Eaton Bussmann series FRS-R fuse, 250 A, Dual, Class RK5, Non-indicating, Blade end x blade end, 10 sec at 500, 200 kAIC at 600 V, 20 kAIC at 300 Vdc, Standard, 600 V, 300 Vdc