Bussmann FRN-R-40 40A 250V Class RK5 Time-Delay Fuse — 5-Pack, New

Bussmann FRN-R-40 40A 250V Class RK5 Time-Delay Fuse — 5-Pack, New

Genuine Bussmann FRN-R-40 Fusetron energy-efficient dual-element time-delay Class RK5 fuses. 40-amp, 250VAC / 125VDC, current limiting. Interrupting rating 200kA AC / 20kA DC. UL and CSA listed. Includes 5 fuses. New, not in original packaging.

Product Details

• Brand: Bussmann (Eaton)
• Part Number: FRN-R-40
• Series: Fusetron Energy Efficient
• Amperage: 40A
• Voltage Rating: 250VAC / 125VDC
• Class: RK5
• Type: Dual-element time-delay, current limiting
• Interrupting Rating: 200kA AC / 20kA DC
• Dimensions: 3" L × 13/16" diameter (cylindrical)
• Listings: UL and CSA listed
• Quantity: 5 fuses
• Condition: New, not in original packaging

Common Applications

• Motor branch circuit and feeder protection (NEC 430)
• Transformer primary and secondary protection
• HVAC, pump, and compressor motor circuit fusing
• Industrial control panels and MCC motor starters
• Solar PV AC disconnect and feeder fusing

Why Bussmann FRN-R (Fusetron)?

• Dual-element design tolerates motor inrush without nuisance blowing
• Current-limiting action reduces arc flash incident energy
• Class RK5 rejection feature prevents installation of lower-rated fuses in rejection fuseholders
• Industry-standard Fusetron series — widely stocked and specified across commercial and industrial applications

Ships standard parcel. Genuine Bussmann OEM fuses.

Brand: Bussmann | P/N: FRN-R-40 | 40A | 250VAC/125VDC | Class RK5 | Dual-Element Time-Delay | Current Limiting | IR 200kA AC/20kA DC | UL/CSA Listed | Qty: 5 | Condition: New