Bussmann FRN-R-40

Bussmann FRN-R-40

Overview

The Bussmann FRN-R-40 is a Class RK5 dual-element time-delay fuse designed to provide dependable overload and short-circuit protection in industrial and commercial electrical systems. With a 40 A current rating and a voltage capacity of 250 V AC / 125 V DC, it ensures safe operation for power distribution, motor circuits, and control systems.

Engineered with a dual-element time-delay design, the FRN-R-40 provides a 10-second response at 500% overload, allowing it to withstand harmless motor and transformer inrush currents without nuisance opening. With a 200 kAIC interrupt rating at 250 V AC and 20 kAIC at 125 V DC, it guarantees safe performance under high fault-current conditions.

Key Features

• Class RK5 dual-element time-delay fuse

• Current rating: 40 A

• Voltage rating: 250 V AC / 125 V DC

• Interrupt rating: 200 kAIC at 250 V AC / 20 kAIC at 125 V DC

• Response time: 10 seconds at 500% overload

• Dual-element construction balances overload and short-circuit protection

• Connection: Ferrule end x ferrule end

• Fuse indicator: Non-indicating

• Special feature: Finger safe design

• Dimensions: 3 in (L) × 0.81 in (W) × 0.81 in (H)

• Weight: 0.11 lb

• Compliance: CE Marked

• Packaging type: Standard

Technical Specifications

• Manufacturer: Bussmann Series

• Catalog Number: FRN-R-40

• Product Type: Time-delay fuse

• Fuse Class: RK5

• Amperage Rating: 40 A

• Voltage Rating: 250 V AC, 125 V DC

• Interrupt Rating: 200 kAIC (250 V AC), 20 kAIC (125 V DC)

• Response Time: 10 seconds at 500% overload

• Number of Elements: Dual

• Fuse Indicator: Non-indicating

• Connection Type: Ferrule end x ferrule end

• Special Feature: Finger safe

• Dimensions: 3 in × 0.81 in × 0.81 in

• Weight: 0.11 lb

• Compliance: CE Marked

• Packaging Type: Standard

Applications

• Motor branch circuits

• Power distribution systems

• Transformers and inductive loads

• Control panels

• Industrial machinery

Why Choose the FRN-R-40

• High 200 kAIC interrupt rating ensures safe fault clearing

• Time-delay design tolerates inrush currents without nuisance trips

• Finger-safe design enhances operator safety

• Compact Class RK5 format with ferrule connections

• Trusted Bussmann reliability and CE compliance

Order Now

The Bussmann FRN-R-40 Class RK5 Fuse is available and ships worldwide.

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NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply