Bussmann FRS‑R 15 Amp fuse 600 V

Bussmann FRS‑R 15 Amp fuse – 600 V time‑delay protection with superior performance

The Bussmann FRS‑R 15 Amp fuse is a premium Class RK5 cartridge fuse designed to deliver reliable protection for motors, circuit panels, HVAC systems, and industrial equipment. Rated for 600 VAC and 300 VDC, this fuse employs a dual-element, current‑limiting, time‑delay design, allowing it to tolerate motor start‑up surges without blowing while still protecting against true overloads and short circuits.

Exceptional dual-element, time-delay performance

This Bussmann FRS‑R 15 Amp fuse features dual‑element technology:

• Time-delay capability holds the fuse for a minimum of 10 seconds at 500% of rated current, reducing nuisance blows during normal motor startup cycles

• Current-limiting action lowers fault current rapidly in short-circuits, minimizing downstream damage

These features enable precise sizing close to full-load amps and allow users to install smaller switches and panels cost-effectively.

High interrupting capacity for safe operations

The fuse provides an AC interrupting rating of 200 kA RMS symmetrical at 600 V and 20 kA at 300 V DC. This makes it compliant with UL 248‑12, CSA C22.2 No. 248.12, and CE standards, ensuring safe deployment in high-capacity industrial environments.

Robust construction & dimensions

• Length: 5.00 inches (±0.031″)

• Diameter: 0.81 inches (±0.008″) 

• Weight: Approximately 0.17 lb (77 g)

• Body material: Fiberglass with tin-plated copper ferrule ends

Typical applications

Ideal for:

• Motor control centers (MCC) and feeder circuits

• HVAC, refrigeration units, and compressors

• Industrial machinery, conveyors, and pumps

• Protecting circuits against motor inrush and short-circuits

The Bussmann FRS‑R 15 Amp fuse is engineered for these demanding applications, providing longevity and safety even under heavy workloads.

Efficient installation & system compatibility

Designed for fuse holders rated for RK5 fuses, it installs easily in 1-pole, 2-pole, or 3-pole setups. Ensure proper torque on holder clips and wiring to maintain circuit safety.

Trusted Bussmann quality

As part of the Eaton/Bussmann Fusetron line, the FRS‑R 15 Amp fuse reflects decades of innovation in circuit protection. Its blend of time-delay performance, high interrupt rating, and current-limiting design makes it a top choice for professionals who demand protection without downtime.