Bussmann FRS-R 300 Amp fuse 600 V

Description

Bussmann FRS‑R 300 Amp fuse – high‑capacity protection for industrial systems

The Bussmann FRS‑R 300 Amp fuse is a robust Class RK5 cartridge fuse engineered for industrial motor protection, heavy-duty feeders, and emergency power systems. Its dual-element, time-delay, current-limiting design provides superior protection by tolerating motor inrush currents while swiftly interrupting dangerous short-circuits.

Premium protection features:

• Dual-element time‑delay: holds for at least 10 seconds at 500% of rated current, minimizing nuisance tripping during motor starts

• Current-limiting design: reduces fault current to protect downstream components

• 600 VAC / 300 VDC voltage rating ensures versatile use

• Interrupting rating: 200 kA @ 600 VAC; 20 kA @ 300 VDC

🔧 Technical Specifications

🏭 Applications

Ideal for:

• Motor control centers and compressors

• High-current feeders in manufacturing

• HVAC and industrial refrigeration

• Emergency generator circuits

• Any system requiring reliable high‑load protection

🛠️ Installation Tips

• Use RK5-rated fuse holders (e.g., RM60400 series)

• Ensure terminal connections are clean and torqued per holder specs

• Use only identical fuse type/rating for replacements

Additional information