FRN-R Series BP/FRN-R-50ID Fuse, 50 A, 250 V, 20, 200 KA Interrupt, Fiberglass Body, RK5

The Bussmann BP/FRN-R-50ID is a Class RK5 cartridge fuse designed for reliable protection of AC power distribution systems, motors, and transformers. This heavy-duty time-delay fuse allows harmless temporary overloads to pass through while responding swiftly to short-circuit conditions, making it essential for both residential and commercial electrical installations. The dual-element design provides excellent protection while accommodating the initial startup current surge typical of motors, helping prevent equipment burnout caused by overloads or single phasing.

The time-delay feature is especially valuable in applications where motors or other inductive loads experience brief surge currents during startup. If a dangerous overload persists, the fuse will open before motor burnout occurs. In the event of a short circuit, the dual-element design opens in as little as 0.004 seconds, providing immediate protection. With a 200 kA interrupting rating at 250 VAC, this fuse is suitable for a broad range of residential, commercial, and industrial electrical systems.

Features and Benefits

• Time-Delay Technology: Allows brief inrush currents to pass while protecting against sustained overloads and short circuits, reducing nuisance trips in motor circuits.
• Dual-Element Design: Permits closer sizing to the actual load for superior protection while accommodating startup surges without compromise.
• High Interrupt Rating: 200 kA at 250 VAC ensures reliable operation in high-fault-current environments.
• Energy Efficient: Delivers 23% greater energy efficiency compared to conventional fuses, contributing to overall system performance.
• Class RK5 UL Listed: Meets rigorous safety standards and permits use only in Class R fuse blocks for proper installation.
• Easy Replacement: FRN-R cartridge design with ferrule ends enables quick and secure installation, minimizing downtime.

Specifications

• Brand: Bussmann
• Model: BP/FRN-R-50ID
• Amperage Rating: 50 A
• Voltage Rating: 250 V
• Interrupt Rating: 20 kA at 125 VDC, 200 kA at 250 VAC
• Fuse Type: FRN-R Cartridge
• Class: RK5
• Design: Dual-element, time-delay
• Pack Quantity: 2
• UL Listed: Yes

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.