FRN-R Series BP/FRN-R-45 Fuse, 45 A, 250 VAC, 125 VDC, 20, 200 KA Interrupt, Fiberglass Body, RK5

The Bussmann BP/FRN-R-45 is a time-delay cartridge fuse designed to provide motor overload, ground fault, and short-circuit protection in electrical systems. This fuse helps protect motors against burnout from overloads and single phasing on three-phase systems, making it essential for industrial machinery, commercial power distribution panels, HVAC systems, and other demanding applications where reliable circuit protection is critical.

The FRN-R time-delay characteristic allows temporary inrush currents to pass without nuisance tripping, reducing unwanted shutdowns during motor start-up. The fuse will hold an overload five times greater than its 45-amp rating for a minimum of ten seconds, protecting equipment while accommodating normal surge conditions. This engineered response protects critical equipment while minimizing downtime for electricians, maintenance teams, and system designers.

Features and Benefits

• 45-Amp Rating: Handles heavy-duty loads in industrial and commercial applications requiring strict amperage limits.
• Time-Delay Design: Allows temporary surges to pass without nuisance tripping, ideal for motor start-up conditions and inrush current protection.
• 250 VAC / 125 VDC Rating: Suitable for low-voltage networks commonly found in factories, commercial buildings, and HVAC systems.
• High Interrupt Rating: 200 kA VAC and 20 kA VDC interrupt capacity ensures reliable fault protection.
• Fiberglass Construction: Provides excellent insulation, strength, and durability for consistent performance.
• Compact Dimensions: Measures 2.375 in. × 1.375 in. × 0.50 in., fitting standard fuse holders and saving panel space.
• Two-Pack Quantity: Convenient packaging for easy inventory management and quick replacement.

Specifications

• Brand: Cooper Bussmann
• Model: BP/FRN-R-45
• Current Rating: 45 Amps
• Voltage: 250 VAC / 125 VDC maximum
• Interrupt Rating: 200 kA VAC, 20 kA VDC
• Fuse Type: FRN-R Time-Delay Cartridge
• Material: Fiberglass
• Dimensions: 2.375 in. L × 1.375 in. W × 0.50 in. H
• Quantity: 2-Pack
• Certifications: UL Listed, CSA Certified

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