Bussmann Bp/frn-r-20 Time-delay Cartridge Fuse, 20a, 250v, 2-pk.

The Bussmann BP/FRN-R-20 is a time-delay cartridge fuse engineered to protect motors and heavy-duty electrical circuits from overload, ground fault, and short-circuit damage. This 20-amp, 250-volt fuse is designed for motor circuits, transformers, and demanding industrial and commercial installations where temporary current surges are common. The time-delay (slow-blow) characteristic allows brief surge currents to pass through without interrupting normal operation, reducing nuisance trips while still safeguarding against sustained overloads and preventing equipment burnout.

A key advantage of this fuse is its ability to hold an overload five times greater than its 20-amp rating for a minimum of ten seconds, making it ideal for applications where motors draw higher starting currents. It also protects against single phasing on three-phase systems, a condition that can cause motor burnout if left unaddressed. The two-pack ensures you have a spare fuse on hand for quick replacements, minimizing downtime in critical power circuits.

Features and Benefits

• 20-Amp Rating: Provides precise protection for motor circuits, transformers, and other heavy-duty loads requiring steady current control.
• Time-Delay Design: Tolerates temporary overloads and starting surges while still protecting against sustained overcurrent, reducing false trips.
• 250V / 125V DC Rating: Compatible with low-voltage industrial, commercial, and residential electrical systems.
• Motor Overload Protection: Helps prevent motor burnout from overloads and single phasing on three-phase systems.
• Compact Cartridge Form: Fits standard FRN-R fuse holders and panels, simplifying installation and space management.
• Trusted Quality: UL listed and CSA certified, backed by Bussmann's reputation for durability and consistent performance.
• Two-Pack Convenience: Includes spare fuse for quick service calls and equipment maintenance.

Specifications

• Brand: Bussmann
• Model: BP/FRN-R-20
• Amperage: 20A
• Voltage: 250V AC / 125V DC
• Interrupt Rating: 200 kA
• Time-Delay: Holds 5× ampere rating for minimum 10 seconds
• Body Material: Fiberglass
• Certifications: UL listed, CSA certified
• Count: 2 fuses per package