Bussmann BP/FRN-R-20 20A Fusetron Time-Delay Fuse – 2 Pack, 250V UL Listed

Overview

The Bussmann BP/FRN-R-20 Fusetron is a rugged two‑pack designed for motor protection in demanding electrical systems. With a 20 amp rating and a 250 volt capability, these UL Listed Class RK5 cartridge fuses are built to shield motors and the circuits that feed them, helping systems run smoothly and minimize downtime.

Why time-delay matters for motors

Fast protection for short circuits

In a short‑circuit event, the dual‑element construction responds quickly to interrupt the circuit, helping minimize damage and downtime. The device is UL Listed Class RK5, suitable for coordinated protection schemes in many panels.

Key features and benefits

• Heavy‑duty, dual‑element, time‑delay cartridge fuse for motor and main panel protection.
• Allows startup surges while guarding against burnout from overloads and single‑phasing on three‑phase systems.
• Dual‑element design provides reliable short‑circuit and overload protection for demanding loads.
• Suitable for general lighting or electric heating circuits when used for non‑time‑delay applications.
• Offers motor overload and short‑circuit protection, aiding selective coordination in panels.
• Groove in end cap or notch in knife blade permits use in Class H, K, or R fuse blocks.
• Designed to withstand higher amps and voltages up to 600Vac and 600A in compatible configurations.

Specifications and installation notes

Dimensions are 2.375 inches long, 1.375 inches wide, and 0.25 inches high. The fuse is UL Listed Class RK5 with an IR rating of 200kA. It is compatible with a range of fuse blocks and can be used across industrial, commercial, and some residential applications where motor protection is needed.

What you get

This listing includes a pack of two fuses, allowing you to protect multiple motors or circuits and maintain readiness for replacements in your protection scheme.