Value Collection BD--29539-ID RK5 300A Time Delay Cartridge Fuse

Product Description

The VALUE COLLECTION BD--29539-ID is a cartridge-style, time delay fuse rated at 300 amps and classified to the RK5 standard. It is designed for general-purpose overcurrent protection in industrial, commercial, and heavy electrical distribution applications. The bolt-on mount style provides a secure, low-resistance connection in panelboards, fusible disconnects, and motor control centers. The dual-element design allows the fuse to absorb harmless temporary overloads, such as motor inrush current, while still providing fast, reliable clearing on true fault conditions. An integrated indicating function signals a blown fuse state, reducing diagnostic time during service calls. CSA certified construction confirms compliance with recognized safety standards.

This fuse is suited for 300-amp circuits where RK5 class overcurrent protection is required. Typical applications include feeder circuits, motor branch circuits, and service entrance equipment in commercial and light industrial settings. The bolt-on mount design is commonly found in Class R fusible switch gear and high-capacity disconnect assemblies. Electricians working on motor-driven equipment will benefit from the time delay characteristic, which prevents nuisance openings during startup without sacrificing protection under sustained fault conditions.

Key Features

• 300-amp rating with RK5 class construction for high-capacity general-purpose protection
• Time delay dual-element design handles motor inrush without nuisance trips
• Bolt-on mount for secure, low-resistance installation in fusible disconnects and panelboards
• Indicating function provides visible blown-fuse notification to speed up troubleshooting
• CSA certified to recognized electrical safety standards
• Cartridge body type compatible with standard RK5 class fuse holders and clips

Compatibility

Designed as an OEM-style replacement for RK5 class cartridge fuse positions in bolt-on fusible disconnects and distribution equipment rated for 300-amp general-purpose overcurrent protection.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit at the upstream disconnect before handling or replacing any fuse. Verify that the replacement fuse class, ampere rating, and voltage rating match the requirements of the circuit and the fuse holder before installation. Do not use a higher-ampere-rated fuse as a substitute for a blown fuse without first identifying and correcting the root cause of the overcurrent condition.