Bussmann LPJ Series Low-Peak Dual-Element Class J Time-Delay Fuse, 600V

Bussmann LPJ Series Low-Peak Dual-Element Class J Time-Delay Fuse, 600V

The Bussmann LPJ Series delivers Low-Peak Class J current-limiting fuses engineered for demanding branch-circuit and equipment protection applications, available in ratings from 5A to 500A to match a wide range of overcurrent protection needs. Each dual-element, time-delay fuse in the series is rated 600V (300Vdc) and combines a 10 sec at 500% time-delay characteristic with a high 300 kAIC interrupt rating at 600Vac for dependable performance under fault conditions. Built with bolted blade end x bolted blade end terminals, the LPJ Series is a genuine Bussmann replacement engineered for standard Class J fuse holders and disconnect switches.

Key Features

• Amp Rating Range: Available from 5A to 500A to cover branch-circuit and equipment protection duty across a wide range of load sizes.
• Voltage Rating: 600V (300Vdc) rating supports use across standard commercial and industrial distribution systems.
• Class J Current-Limiting Design: Dual-element construction limits peak let-through current and energy during short-circuit conditions.
• Time-Delay Characteristic: Rated 10 sec at 500% for dependable operation through motor inrush and other temporary overload currents.
• High Interrupt Rating: 300 kAIC interrupt rating at 600Vac (100 kAIC at Vdc) supports use in high fault-current systems.
• Bolted Blade Terminals: Bolted blade end x bolted blade end termination style for a secure, low-resistance connection.
• Standard Low-Peak Series: Part of the Bussmann Low-Peak Series, built for coordinated selective protection in Class J applications.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Branch-Circuit Overcurrent Protection
• Motor and Equipment Circuit Protection
• Industrial Panelboards and Switchboards
• Disconnect Switches and Fuse Holders
• Class J Fuse Replacement Programs

Why Bussmann?

Bussmann fuses are engineered for dependable, code-compliant circuit protection in commercial and industrial electrical systems. The Low-Peak Class J design of the LPJ Series delivers dual-element time-delay operation, a 10 sec at 500% time-delay characteristic, and a high 300 kAIC interrupt rating, giving electricians and engineers a trusted, current-limiting solution across the full 5A to 500A range for critical overcurrent protection where reliable, selective coordination matters.