Bussmann LPJ-3-1/2SP Low-Peak Class J Time-Delay Fuse

Bussmann LPJ-3-1/2SP Low-Peak Class J Time-Delay Fuse, 600V

The Bussmann LPJ-3-1/2SP Low-Peak Class J Time-Delay Fuse is engineered to deliver dependable overcurrent protection for demanding industrial, commercial, and institutional electrical systems. Rated 600V, this fuse is part of Bussmann's respected LPJ Low-Peak Class J series, a fuse family widely specified by electrical professionals for code-compliant circuit protection. The time-delay (TD) design allows the LPJ-3-1/2SP to ride through the temporary inrush currents typical of motors, transformers, and other inductive loads without nuisance opening, while still responding quickly to sustained overcurrent conditions. Its Class J form factor is sized to install in standard Class J fuse blocks and holders, helping ensure the correct fuse is used in the correct application. Electricians and maintenance teams rely on the Bussmann LPJ-3-1/2SP for consistent, code-compliant performance in panelboards, switchboards, and branch-circuit protection assemblies. Whether used in new installations or as a direct replacement during maintenance, the LPJ-3-1/2SP is manufactured to help support safe, reliable circuit protection.

Key Features

• Voltage Rating: Rated 600V, suitable for higher-voltage industrial and commercial power distribution equipment and branch circuits.
• Class J Fuse Design: Class J construction (LPJ Low-Peak series) provides a compact, standardized form factor sized specifically for Class J fuse blocks and holders.
• Time-Delay (TD) Operation: Time-delay construction allows the fuse to tolerate momentary current surges from motor starting and transformer inrush without opening unnecessarily.
• Low-Peak Series: Part of Bussmann's LPJ Low-Peak Class J fuse family, developed for dependable overcurrent protection in professional electrical applications.
• Model Designation: LPJ-3-1/2SP model number provides accurate identification for specification and replacement in the field.
• Dependable Circuit Protection: Designed to help protect conductors, equipment, and connected loads from damaging overcurrent conditions.
• Standardized Class J Sizing: The Class J footprint is distinct from other fuse classes, helping reduce the risk of installing an incorrect fuse type in a Class J fuse holder.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Industrial and Commercial Power Distribution Systems
• Motor, HVAC, and Equipment Branch Circuits
• Electrical Panelboards, Switchboards, and Fuse Blocks
• 600V-Rated Overcurrent Protection Assemblies
• Fuse Replacement and Maintenance Programs
• Renovation, Retrofit, and New Construction Electrical Projects

Why Bussmann?

Bussmann is a trusted name in circuit protection, and the LPJ Low-Peak Class J series reflects that reputation with a 600V-rated, time-delay fuse built for demanding electrical environments. The LPJ-3-1/2SP combines the standardized Class J form factor with time-delay performance, giving electrical contractors and facility maintenance teams a dependable component for professional-grade power distribution and overcurrent protection.