Bussmann LPJ-450SP Low-Peak Fuse, 450 A, Class J, Time Delay, 600 Vac, 300 Vdc

Description

Features

• Engineered with a heavy-duty 600VAC and 300VDC dual-voltage capability, this Class J fuse delivers versatile overcurrent protection across diverse power setups. It seamlessly safeguards heavy industrial machinery, commercial HVAC chillers, and large scale DC distribution networks, minimizing inventory costs by standardizing on a single, ultra-reliable fuse body.
• Featuring a sophisticated time-delay design, the LPJ-450SP tolerates harmless temporary current surges such as a large motor drawing up to 500% of its rated current during startup for up to 10 seconds without blowing. This advanced thermal-magnetic balancing eliminates expensive downtime caused by accidental trips while still providing immediate, high-speed interruption if a true short-circuit occurs.
• Boasting a massive 300kA interrupting capacity at 600VAC, this Low-PeakTM fuse provides maximum safety by effortlessly extinguishing extreme short-circuit faults. This exceptional current-limiting threshold dramatically limits destructive electromagnetic and thermal energy, protecting downstream components like contactors and VFDs from severe arc-flash distortion and preserving your panel's short-circuit current rating (SCCR).
• Designed with standard Class J blade terminals and a compact structural footprint, this 450-amp fuse slots cleanly into matching heavy-duty safety switches and centralized distribution panels. The solid, bolt-down mounting tabs ensure a low-resistance, high-torque electrical connection that minimizes localized thermal buildup and prevents vibration loosening in heavy industrial manufacturing environments.

Documentation & Downloads

Specifications