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The COOPER BUSSMANN LPJ-10SPI is a Class J time-delay cartridge fuse rated at 10 amps for use in industrial and commercial electrical systems. The cartridge body measures 20.6 mm in diameter and 2.25 inches in overall length. It features a dual-element, indicating design that provides a visual signal when the fuse has opened. With an interrupting rating of 100 kA at DC and 300 kA at AC (RMS), this fuse is built for high-fault-current environments where equipment protection is critical. Licensed electricians and maintenance technicians typically install this fuse in Class J fuse holders.
The LPJ-10SPI is suited for general-purpose branch circuit and equipment protection in residential, commercial, and light industrial applications. Its time-delay characteristic allows it to ride through normal motor inrush currents without nuisance opening, while still providing fast response to sustained overloads and short circuits. The indicating feature simplifies troubleshooting by providing a clear visual confirmation of a blown fuse without requiring a meter.
Designed for use in Class J fuse holders and panels that accept Class J cartridge fuses rated for 10 amps.
Installation should be performed by a licensed electrician in accordance with NEC requirements. Always de-energize and verify absence of voltage before removing or inserting any fuse. Use only a properly rated Class J fuse holder for this fuse body size and class. Do not substitute a fuse of a different class or higher amperage rating.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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