Cooper Bussmann LPJ-17-1/2SPI Class J Fuse 17.5A

Product Description

The COOPER BUSSMANN LPJ-17-1/2SPI is a Class J time delay cartridge fuse rated at 17.5 amps, designed for general-purpose overcurrent protection in demanding electrical systems. The dual-element, time delay design allows temporary inrush currents to pass without nuisance tripping while still providing fast response to sustained overloads and short circuits. The cartridge body measures 20.6 mm in diameter and 57.2 mm in overall length, fitting standard Class J fuse holders. This fuse is installed by licensed electricians in commercial and industrial panel and disconnect applications.

This fuse is suited for use in commercial and industrial electrical systems where Class J fuse holders are specified. The time delay characteristic makes it a practical choice for motor branch circuits, control panels, and equipment protection where startup inrush currents would otherwise cause nuisance trips with standard fast-acting fuses. It installs in any compatible Class J fuse holder and is sold individually.

Key Features

• 17.5-amp rating with time delay dual-element construction for inrush tolerance
• Class J fuse classification for use in Class J-rated holders and disconnects
• Interrupting capacity of 100 kA at DC and 300 kA at AC (RMS)
• Indicating design provides visual confirmation of a blown fuse condition
• Compact cartridge body: 20.6 mm diameter, 57.2 mm overall length
• UL Listed, CSA Certified, CE Certified, and RoHS Compliant

Compatibility

Designed for installation in Class J fuse holders. Verify holder ampere rating and voltage rating before installation to confirm proper fitment.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NFPA 70 (NEC) requirements for overcurrent protection devices. Always de-energize and lock out the circuit before removing or installing any fuse. Confirm the replacement fuse class, ampere rating, and voltage rating match the circuit requirements before installation. Do not substitute a different fuse class or a higher ampere rating to restore power.