Cooper Bussmann LPJ-35SPI Class J Time Delay Fuse 35A

Product Description

The COOPER BUSSMANN LPJ-35SPI is a Class J time delay cartridge fuse rated at 35 amps. It is designed for general purpose overcurrent protection in industrial and commercial electrical systems. The fuse features a dual-element, time delay construction that tolerates brief inrush currents without nuisance tripping while still opening quickly under sustained overload or short circuit conditions. It carries an interrupting rating of 300 kA AC (RMS) and 100 kA DC, making it suitable for high-fault-current environments. The LPJ-35SPI includes an indicating function that provides a visual signal when the fuse has operated. Licensed electricians install this fuse in Class J fuse holders per applicable NEC requirements.

The LPJ-35SPI is intended for use in industrial control panels, motor branch circuits, and power distribution equipment where Class J fusing is specified. Its time delay characteristic makes it well suited for motor loads and other circuits that produce harmless startup surges. The indicating feature supports faster troubleshooting during maintenance. This fuse is sold individually but requires a minimum order quantity of 5 units per manufacturer policy.

Key Features

• Class J cartridge fuse with time delay dual-element construction
• 35 amp rating for general purpose overcurrent protection
• 300 kA interrupting rating at AC (RMS) and 100 kA at DC
• Indicating design provides visual confirmation of fuse operation
• Mounts in standard Class J fuse holders
• CE Certified, CSA Certified, UL Listed, and RoHS Compliant

Compatibility

Designed for use in standard Class J fuse holders. Consult the fuse holder manufacturer specifications to confirm current rating, voltage rating, and physical fitment before installation.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit before removing or installing this fuse. Verify that the replacement fuse class, amperage, and voltage rating match the requirements of the circuit and the fuse holder. Do not substitute a fuse of a different class or higher amperage rating.