Cooper Bussmann LPJ-60SP Class J 60A Time Delay Fuse

Product Description

The COOPER BUSSMANN LPJ-60SP is a Class J time delay cartridge fuse rated at 60 amps, designed for general purpose overcurrent protection in industrial and commercial electrical systems. With an interrupting rating of 300 kA at AC (RMS) and 100 kA at DC, this fuse handles high-fault-current environments where standard fuses fall short. The dual-element design allows it to tolerate temporary motor inrush currents and other harmless overloads without nuisance opening, while still responding quickly to sustained fault conditions. Licensed electricians and electrical maintenance technicians are the typical installers.

The LPJ-60SP is suited for use in panelboards, motor control centers, disconnect switches, and industrial equipment requiring Class J fuse protection. Its 27 mm diameter and 60.30 mm overall length fit standard Class J fuse holders. Applications include motor branch circuits, feeder protection, and equipment where high interrupting capacity is required in a compact fuse form factor. The non-indicating body provides no visual trip signal, so fault verification requires a fuse tester or multimeter during service calls.

Key Features

• 60 amp Class J time delay rating for motor and general purpose circuit protection
• 300 kA interrupting rating at AC (RMS) for high-fault-current environments
• 100 kA interrupting rating at DC for DC bus and battery system applications
• Dual-element construction tolerates motor inrush without nuisance opening
• Non-indicating cartridge body in standard Class J dimensions
• UL Listed, CSA Certified, CE Certified, and RoHS Compliant

Compatibility

Designed for use in Class J fuse holders and disconnect switches that accept 60 amp Class J cartridge fuses with a 27 mm diameter body.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lockout/tagout the circuit before removing or installing fuses. Use an appropriately rated fuse puller for cartridge fuse extraction and insertion — do not handle energized fuse holders with bare hands. Verify the replacement fuse class, amperage, and voltage rating match the circuit requirements before restoring power.