Cooper Bussmann LPN-RK-3-2/10SP Fuse 3.2A RK1

Product Description

The COOPER BUSSMANN LPN-RK-3-2/10SP is a Class RK1 time delay cartridge fuse rated at 3.2 amps for general purpose overcurrent protection. It features a dual-element design that tolerates harmless inrush currents while responding quickly to sustained overloads and short circuits. The fuse body measures 2 inches in overall length and 14.3 mm in diameter, fitting standard RK1 fuse holders. With an interrupting rating of 100 kA DC and 300 kA AC (RMS), it is built for demanding electrical distribution environments. Licensed electricians and industrial maintenance technicians are the typical installers.

This fuse is suited for use in industrial control panels, motor branch circuits, and general purpose electrical distribution systems where Class RK1 time delay protection is specified. The dual-element construction makes it appropriate for motor loads and transformer circuits that experience high startup inrush currents. It is CE Certified, CSA Certified to CSA C22.2 No. 248.12 Class 1422-02 File 53787, and UL Listed under Guide JDDZ File E4273, making it appropriate for installations requiring third-party certification compliance.

Key Features

• Class RK1 time delay cartridge fuse rated at 3.2A for general purpose overcurrent protection
• Dual-element design tolerates motor inrush and transformer magnetizing currents
• High interrupting capacity: 100 kA at DC, 300 kA at AC (RMS)
• Non-indicating design with standard cartridge fuse holder mount type
• UL Listed, CSA Certified, and CE Certified for broad installation compliance
• Compact body: 2 inches overall length, 14.3 mm diameter

Compatibility

Designed as an OEM-style replacement for Class RK1 time delay cartridge fuse positions requiring a 3.2A, 2-inch fuse in standard RK1 fuse holders.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. Always de-energize and lock out the circuit before removing or installing fuses. Verify that the fuse holder is rated for Class RK1 cartridge fuses before installation. Do not substitute a fuse of a higher amperage rating to restore power without first identifying and correcting the cause of the overcurrent condition.