Cooper Bussmann BP/FNM-30 Time Delay Midget Fuse 30A

Product Description

The COOPER BUSSMANN BP/FNM-30 is a Type FNM time delay cartridge midget fuse rated at 30 amps and 32 volts. Sold in a 2-pack, it is designed for low-voltage control circuits where temporary current surges must be tolerated without nuisance tripping. The time delay characteristic allows motor inrush or transformer energization currents to pass without opening, while still providing reliable overcurrent protection under sustained fault conditions. Licensed electricians and HVAC technicians commonly install this fuse class in control panels, HVAC equipment, and light commercial equipment enclosures requiring midget fuse protection.

Type FNM midget fuses are widely used in residential and light commercial applications where a low-voltage, time delay fuse is required in a compact cartridge form factor. Typical installations include HVAC control circuits, motor control centers, small transformer secondary protection, and other low-voltage panel applications where space is limited and a midget fuse block or holder is already in place. The 2-pack carded format suits field service technicians carrying spares on service calls.

Key Features

• 30 amp rating with time delay characteristic for motor and transformer circuit protection
• 32 volt rating suitable for low-voltage control circuit applications
• Type FNM midget cartridge form factor fits standard midget fuse holders and blocks
• 2-pack carded format convenient for field service and bench stock
• Time delay action reduces nuisance tripping from inrush currents

Compatibility

Designed as a direct replacement for Type FNM 30A midget fuses in standard midget fuse holders and panel-mount fuse blocks used in low-voltage control and light commercial electrical applications.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with the National Electrical Code (NEC). Always de-energize and lockout/tagout the circuit before replacing a fuse. Verify the fuse holder is rated for the FNM midget cartridge form factor and confirm the circuit voltage and amperage requirements match the fuse rating before installation. Do not substitute a fuse of a different amperage or delay class.