Cooper Bussmann BAF-4 Cartridge Fast-acting Fuse 4A 250V

Product Description

The COOPER BUSSMANN BAF-4 is a cartridge-style, fast-acting fuse rated at 4 amps and 250 volts. It is designed for general-purpose overcurrent protection in electrical circuits where a quick-response fuse is required to protect sensitive components from short-circuit and overload conditions. The BAF-4 features a fiber fuse body and measures 1.5 inches in overall length with a 10.3 mm diameter, making it a standard-sized cartridge fuse compatible with common fuse holders. Electricians and service technicians install this fuse in control panels, HVAC equipment, and other light-duty electrical applications requiring reliable fast-acting protection.

The BAF-4 is suited for use in residential and light commercial electrical systems, HVAC control circuits, and low-voltage equipment where a 250-volt fast-acting cartridge fuse is specified. Its compact cartridge form fits standard fuse holders designed for this diameter and length class. The green fuse body provides a quick visual reference during inspection. This fuse is appropriate for any application calling for a general-purpose fast-acting fuse at 4 amps.

Key Features

• Fast-acting fuse response for protection of sensitive downstream components
• Rated 4 amps at 250 volts for general-purpose overcurrent protection
• Interrupting rating of 200 amps at 250 volts
• Fiber cartridge body measuring 1.5 inches in length and 10.3 mm in diameter
• CE Certified, CSA Certified, and UL Listed for broad compliance coverage
• Mounts in standard cartridge fuse holders

Compatibility

Designed as a general-purpose replacement cartridge fuse for use in standard fuse holders accepting a 10.3 mm diameter, 1.5-inch cartridge fuse at 250 volts and 4 amps.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lock out the circuit before replacing any fuse. Confirm the replacement fuse amperage and voltage rating match the circuit requirements exactly before inserting into the fuse holder. Do not substitute a higher-amperage fuse in place of the specified rating.