Cooper Bussmann SFE-20 Fast Acting Automotive Fuse 20A

Product Description

The COOPER BUSSMANN SFE-20 is a fast-acting automotive fuse rated at 20 amps and 32 volts AC/DC. Built with a glass body measuring 1.25 inches in length and 0.25 inches in diameter, it is designed for SFE-series fuse holders commonly found in automotive and light vehicle electrical circuits. The fast-acting response characteristic means it clears overloads and short circuits quickly, protecting wiring harnesses, accessories, and control circuits from sustained fault current. It meets SAE standards and carries UL listing under Guide FHXT, File AU169, making it a recognized replacement option for service and fleet maintenance work.

This fuse is intended for low-voltage automotive circuits operating at 32 volts or below. Typical applications include underhood accessory circuits, instrument panel fuse blocks, and auxiliary circuit protection in passenger vehicles, light trucks, and similar equipment. Automotive technicians and fleet service professionals install this fuse type during routine electrical diagnosis, circuit repair, and preventive maintenance. Cross-reference part numbers Littlefuse 307020 and Ferraz Shawmut FSFE20 are noted in the product data as equivalent replacements.

Key Features

• Fast-acting fuse element clears overcurrent conditions rapidly to protect automotive wiring
• Glass body construction allows visual inspection of the fuse element without removal
• Rated 20 amps at 32 volts AC/DC for low-voltage automotive circuit protection
• Meets SAE standards and is UL Listed under Guide FHXT, File AU169
• SFE series form factor fits standard SFE-style automotive fuse holders
• Cross-references to Littlefuse 307020 and Ferraz Shawmut FSFE20

Compatibility

The COOPER BUSSMANN SFE-20 is designed for use in SFE-series automotive fuse holders rated for circuits up to 32 volts AC/DC. Cross-reference equivalents identified in the product data include Littlefuse 307020 and Ferraz Shawmut FSFE20.

Installation Notes

Automotive fuse replacement should be performed by a qualified technician with the vehicle ignition off and, where applicable, the battery disconnected to prevent arc flash or unintended circuit energization. Always replace a fuse with one of the same amperage and voltage rating. Never substitute a higher-amperage fuse to resolve a repeated blowing condition without first diagnosing the underlying fault. Refer to the vehicle manufacturer wiring diagram and applicable SAE or OEM service procedures.