Cooper Bussmann ATM-20 Fast Acting Mini Blade Fuse 20A

Product Description

The COOPER BUSSMANN ATM-20 is a fast-acting mini blade automotive fuse rated at 20 amps and 32 volts DC. It is designed for overcurrent protection in automotive electrical systems and low-voltage control circuits where a compact, reliable fuse is required. The housing is constructed from polyamide with silver-plated zinc terminals and element. At 0.43 inches in overall length, it fits standard mini blade fuse holders found throughout light-duty vehicles and equipment. Licensed technicians and auto electricians install this fuse as a direct replacement during routine electrical service or troubleshooting.

The ATM-20 is suited for use in passenger vehicles, light trucks, motorcycles, marine applications, and low-voltage control circuit panels. Its mini blade form factor fits fuse blocks and holders designed to the ATM series standard. This fuse is commonly installed in underhood fuse boxes, in-line fuse holders, and auxiliary fuse panels where space is limited and fast-acting protection is required. It complies with ISO 8820-3, JASO D612, and SAE J2077 and J1171 ignition protection standards, making it appropriate for marine and mobile equipment where ignition protection compliance is required.

Key Features

• Fast-acting response for quick overcurrent interruption in automotive and low-voltage circuits
• Mini blade style fits ATM-series fuse holders and standard mini blade fuse blocks
• Polyamide housing with silver-plated zinc terminals and element for corrosion resistance
• Compact size: 0.43 inches long, 0.15 inches wide, 1.6 inches overall height
• Meets ISO 8820-3, JASO D612, SAE J2077 and J1171 ignition protection, RoHS, and UL Listed (Guide FHXT, File AU169)
• Yellow color coding for quick 20-amp identification at the fuse block

Compatibility

The ATM-20 is a direct replacement for Littelfuse MIN020 and Ferraz Shawmut AF2-20. It is compatible with any fuse holder or fuse block designed for the ATM mini blade series.

Installation Notes

Installation is performed by automotive technicians or electricians servicing vehicle or low-voltage control circuit panels. Always disconnect the battery or de-energize the circuit before replacing a fuse. Verify the replacement fuse amperage matches the circuit requirement exactly — never substitute a higher-rated fuse to resolve a repeated blow. Refer to the vehicle or equipment wiring diagram to confirm proper fuse sizing before installation.