Cooper Bussmann ATM-4 Fast Acting Mini Blade Fuse 4A 32V

Product Description

The COOPER BUSSMANN ATM-4 is a fast-acting mini blade automotive fuse rated at 4 amps and 32 volts DC. It is designed to protect low-voltage automotive and control circuits from overcurrent conditions by opening the circuit rapidly when current exceeds the rated amperage. The housing is made from polyamide and the terminal and element are zinc with a silver-plated finish. At 0.43 inches long and 0.15 inches wide, the ATM-4 fits standard mini blade fuse holders commonly found in automotive fuse panels and low-voltage control circuit applications. Licensed electricians, automotive technicians, and HVAC controls technicians install this fuse type.

The ATM-4 is suited for use in automotive electrical systems and low-voltage control circuits where a mini blade fuse format is required. Its fast-acting response makes it appropriate for circuits that need immediate protection against short-circuit and overload events. This fuse meets ISO 8820-3, JASO D612, SAE J2077, and SAE J1171 ignition protection standards, and is RoHS compliant and UL Listed under Guide FHXT, File AU169. It is sold individually but must be ordered in multiples of 5.

Key Features

• Fast-acting mini blade fuse format for rapid overcurrent response
• Rated 4 amps at 32 volts DC
• Polyamide housing with silver-plated zinc terminal and element
• Meets ISO 8820-3, JASO D612, SAE J2077, SAE J1171, and RoHS requirements
• UL Listed, Guide FHXT, File AU169
• Compact size: 0.43 inches long, 0.15 inches wide

Compatibility

The ATM-4 is a direct replacement for Littelfuse MIN004 and Ferraz Shawmut AF2-4. It fits standard mini blade automotive fuse holders per the ATM series form factor.

Installation Notes

Always disconnect the vehicle or equipment power source before replacing a fuse. Confirm the replacement fuse amperage matches the circuit rating exactly — substituting a higher-amperage fuse can damage wiring or components. Use insulated fuse-pulling tools when removing mini blade fuses from tight fuse panels. Refer to the equipment manufacturer wiring diagram and applicable SAE or NEC guidelines for low-voltage control circuit service.