Cooper Bussmann MAX-20 Fast Acting Maxi Blade Fuse 20A

Product Description

The COOPER BUSSMANN MAX-20 is a fast-acting maxi blade automotive fuse rated at 20 amps and 32 volts DC. It protects automotive and light-duty vehicle electrical circuits from overcurrent conditions by opening quickly when current exceeds the rated threshold. The zinc element construction provides consistent, reliable performance across standard 12-volt and 24-volt DC vehicle systems. At 1.35 inches in length, it fits standard maxi blade fuse holders found in underhood and interior fuse centers. This fuse is installed by automotive technicians, fleet electricians, and experienced vehicle service professionals.

The MAX-20 is designed for use in automotive electrical systems where maxi blade fuse holders are specified. Common applications include high-current circuits such as main power feeds, audio system power leads, lighting circuits, and accessory wiring in passenger vehicles, trucks, and light commercial vehicles. Its fast-acting response makes it appropriate for circuits requiring immediate protection without intentional delay. This fuse is sold individually, making it suitable for single-circuit replacement or service kit restocking.

Key Features

• Fast-acting response for immediate overcurrent protection on sensitive automotive circuits
• Maxi blade form factor fits standard underhood and panel-mount maxi fuse holders
• 20 amp rating handles high-current accessory and power-feed applications
• 32 VDC voltage rating supports 12-volt and 24-volt DC vehicle systems
• Zinc element construction provides stable, repeatable trip characteristics
• RoHS 2002/95/EC compliant for use in applications with restricted substance requirements

Compatibility

The MAX-20 is a direct replacement for Littelfuse MAX20 and Ferraz Shawmut AF3-20. It is designed for use in any standard maxi blade automotive fuse holder rated for 20 amps at up to 32 VDC.

Installation Notes

Disconnect the vehicle battery or de-energize the circuit before replacing any fuse. Always replace a blown fuse with one of identical amperage and voltage rating. Inspect the circuit for the root cause of the overcurrent condition before installing a new fuse, as repeated fuse failure indicates an underlying wiring or load fault. Automotive fuse service does not require specialized tools, but a fuse puller reduces the risk of contact damage in tight fuse center locations.