ITEM NAME:1pc 12V DC 40A AMP Car Trunk Boat Circuit Breaker Inverter Holder Waterproof Description : Easy to use and durable . Function : prevent excessive current , protect the electrical appliance . Apply in connecting audio power line . Use in place of an inline fuse holder . Suitable for car audio / video system overload protection . Specification : Manual open circuit push button . Self - Testing & amp ; Manual Override . Easy to operate with manual reset arm . No fuse change trouble . Can be mounted on panel or firewall . Ampere range : 40A Size : Approx . 100x 40x 40mm / 3 . 94x 1 . 57x 1 . 57inch Package Includes : 1 Piece Circuit Breaker Note : Due to the light and screen setting difference , the item 39 ; s color may be slightly different from the pictures . Please allow slight dimension difference due to different manual measurement . SKU: DMO0009795460002129.Ampere range : 40A. 1 Piece Circuit Breaker. Use in place of an inline fuse holder. No fuse change trouble. Manual open circuit push button. Can be mounted on panel or firewall. Suitable for car audio / video system overload protection.