Function: suitable for car audio/video system overload protection,prevent excessive current, protect the electrical appliance.Apply in connecting audio power line,Use in place of an inline fuse holder.Manual open circuit push button,Self-Testing Manual Override,No fuse change trouble.Can be mounted on panel or firewall,works with 12v-24v DC.Applications: Battery chargers, audio, auto, trucks, buses, marine, RVs, trolling motors, etc. Specification: Working voltage: 6V-28V. Working temperature: -40f-185f (-40c-85c) Product waterproofing grade: IP66 waterproof Interrupt rating: 2.5KA @ 12Vdc Size: Approx 45*30*30mm Wiring: golden head BAT (incoming line) silver head AUX (outgoing) Package Includes: 1 Piece Circuit Breaker Reset Fuseholder with Cover Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)Please check the size measurement and the picture carefully before making payment.Dueto the difference between different monitors, the picture may notreflect the actual color of the item. Please understand,Thank you.