ITEM NAME:20A Circuit Breaker 12-24V DC Manual Reset Auto Car Audio Inline Fuse Holder Description: 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, RV's, trolling motors, etc. Specification: Material: Metal+ABS Plastic Voltage: 6V-28V Works with 12-24V DC. Size: Approx 51mmX21mm Package Includes: 1 Piece Circuit Breaker Reset Fuseholder 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.Manual open circuit push button,Self-Testing & Manual Override,No fuse change trouble. Apply in connecting audio power line,Use in place of an inline fuse holder. 1 Piece Circuit Breaker Reset Fuseholder.