Description : Ampere range: 20A-150A High Current Circuit Breaker Voltage: 12V-24V DC For car, boat, marine, bike use, etc. Stops Power Surges from Damaging Your Amps Mount on Panel or Firewall Unique Push Button Reset can also be used as a Kill Switch High Tech water resistant housing Features : Brand new, made with high quality parts. Works with 12v - 24v DC 4/8 awg input & output (4mm in diameter) 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 Manual open circuit push button. Self-Testing & Manual Override. Easy to operate with manual reset arm . No fuse change trouble.