DC 12V - 24V Automatic Reset Circuit Breaker Stud Bolt for Automotive and More (20/30/40/50 A) Features: Never worry about fuse burn-out with thermal automatic reset feature, power protected when circuit is overloaded / shorting by this overcurrent circuit breaker. Compact and lightweight design. Easy to use. Long service life. Battery chargers, trucks, buses, RVs, trolling motors etc. Specifications: Voltage: 14-28V DC Rated current: 20A/30A/40A/50A(optional) Installation: Portrait/Landscape Reset type: T1 auto reset Length:Approx.4.9cm/1.93'' Net Weight:25g Package Includes: 1Set Auto Reset Circuit Breaker Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.