Features: Suitable for 12V/24V systems, this 40A auto reset circuit breaker with red protective sleeves ensures reliable overcurrent protections and automatic restoration after tripping. With IP66 waterproof plastic housing, wide temperature tolerance ( 40°C to 85°C), and ignitions protections compliance for extreme environment. Ideal for automotive enthusiasts, marine engineers, and campers owners requiring electrical safeguards for high power devices. Secure protects battery charging, radio system, and motors in trucks, boats, trailers, or industrial equipment exposed to moisture and vibration. Includes 2Pcs 40A circuit breaker ,2Pcs Waterproof Cover and 4pcs Screws for quick installation across multiple 12V/24V applications. Specifications: Component:ABS Rating voltages: DC6V-28V Rating current: 40A Package Includes: 2Pcs 40A Circuit Breaker 2Pcs Waterproof Cover 4Pcs Screw note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.