Description: 【High Power and Versatile】: This RV Marine Boat High Power DC Disconnect Switch is a 4 level on/off switch, providing reliable protection for your boat's electrical system. 【User Friendly Rotary Design】: The battery isolator switch features a user friendly rotary design, allowing you to easily control and manage your boat's power supply with precision. 【Premium and Safe】: Made from ABS, brass, and iron materials, this DC battery selector switch is wear resistant and built to last It also features insulation and flame retardant properties ensuring safe operation in marine environments. 【Waterproof Protection】: This black colored battery power cut switch offers waterproof protection designed to withstand harsh conditions. It keeps your boat's electrical system safe from wind and rain. 【Product Specifications】: Rated current of 300A and maximum v of 6-32V. Specification: 11.5cmx13.4cm/4.53inchx5.28inch   Material: ABS, Brass, Iron Color: Black Size Chart: Rated current: 300A Maximum v: 6-32V Package Includes: 1X on OFF Battery Switch Note: Please allow slightly errors due to manual measurement and different monitors.