High Power Tolerance: Rated at 300A, this battery switch is able to withstand high power loads, ensuring safe and reliable power cut off and isolation. Double Circuit: The switch can disconnect the positive and negative terminals at the same time, effectively preventing electrical equipment leakage and battery power consumption. 3 Position: The switch has 3 gear positions, including off?1?2, you can choose the appropriate gear according to your needs, conveneint operation and control. Multiple Uses: Applicable for a variety of ships, cars, trucks, trailers and RVS, and can be used for applications such as power outages, anti theft and battery maintenance. Durable Construction: Made from ABS, brass, and iron materials for durability, switch is waterproof and dustproof, which ensures reliable use for a long time.