S: Our battery disconnect switches are constructed with brass and copper components featuring a tinned core and insulated ABS plastic housing. The tinning process enhances oxidation and discoloration resistance of the copper while maintaining excellent conductivity, providing extended rust protection. Designed to withstand harsh marine environments, this power switch ensures safety and prolonged service life.HIGH SAFETY: This battery disconnect switch is engineered for safety. When a vehicle or boat is not in use, it safely cuts off the power supply to the battery, preventing parasitic drain and preserving battery life without affecting the vehicle's electrical system.WIDE APPLICATION: These waterproof battery isolator switches feature a compact and durable design, making them ideal for installation on cars, buses, RVs, SUVs, motorcycles, trucks, pickup trucks, yachts, and other vehicles. Suitable for use as a main battery disconnect switch across various applications.BATTERY SWITCH SPECIFICATIONS: Rated for up to 150 A intermittent current and 100 A continuous current at a maximum of 32 VDC. Cranking capacity: 500 A for 5 seconds. Contact resistance: 50 m. Insulation resistance: minimum 100 M at 500 VDC. Mounting bolt diameter: 6 mm.EASY TO USE: Equipped with clear ON/OFF markings for easy operation. "ON" indicates circuit closed (power enabled), "OFF" indicates circuit open (power disconnected). The locking cap can be pulled out and removed to prevent accidental activation. Simply rotate the switch handle to achieve the desired position.