Feature: 1. EXCELLENT MATERIAL: This cut off switch adopts ABS plastic shell and copper plated female thread stud, has strong toughness, high hardness and long service life. 2. EASY OPERATION: The battery can be disconnected and reconnected simply by turning the knob on the battery protection switch, convenient and quick to operate. 3. BATTERY PROTECTION: Primarily used to safely disconnect the battery to remove any power draw from the battery when the vehicle or boat is not in use to save energy. 4. WORKING CURRENT: The rated current is 300A, the maximum current is 1000A, is universal for 12V‑60V batteries, with long electrical life, efficient and durable. 5. WIDE APPLICATION: Can be used as a switch for various electrical equipment added inside and outside the car, such as strobe light, chassis light, fog light, dome light, etc. Specification: Item Type: Battery Protection Switch Material: ABS, copper Dielectric Strength: 1500VAC per 1 minute Electrical Life: 10000 times Scope of Application: This product is suitable for professional racing cars, and is also widely used in various RVs. At the same time, this combination switch is often used to modify speed racing cars. Widely used, it can be used as the on off key of various electrical equipment added inside and outside the car (such as: strobe lights, chassis lights, fog lights, dome lights, etc.), and can be powered off instantly.. Package List: 1 x Battery Protection Switch Note: There are errors in manual measurement, and the actual size shall prevail.