HIGH QUALITY This battery circuit breaker switch is made of solid ABS + metal, sturdy and resistant to aging and wear, ensuring maximum strength and durability for long-term use. < p>Waterproof CoverWaterproof top cover to better protect the keyhole. Professional functions and high reliability. Compact size, modern and stylish appearance, easy to install. Safely Disconnect the Battery This battery switch isolator can eliminate all battery power consumption and safely disconnect the battery when the vehicle or boat is not in use. 2 positions: on and off Battery Disconnect SwitchThey are provided as main battery disconnect switches and are rated at 150 amps intermittent and 100 amps maximum continuous. 32 V DC; nominal starting value: 500 A for 5 seconds; contact resistance: 50M ohms max. Insulation Resistance: Minimum 500V DC 100 Mohms. Wide Application: The waterproof battery isolation switch is ideal for cars, SUVs, trucks, motorcycles, yachts, boats and more. [Package size]: 6.8 x 5.8 x 5.1 cm. Note: The data is all measured manually. Due to differences in light and display, please allow 1-3cm error. Please refer to the actual item received.