Feature: 1. Perfect Application: The heavy duty starter relay isolator on off is specially designed for multi‑battery system forklift engineering automotive to meet your demands. 2. Powerful Function: The car starter relay isolator switch could effectively prevent primary battery discharge, bring you more convenience. 3. High Quality Materials: The car starter relay is made of water resistant black phenolic plastic and red copper binding post, ensuring heavy current can be transited safely. 4. Excellent Performance: The rated voltage is 12VDC, maximum instantaneous through current is 500A, and Work long time current is 200A maximum. 5. Safe Current Transfer: The auto start contactor greatly makes sure the maximum electric current can be transferred safely, higher working efficiency. Specification: Item Type: Car Starter Relay Material: Copper + Plastic Contact Form: 1H(1A) Contact Ratings: 500A Contact Resistance: 100m Maximum at 6VDC 1A Maximum Switching Current: 500A Maximum Switching Voltage: 14VDC Maximum Switching Power: 500A Life Expectancy Electrical: 100,000 Operations (at 30Operations/minute) Coil Specification Nominal Voltage: 12VDC Coil Resistance: 1.6W Maximum Operate Voltage: 8VDC Mix Release Voltage: 1.2VDC Maximum Applicable Voltage: 14VDC Characteristics Temperature Range: -30℃ to +80℃ Vibration Resistance: 10-55hz ,1.5mm Humidity: 40%-85% insulation Resistance: 100mΩ Min at 500VDC Dielectric Strength Between Open Contacts: 2000 VAC (for one minute/sec) Between Contactw and Coil: 1500VAC( for one minute/sec) Operate Tice: 50ms Release Tice: 50ms. Package List: 1 x Car Starter Relay