Features Extension of Battery Life: 500A Large current DC relay helps extend the life of the battery. General 12V voltage application is a very practical accessory. Prevent the Main Battery Discharge: Large current DC relays can prevent the main battery from discharging and have a stable and reliable structure. Convenient for Installation And Disassembly: High current solenoid auto starter relay has high accuracy, high sensitivity, high stability and durability, convenient installation and disassembly, and strictly made in accordance with standards. Stable and Reliable Structure: Large -current relay uses precision manufacturing technology and sensitive elements, which has a stable and reliable structure and practicality. Application: The main function of high current starter relay is to switch on, it can be used alone, it can be also connected to control to use, but this product does not include additional control relay, and if the controller is connected, it mainly used in the dual battery. Features: 1.It help extend battery life. 2.Universal 12V applications. 3.Prevents primary battery discharge. 4.Made of water resistant black phenolic plastic. 5.The main function of this product is to switch on, it can be used alone, it can be also connected to control to use, but this product does not include additional control relay, and if the controller is connected, it mainly used in the dual battery. Specifications: Product series: auto relay Contact load: high power Contact switching current: 500A Contact switching voltage: 7.8VDC Contact form: transformation type Rated current: 500A Protective features: sealing type Coil power: 12V DC Weight: 235g CONTACT DATA Contact  material: AgSn0_27In_20_33 Contact form: 1H(1A) Contact Ratings: 500A Contact Resistance: 100mMax at 6VDC 1 A Max Switching Current: 500A Max Switching Voltage: 14VDC Max Switching Power: 500A Package Included: 1 x Heavy current relay Package List Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin