Features: _x000D_ It help extend battery life. _x000D_ Universal 12V applications. _x000D_ Prevents primary battery discharge. _x000D_ Made of water resistant black phenolic plastic. _x000D_ 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. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Product series: auto relay _x000D_ Contact load: high power _x000D_ Contact switching current: 500A _x000D_ Contact switching voltage: 7.8VDC _x000D_ Contact form: transformation type _x000D_ Rated current: 500A _x000D_ Protective features: sealing type _x000D_ Coil power: 12V DC _x000D_ Weight: 235g _x000D_ CONTACT DATA _x000D_ Contact material_x000D_ AgSn0_27In_20_33_x000D_ _x000D_ Contact form_x000D_ _x000D_ 1H(1A)_x000D_ _x000D_ Contact Ratings_x000D_ 500A_x000D_ _x000D_ Contact Resistance_x000D_ 100mMax at 6VDC 1 A_x000D_ _x000D_ Max Switching Current _x000D_ _x000D_ 500A_x000D_ _x000D_ Max Switching Voltage_x000D_ 14VDC_x000D_ _x000D_ Max Switching Power _x000D_ _x000D_ 500A_x000D_ _x000D_ Life Expectancy Electrical_x000D_ 100,000 Operations(at 30 Operations/minute)_x000D_ _x000D_ Life Expectancy Mechanic_x000D_ 10,000,000 Operations_x000D_ _x000D_ _x000D_ COIL SPECIFICATION _x000D_ Nominal Voltage (VDC)_x000D_ Coil Resistance()_x000D_ Max Operate Voltage (VDC)_x000D_ Mix Release Voltage (VDC)_x000D_ Max Applicable Voltage (VDC)_x000D_ _x000D_ 12_x000D_ 16_x000D_ 8_x000D_ 1.2_x000D_ 14_x000D_ _x000D_ 9_x000D_ _x000D_ _x000D_ _x000D_ CHARACTERISTICS:_x000D_ _x000D_ Temperature Range_x000D_ -30~80 _x000D_ _x000D_ _x000D_ Vibration Resistance_x000D_ 10-55Hz,1.5mm_x000D_ _x000D_ Shock Resistance Operations Extremes _x000D_ Damage Limits _x000D_ _x000D_ 50g_x000D_ _x000D_ 100g_x000D_ _x000D_ Humidity_x000D_ 40-85%_x000D_ _x000D_ Insulation Resistance_x000D_ 100m min at 500vdc_x000D_ _x000D_ Safety Standard_x000D_ _x000D_ _x000D_ Dielectric Strength Between Open Contacts_x000D_ 2000VAC(for 1 minuter/s)_x000D_ _x000D_ Between Contacts and coil_x000D_ 1500VAC(for 1 minuter/s)_x000D_ _x000D_ Operate Time_x000D_ 50ms_x000D_ _x000D_ Release Time_x000D_ 50ms_x000D_ _x000D_ _x000D_ Package Included: _x000D_ 1 x Heavy current relay 1It help extend battery life 2Universal 12V applications 3Prevents primary battery discharge 4Made of water resistant black phenolic plastic 5The main function of this product is to switch on, it can be used alone, it can be also connected to control to use