Item Name: Camper 12V AMP 500A Relay Dual Battery Isolator On/Off Power Switch Car Starter. Operate Time: 25msName:Car Starter Dual Battery Isolator RelayMaterial: Metal/PlasticDielectric Strength Between Open Contacts 500VAC (for one minute/sec)Release Time: 10msShock Resistance:Operations Extremes: 10g,Damage Limits: 100gSize app: 5*7.4*7.6cm,Bottom Hole Max Length 6.7cm,Bolt Dia 0.8cmVibration Resistance: 10 to 55Hz, 1.5mmBetween Contact and coil: 750VAC (for one minute/sec)Temperature Range: -30Celsius to +80CelsiusType: Starter Solenoid RelayColor:BlackInsulation Resistance: 100m ohm Min at 500VDCPackage Includes:1* 500A RelayNote:1.Please allow 1-3mm error due to manual measurement. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! *Please make