Item Name: Dual Battery Isolator 12V AMP 500A Relay On/Off Power Switch Car Starter. Between Contact and coil: 750VAC (for one minute/sec)Color:BlackRelease Time: 10msVibration Resistance: 10 to 55Hz, 1.5mmOperate Time: 25msMaterial: Metal/PlasticShock Resistance:Operations Extremes: 10g,Damage Limits: 100gSize app: 5*7.4*7.6cm,Bottom Hole Max Length 6.7cm,Bolt Dia 0.8cmInsulation Resistance: 100m ohm Min at 500VDCType: Starter Solenoid RelayDielectric Strength Between Open Contacts 500VAC (for one minute/sec)Name:Car Starter Dual Battery Isolator RelayTemperature Range: -30Celsius to +80CelsiusPackage Includes:1* 500A Relay Note: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