Heavy duty 'Make & Break' relay suitable for On/Off applications where the ability to switch a higher current from a low source is needed.Normally Open configuration, the relay has an open circuit at rest. The integrated fixed allows easy mounting.Can also be used as a split charging relay, simply wire the coil to an ignition feed or to a feed that becomes live when the alternator is charging.M6 studs are for the switched high current circuit and are supplied with lock washers and nutsSupplied IndividuallyVoltage Rating: 12vCurrent Rating: 200A MaxTerminal Configuration: None StandardNumber Of Terminals: 4Terminal Size: 2 x 63mm Male Lucar Terminals (Pins 85 & 86) - 2 x M6 Studs (Pins 30 & 87) Type: FixedMounting Hole Size: 6mmDimensions LxWxH (Including Terminals): 45x45x60 mmcolor: BlackMaterial: ABS+MetalPackage Contents:1X 12V 200A Normally Open 4 Pin Relay1X User manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.