This is a 12VDC 200A normally open 4-pin start relay The shell is made of high-quality ABS material, the overall structure is strong, and the protection is strong The size of the product is made strictly in accordance with the standard size to prevent the size from being mismatched during use Normally Open configuration, the relay has an open circuit at rest. The integrated fixed bracket allows easy mounting. This product is a start relay which can be used for small crane, wheat combine harvester, car start power switch and car preheat relay Product name: 4-Pin Start Relay Contact form: Normally Open Model:WM686 RL180 Coil power: 1.8W Ambient temperature: -30~+80 Terminal: M6 colour: black Material: ABS Package Contents: 1 x Relay Only 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.