Heavy duty on or off (ON/OFF) relay perfect for 12V universal applications, Product: 5-pin 12V heavy duty 250A split charge relay. Size: 45mm(L) x 45mm(W) x 45mm(H), about 1.77inch(L) x 1.77inch(W) x 1.77inch(H) Input voltage: 12V, (working voltage and charging voltage) Continuous current: 200A/100A, 100A/60A (normally open) Peak current: 250A/120A, 150A/100A (normally open) Auto connect voltage: 6.8V-8.5V, 14.4 V-16.8V Auto-off voltage: 1.2V-3V, 2.4V-7.2V Over voltage: 14V, 28V Universal application can be used in cars, RVs, tractors, construction vehicles, etc. Large vehicles start. Color: Black Material: Plastic + Metal Package Contents: 2 * 12V 250A 5-Pin Normally Open Relay Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.