Normally open relay, 12V, relay switch, four pole relay Developed to be durable and robust through accurate processing and the use of ideal-quality materials: allows for up to 250 000 switching cycles 12V 40A relay: rated switching currents of up to 40 A - For high power Temperature resistant design: provides the ability to cope with ambient temperatures reaching from -40 Degree C up to +85 Degree C Base plate and housing made from fiber-reinforced polyamide: High corrosion resistance Housing: IP5K4, Terminal: IP20