ATO starter relays have working ambient temperature -40℃~+125℃. One of the critical features of our high-quality starter relay is its ability to withstand extreme temperatures while maintaining consistent performance. In automotive and industrial applications, the relay is often subjected to intense heat generated by the engine and the surrounding environment. Our good ATO starter relay is built with heat-resistant materials and components that ensure it can operate efficiently even under high thermal stress. This heat resistance is crucial for maintaining performance stability, as it prevents the relay from failing due to overheating, which could otherwise lead to unreliable engine starts and potential damage to the vehicle’s electrical system. ATO automotive starter relays have 2 coil voltage to choose: 12 volt and 24 volt. To adapt to cars with different circuit voltages, users can choose according to the system voltage of the vehicle. Our switching current of starter relays also has a variety of options, currently 30A, 40A, 80A, 100A, 120A and 200A.