ADH 50A High-Voltage DC Relay DC Contactor 12V 24V DC contactor Product Description ADH Series high voltage dc contactor are widely used in electric vehicles, hybrid electrc vehicles, fuel cell cars construction machinery, photovoltaic power generation, wind power,battery charging and discharging system, dc voltage power supply control,and other areas of the dc high voltage. Packaging & Shipping Our Services Company Information FAQ We are looking forward to your enquiry and we will reply you at any time!