250+ amps, 12 V DC bistable relay + relay cable. For use with Super B Nomia batteries: Nomia 12V100Ah, Nomia 12V160Ah and Nomia 12V210Ah. - Continuous current limitation 190 A at 85°C - Electrically adjustable and zero-settable ON/OFF pass-through unit - Suitable for voltage levels up to 12 V DC - High peak current carrying capacity up to 1500 A.