Basic devices TeSys U. Basic device, TeSys U, 12A, screw terminals. Rated power 0.1-5.5 kW, 2 directions of rotation, MTZ 13, control voltage 24 V DC. Universal basic devices with pre-wired switching and protection combination, standard up to 12/32 A and with 2 auxiliary contacts (1 NO + 1 NC). Width up to 15 kW only 45 mm (direct and reversing starter), complete coordination according to IEC 947-6-2 (welding-free). TeSys U is a complete motor feeder that includes the functions of a motor protection switch and contactor. With just two basic devices, the power range of 0.1-15 kW is covered. The highlight The control voltage and current range only have to be determined at the last second using a plug-in control unit.