TeSys U magnetic control unit to be inserted in power bases LUB12, LUB32, LUB38 to form a TeSys U starter controller, for 3-phase motor applications up to 0.25kW@400V. It provides short circuit protection to motors with a rated current In 0.35-1.4A (In adjustable by dial), overcurrent protection level at 14.2 x In. To be used when a power base is connected to a motor drive or a soft starter providing overload protection. To be used with a 24V DC voltage for the control of the starter (through the control terminals A1/A2 located in the power base). Certified when used in conjunction with a LUB power base (IEC, UL, CSA, CCC, EAC, Marine).