The TeSys U control and diagnostic unit is inserted in the LUB380 advanced power bases to form a TeSys U starter controller for 3-phase motor applications up to 18.5kW@400V. It offers full protection for motors with rated current Ir 9.5-38A (Ir adjustable), overload trip class 10, short circuit at 13 x Irmax, overcurrent at 14.2 x Ir, phase failure, insulation fault (equipment protection only). It has a thermal overload alarm that can be used locally via a LUFDA module or remotely via a LULC module, and a test button for simulating an overload. For use with a 24V DC voltage for starter control (via control terminals A1/A2 in the power base). Certified when used in conjunction with a LUB power socket (IEC, UL, CSA, CCC, EAC), Green Premium Product (RoHS/REACh).