TeSys U additional function module to be inserted in advanced power bases LUB120, LUB320, LUB380 for thermal overload alarm. It provides 1NO instantaneous contact rated 2A 230V AC / 24V DC, a LED status on front panel. The alarm is activated when the thermal overload state exceeds 88% of thermal tripping state, with an hysteresis of 5% between activation and deactivation. It is powered by the control unit. Certified when used in conjunction with a LUB power base (IEC, UL, CSA, CCC, EAC, Marine), Green Premium compliant (RoHS/REACh).