The Schneider Electric LUCA32FUTQ is a standard control unit in the TeSys U motor starter range, designed for basic protection of 3-phase motors — overload and short-circuit protection with manual reset, plus earth fault and phase failure/ imbalance detection. Rated for motor power up to 15 kW at 400-440 V AC (50/60 Hz), 15 kW at 500 V, and 18.5 kW at 690 V, it covers a wide band of standard low-voltage industrial motors. The control circuit accepts 110-240 V AC or 110-220 V DC, with dropout at 55 V for either supply — a useful margin for brownout ride-through on a line.
The LUCA32FUTQ carries utilisation categories AC-41, AC-43, and AC-44 per IEC 60947-6-2. AC-41 covers resistive loads; AC-43 and AC-44 cover motor starting and switching under normal and occasional overload conditions — so this unit is qualified for the full motor-starting duty cycle, not just steady-state protection. Thermal overload class 10 per IEC 60947-6-2, with temperature compensation from -25 to 70 °C.