It is rated for a 0.09 kW motor at 400...440 V AC 50/60 Hz, with utilisation categories AC-41, AC-43, and AC-44 covering resistive, mixed, and motor loads. The unit provides manual reset, protection against overload, short-circuit, phase failure, and phase imbalance. The 45 mm wide, 66 mm high, 60 mm deep form factor fits standard TeSys Ultra panel cutouts.
The 0.09 kW motor power rating at 400...440 V AC sets the upper bound for the connected motor — this unit is sized for fractional-horsepower drives, not general-purpose branch circuits. The utilisation categories AC-41 (resistive), AC-43 (mixed resistive-inductive), and AC-44 (motor starting, plugging, inching) tell you the contactor can handle the inrush and switching duty of a small motor, not just a heater load. Rated insulation voltage (Ui) is 690 V per IEC 60947-6-2 and 600 V per UL 60947-4-1 / CSA C22.2 No 60947-4-1 — the UL/CSA derating matters if the panel is listed to North American codes. The control circuit accepts 110...240 V AC or 110...220 V DC, with a drop-out threshold of 55 V for either supply, so it will not nuisance-drop on a sagging line. The tripping threshold is 14.2 x Ir ±20 % — a magnetic-only instantaneous trip that clears hard faults fast. The 35 ms opening time (with LUB12/LUB32/LUB38 control units) and 50 ms closing time are fast enough for motor protection coordination.
The LUCLX6FU carries approvals to EN 60947-6-2, IEC 60947-6-2, UL 60947-4-1 (with phase barrier), and CSA C22.2 No 60947-4-1 (with phase barrier). The UL/CSA listing with phase barrier means it is accepted for North American panels when the barrier is fitted — check the kit part number for the barrier if your panel requires it.
Plug-in mounting on the front face means the unit clips onto a DIN-rail or panel-mounted base — no tools needed for replacement. The IP20 front panel rating allows finger-safe access to the reset button and status indicators inside an enclosed panel.