Enclosed DOL starter with emergency stop — TeSys LG7K06Q710A04
The TeSys LG7K06Q710A04 is an enclosed direct-on-line starter combining a contactor and circuit-breaker in a single IP55 polycarbonate enclosure, with a mushroom-head push-button emergency stop on the front. It is rated for AC-3 motor switching and carries a thermal protection adjustment range of 4 to 6.3 A, so it covers small three-phase motors up to 3 kW at 440 V AC or 2.2 kW at 400/415 V AC. The control circuit voltage is 380/400 V AC 50/60 Hz, meaning the coil is powered directly from a standard European 400 V three-phase supply without a separate control transformer. The unit is built to IEC 60947-4-1 (motor starters) and IEC 60204-1 (machinery electrical safety), so it meets the core standards for industrial machine control panels.
The thermal protection adjustment range of 4 to 6.3 A is the key selection parameter — it determines the full-load motor current the overload relay can protect. For a 3 kW, 440 V motor drawing roughly 5.5 A at full load, this starter sets the dial at about 5.5 A. The AC-3 utilisation category confirms the contactor is rated for switching motor loads (starting, stopping, inching) rather than resistive heating loads.
The polycarbonate enclosure measures 175 mm wide by 165 mm high by 177 mm deep, with four cable entries on top and four on bottom (2 x Pg 13 + 2 x Pg 16 each side). It is designed for wall or machine mounting, not DIN rail — the integrated gland plate accepts standard metric cable glands for a clean panel entry.