The LAEX3M7 is a replacement contactor coil from the Schneider Electric Easy TeSys Control range, designed to fit LC1E40 through LC1E65 contactor frames. It's the drop-in magnet coil for that size class — if you're rebuilding a contactor or chasing a burnt coil on a panel, this is the part that matches the armature and bobbin geometry. Control voltage is 220 V AC at 50 or 60 Hz, with an operational range of 0.85 to 1.1 times Uc at temperatures below 60 °C. That means the coil reliably picks between about 187 V and 242 V — useful to know if your line voltage sags under load or if you're running off a lightly loaded transformer.
Coil draw and thermal behaviour
Inrush power hits 160 VA at 50 Hz (cos φ 0.75) and 140 VA at 60 Hz, both measured at 20 °C. Once sealed, hold-in drops to 15 VA at 50 Hz and 13 VA at 60 Hz (cos φ 0.3). That's a roughly 10:1 ratio between pull-in and hold — normal for an AC-operated contactor coil, but it means the control transformer supplying this coil needs to be sized for the inrush peak, not the steady-state draw. Coil resistance measures 153.9 Ω at 20 °C, and closed-circuit inductance is 8.64 H. The resistance figure is what you'd check with an ohmmeter to confirm the winding isn't open or shorted before installing it — a reading far off that value means the coil is damaged. The coil is rated for continuous duty within that band — no derating curve published here, but staying inside those limits keeps the insulation within its thermal class.