Schneider LX1LB300 TeSys Coil, 300 VAC 50/347 VAC 60 Hz, 75

The LX1LB300 is a replacement coil from the TeSys range, built for the control-circuit side of LC1 contactors. It's not a contactor itself — it's the magnet coil that pulls in the contactor armature. Control voltage is 300 V AC at 50 Hz or 347 V AC at 60 Hz, so it matches 277/480 V panel control transformers that step down to a nominal 300 V leg. The inrush is 75 VA at 0.55 power factor; once sealed it drops to 8 VA at 0.28 PF. That inrush matters for transformer sizing — a 75 VA control transformer with a 100% duty rating handles the pull-in, but if you're daisy-chaining multiple coils off one transformer, sum the inrush of the largest simultaneous pick-up, not the sealed VA. Coil resistance is 773 Ω ±10% at 20 °C, inductance 6.6 H. The 6.6 H inductance means the coil current during sealed hold is largely reactive — the real power draw is under 2 W once the armature is seated. That keeps heat down inside the enclosure, which matters if the panel runs warm.