What you've got here
The LC1D80004U7: This is a TeSys Deca four-pole contactor with all normally-open main contacts, rated 125 A in AC-1 duty for resistive heating or lighting loads. Coil is AC 50/60 Hz without a built-in suppressor module — you'll need to add a snubber or free-wheel diode if the control circuit shares a transformer with electronics. Motor power varies by line voltage: 22 kW on 230 V, 37 kW on 400 V, up to 55 kW on 500 V. That means one part number covers multiple incoming supplies — handy if the panel leaves the factory without a fixed voltage yet.
Dimensions: 4.9 × 3.8 × 5 in — rail or plate mount. Thermal dissipation 6–10 W at 50/60 Hz. Mechanical life 4 Mc; electrical life 0.8 Mc at 125 A AC-1.
