The Schneider Electric WB1EA432 is a contactor coil from the TeSys range, designed as a replacement or spare coil for CV1B and CV3B contactors. It operates on a 450 V AC 60 Hz control circuit and is classified as a low-consumption coil type. The coil draws an inrush power of 75...95 W (225...275 VA at 60 Hz) and holds in at 10...13 W (35...55 VA at 60 Hz), with an average resistance of 199.1 Ohm at 68 °F (20 °C). The inductance of the closed circuit is 12 H.
The 450 V AC 60 Hz control circuit voltage is the operating voltage the coil is wound for. The operational limits are 0.85...1.1 Uc at 60 Hz (at <131 °F / 55 °C), so the coil will pick up reliably down to about 382 V AC and must not see sustained voltage above 495 V AC at the coil terminals. The inrush-to-hold power ratio (75-95 W inrush vs 10-13 W hold) is typical for AC-operated contactor coils — the high inrush ensures fast, positive closure, while the lower hold power reduces thermal stress and energy consumption during continuous operation.
