The Schneider Electric WB1EA970 is a low-consumption contactor coil in the TeSys range. It accepts dual control voltage: 500 V AC at 50-400 Hz or 400 V DC. Rated mechanical durability of 1,200,000 cycles and a maximum operating rate of 120 cycles per minute at 55 °C — this coil is built for sustained high-speed switching in production lines, not just occasional isolation duty.
Schneider has marked the WB1EA970 as obsolete.
Inrush power draw of 70-150 W (85-180 VA) at 20 °C, dropping to just 0.25-0.7 W hold-in consumption — that low hold power is the whole point of the low-consumption design, keeping the coil cool in a crowded DIN-rail enclosure and reducing the demand on the control transformer. Sealed operating time of 9 ms means the contacts close fast enough for most motor-starting and switching sequences, but the buyer should verify the pick-up time matches the PLC scan cycle or safety relay timing in their specific circuit. Coil resistance averages 1374.5 ohms at 20 °C — useful for calculating inrush current or verifying the coil is intact with an ohmmeter during troubleshooting.