The Schneider Electric TeSys WB1EA550 is a low-consumption contactor coil rated for 550 V AC at 50 Hz, designed specifically for CV1B and CV3B contactors in the TeSys range. It draws 90 to 110 W inrush power (220 to 270 VA at 0.4 power factor) and settles to 13 to 19 W holding power (35 to 55 VA at 0.35 power factor), all measured at 68 °F (20 °C). The coil's closed-circuit inductance is 20 H, with an average resistance of 347 ohms at 68 °F.
This part is officially obsolete per the manufacturer's lifecycle status.
Control circuit voltage limits
The coil operates reliably between 0.85 and 1.1 times the rated control voltage (Uc) at 50 Hz, up to 131 °F (55 °C) ambient.
