The Schneider Electric WB1HA220 is a TeSys-range contactor coil designed for CV1B and CV3B contactors.
The inrush power draw is substantial — 155 to 190 W at 20 °C (170 to 200 W at 20 °C on the same line), and 500 to 615 VA at 50 Hz (560 to 675 VA at 60 Hz). That's the spike the control transformer and wiring need to handle on pull-in; steady-state hold-in drops to 22–35 W (60–85 VA at 50 Hz). The average coil resistance is 17.55 ohms at 20 °C, and the closed-circuit inductance is 1.8 H. The control voltage limits are 0.85 to 1.1 times Uc at 50/60 Hz, up to 55 °C ambient, so a saggy 208 V line won't reliably pick this coil — it needs a solid 187 V minimum at the terminals.
Mechanical durability and packaging
Rated for 1,200,000 mechanical cycles. Supplied singly per package.
