The claim that a contactor action is mechanically held because it depends on current through the coil is true or false?

• A. Sometimes true
• B. False
• C. Not relevant
• D. True

Answer: (B)

Energizing the coil creates a magnetic field that pulls the armature to close the contacts, but the armature is released by springs when the current is removed. In a standard contactor, the contact state is not mechanically held by the coil once current stops; it relies on the coil current to stay energized, and the springs return the armature to the de-energized position. A latching design would be different, using a permanent magnet or a mechanical latch to hold state without continuous current. So the claim is false for a typical contactor.