Working principle of the AC contactor:

Electromagnetic force and the spring force work together to realize the connection and breaking of the contact. AC contactors have two working states: power-off state (release state) and power-on state (action state). When the attraction coil is powered on, the static iron core generates electromagnetic attraction, the armature is attracted, and the connecting rod connected with the armature drives the contact action, so that the normally closed contact break contactor is in the power-on state; when the attraction coil is powered off, The electromagnetic attraction disappears, the armature is reopening, so that the normally open contact is closed, and released under the action of the position spring, all the contacts are reset, and the contactor is in a power-off state.

Features:

1. Easy to install, changeable components.

2. Realizable control circuit.

3. Motor protection: Overload and short circuit protection; No fuse protection; Fast short circuit response, Manual turn on/off motor, Three-phase or single-phase protection with temperature compensation.

4. Overload relay: Overload and phase failure detection; Automatic or manual reset; Test and stop function; Three-phase or single-phase protection with temperature compensation.