4NO Telecommunication 4 Phase 25A Manual Building Contactor for ac unit

From China 4NO Telecommunication 4 Phase 25A Manual Building Contactor

Product description

WCT series home AC contactor is a kind of control electric appliance which is used for long distance switch on and break off sense or low load, electric resistance furnace, household appliances and similar application.

Technical data

Attention

1. Confirm whether the product voltage, current, frequency and use category meet the requirements before use;

2. Connect the control circuit first for no-load operation test and then connect the load in case of no abnormality;

3. Regularly tighten the terminals and remove the deposited dust;

4. Don't make the foreign matters fall into the product

Working principle

The working principle of the contactor: Upon energization, the circuit with current will create a magnetic field and generate sufficient magnetic adhesion to overcome counterforce, close armature and connect the contacts.

When the coil voltage dies out or reduces to a certain value(i.e. at the state of voltage release), for the flux generated at the end face of the armature decreases, the magnetic adhesion becomes weaker than the counterforce generated by the reaction spring, contact spring, etc.

Under the counterforce, the armature will be released and free from the field yoke, and then the contacts will be disconnected.

Dimension

Application