GE Contactor CK type

GE contacts CK type

Contactor is a highly versatile electromagnetic appliances, which can be frequent making and diplomatic relations, the DC main circuit, can realize remote control, mainly used to control the electric motor can also be controlled capacitors, resistors, heaters and lighting appliances and other electrical loads. AC contactor main contacts usually have three pairs, the DC is 2 pairs. Contactor dynamic and static contact is typically placed inside the arc to cover, there is a vacuum contactor moving contact sucked in a vacuum sealed bubble, it has high breaking capacity, long life, high operating frequency, small size and importance light and so on.

    How it works: When the coil working current through the electromagnetic solenoid mechanism mechanism to attract the coil current into electromagnetic force, electromagnetic force to overcome the spring reaction force, so that the convergence and the core is closed, driven by the corresponding contact link mechanism action.

    When you select contacts from their working conditions on departure, the main consideration the following factors:

1, should be used to control AC load AC contactor, control the DC load DC contactors are selected.

2, the contactor utilization category should be consistent with the nature of the load.

3, the main contact rated working voltage should be greater than or equal to the load voltage of the circuit.

4, the main contacts rated current should be greater than or equal to the load current circuit, but also noted that the contactor main contacts rated current contact is under specified conditions (rated voltage, use category, operating frequency, etc.) can the current value of working, not when the actual conditions of use at the same time, the current value post changes.

5, to attract coil rated voltage should be consistent with the control circuit voltage, the contactor coil rated voltage of 85% and above should be able to reliably pull.