How does Lighting Contactor Work?

Lighting contactor Basisc

A lighting contactor is a control device used to turn on, off and logically control the power supply to household appliances, such as cutting off or turning on multiple sets of high-power lights, electrical equipment, etc.

Advantages of Lighting contactor

1. We can easily disconnect or connect the circuit remotely.
   
   
2. We can control the high voltage with low voltage to achieve the purpose of safely cutting off or connecting the high voltage circuit.

These are important links of itelligent control, because common intelligent control interfaces are low voltage.

Today, we're gonna talk about lighting contactor, a fundamental device for switching an electrical power circuit among smart home appliances. Safe and reliable lighting contactor are specifically designed to provide central control of high power lighting loads or motors. The lighting contactor can realize the remote control of the circuit and can control the high voltage with low voltage.

Work principle Test

Working Principle Testing Process：

We will do a testing with lighting contactor. Take the following two contactors for testing, and the equipment used for testing is the bulbs installed in the knob lamp holder in turn.

We have many control voltage options (12V DC/24V DC/220V AC), but this test uses AC110V for explanation. 

The wiring diagram for the two contactors is shown below:

1. First, power on A1 and A2 to control the closing of multiple sets of contacts.
2. Connect live wire and neutral wire to the two bottom terminals respectively.
3. Then, connect the four light bulbs in parallel. (Because it is a low-wattage bulb, we choose to connect them in series. )
4. We use a push button switch to energize or de-energize the coil so as to close or open the contacts.
5. The 4 lights are turned on at the same time in manual mode.When the contactor is disconnected, the pushbutton switch stops working.

Test Results:

This contactor allows the user to turn on lights alternately, Likewise, the pushbutton switch is disabled when the contactor is interrupted.

This is how the contactor performs in auto mode, it can simultaneously switch 4 lights on or off.

ATO Industrial Automation Company's video of testing with lighting contactors is shown below.