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A contactor is another name for an electrical relay. It is a device that allows a low current (normal) switch to turn on or off high current equipment such as heaters or air-conditioners that would be well beyond its capacity.

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How is a Blowout coil connected?

A blowout coil connected in series with contactor's auxiliary contacts that shunt around the main contactor contacts. The coil is out of the circuit when the main contactor contacts are closed and in the circuit when the main contactor contacts are open.


What are the parts of magnetic contactor?

There are three main parts of a magnetic contactor. These include the power contacts, contact springs, and the auxiliary contacts.


What is the difference between main contactor and axualiary contactor?

The load contactor is what the motor load is usually connected to. The auxiliary contacts are usually used in the stop start remote wiring to seal the mag in. Auxiliary contacts are also used to transmit the status of the contactor to a PLC.


What is the function of an AC unit contactor and how does it contribute to the overall operation of the air conditioning system?

The function of an AC unit contactor is to control the flow of electricity to the compressor and condenser fan in an air conditioning system. It acts as a switch that allows the system to turn on and off as needed, helping to regulate the temperature in the space. The contactor plays a crucial role in the overall operation of the air conditioning system by ensuring that the components receive the necessary power to function properly.


How does magnetic contactor operate?

explain me about the contactor works with examples. if i want to control a motor with contactor. and how i can use contactor in loops with over load and circuit breakers.


How many main - line contactor assemblies are used in an across the line AC reversing motor?

2


How do you calculate contactor capacity of star contactor?

metres


What is the difference between an definite purpose contactor and a lighting sontactor?

A definite purpose contactor is designed (and rated) for a specific load. So a lighting contactor is one example of a definite purpose contactor. A motor starter contactor is another example. So, a lighting contactor is a definite purpose contactor, but a definite purpose contactor is not necessarily a lighting contactor (it might be a motor starter, for instance).


Why is the compressor contactor not sticking in?

The compressor contactor may not be sticking due to a faulty contactor coil, dirt or debris preventing proper contact, or loose electrical connections. It's important to inspect and test the contactor to determine the exact cause and replace it if necessary to ensure the proper function of the compressor.


What is the function of the air conditioning compressor contactor in regulating the flow of electricity to the compressor unit?

The air conditioning compressor contactor controls the flow of electricity to the compressor unit, allowing it to turn on and off as needed to regulate the temperature in the air conditioning system.


What is the function of contactor?

A contactor is used like a switch. It is used to open and close the circuit it is in series with by electrically energizing and de-energizing the holding coil of the contactor. By having this adaptability the circuit can be remotely operated from a distance and the operator does not have to be in close proximity to the circuit. Contactors are used to remotely operate banks of lighting and of course the contactor is used for motor control. On contactors that control motors an additional overload block is added to the bottom side of the contactor to protect the motors if they get into an over load condition. The N.C. contacts in the overload block will open and the holding coil of the contactor will de-energize and drop the motor off line.


Can you use an AC contactor in the place of DC contactor?

No, you definitely cannot.