Contactors are electrically controlled switching device which is used for switching electrically. The basic operation of this is similar to a relay but the only difference is the contractors can carry a large current to relay up to 12500A. They cannot provide short circuit or overload protection but can break the contact when the coil excited.
Advantages of contactor:
- It is a fast switching operation
- It is simple in construction
- It provides protection
- Lower power consumption
High load capacity - It is suitable for both AC and DC devices.
- Fast switching
Disadvantages of Contactor:
- In the absence of a magnetic field, the coil may burn
- Aging of components causes corrosion of materials when exposed to moister
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