15 April 2021

Advantages and disadvantages of Contactor

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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