A
contactor is a component that is needed to switch an electrical circuit on or
off. It is said to be a part of the relay family, but the main difference is
that they are used for applications or in circuits that need more current. To
lighting circuits or electrical motors outside ac unit contactor are generally used to supply power.
Within
an electrical system or circuit, contactors include multiple contacts which are
used to control other components and send signals. The contacts are usually
normally opened but can be normally closed also. Typically, when the contactor
coil has been energized, the contacts are used to supply the power to the load.
The
presence of a high current load is the most common application for contactors.
An example of this is the power supply to an electrical motor. When they are
interrupted an electrical motor produces arcs. We minimize the number of arcs
and control them to be safe by using a contactor.
Carrier ac contactor is designed so that they can get easily
mounted and small so they can be fitted into control panels and circuits. In a
range of different amp (A) ratings and voltage (V) ratings, they are available.
Major Components of a
Contactor
Contactors
are not just one component; they are prepared from a series of components.
Three main components are needed by contactors. Below you can have a look at
them:
Enclosure Or Body
A
form of insulation and protection is provided by the enclosure of a contactor.
This makes sure that with the contacts or coil the personnel will not come into
contact. Generally, from a plastic such as a polycarbonate, the enclosure is
prepared.
Contacts
The
contacts are the part of the contractor and it carries the current. Several
various contacts can feature inside/on a contactor, contact springs, aux or
auxiliary contacts, and power contacts. Usually, the contact configuration of a
contactor is open (NO) but can also be normally closed (NC).
Coil
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