Contactor Tutorial

Both match a contactor with the job it has to do but they do so in different ways.

Contactor tutorial. When the contactor is in an open state that means that the left side of the contactor is electrically disconnected from the right side. This tutorial will explain what a contactor is and how it works. In each of these contactor symbols you can also see that there s a coil drawn at the bottom. The nema selection process always results in a choice of a contactor you can use over a broad range of operating conditions.

They usually handle very heavy loads like an electric motor lighting and heating equipments and so on. Although they have been explained in earlier posts their wide use and significance needs to be explained in detail. The manual contactor was a big improvement over the knife blade switch. It is used for switching an electrical circuit on and off.

Manual motor controller enclosed manual motor controller figure 4. Contactors are used to provide this isolation. And this is the control mechanism for the contactor. Contactors use 120 volt standard power to energize a magnetic coil which causes a set of internal contacts to close and provide higher power to the equipment.

These voltages must be electrically isolated from the standard 120 volts ac. When selecting contactors you ll use one of two common standards. It requires a small amount of control circuit to turn on and off the load. Basically a contactor is an electrical switching device.

A contactor is a relay that is used for switching power. Tutorial wiring contactor with push button start stop taken by xperia z1 compact. Cgm mini contactors for use with overloads or manual motor starters up to 20 amps or 7 5hp cc midi contactors for use with overloads or manual motor starters up to 160 amps 75hp cc power contactors for use with overloads up to 900 amps or 600hp. A contactor is also a type of relay.

Variations of manual contactors are still in use today. Therefore the operation of this contactor is safe compared to manual contactor. Use these tips to learn how to wire a contactor. What is a contactor.

To specify our contactor products we have also set up an easy to use product selection guide at. It is a special type of relay but there is a basic difference between the contactor and a relay. This is an electromagnetic type contactor and it can operate automatically.