3 phase motor contactor wiring diagram:

This Diagram shows 3 phase motor contactor wiring diagram. In this circuit, we use a three-phase motor, a magnetic contactor, and two switches. This circuit diagram is very simple and easy to make. If you want to know more details about this circuit please check our youtube video below the post. Please stay with our website for more updates about electrical electronics and robotics projects gadgets and circuits.


Diagram of 3 phase motor contactor wiring diagram:

3 phase motor contactor wiring diagram

Components needed For this Project:

You can get the components from any of the sites below:

  1. 3 Phase Motor (5 HP) [See Buy Click Amazon]
  2. Magnetic Contactor 40A [See Buy Click Amazon]
  3. Push Button NC Switch [See Buy Click Amazon]
  4. Push Button NO Switch [See Buy Click Amazon]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

Read Also:


Components used to make the 3 phase motor contactor wiring diagram:

01. 3-Phase Motor:

A 3-phase electric motor uses a 3-phase Power Supply to Convert Electric Energy into Mechanical Energy. It contains four Wires (Three hot Wires and one Neutral Wire) and Uses 3 Alternating Currents of the Same Frequency. Since it Generates a Rotating Magnetic Field, it does not need a Capacitor for the Startup. Some 3-phase Motors are Reversible, Which Means they can serve as Generators by Turning Mechanical Energy into Electrical Energy.

02. Magnetic Contactor:

A magnetic contactor is an electromagnetic switching device. It is generally used for controlling 3-phase Motors. The operation of a magnetic contactor is similar to that of a Relay. but a relay is used for low-power or low-voltage connections, and a magnetic contactor is used for high-power or high-voltage connections. As soon as the supply is applied to the magnetic contactor coil. its normally open contacts are closed and normally closed contacts are opened and the associated devices are also operated. This is how a magnetic contactor works.

03. NC Switch:

An NC (Normally Closed) Push Button is a Push Button That, In Its Default State, Makes Electrical Contact With The Circuit. An NC (Normally Closed) Push Button is a Push Button that, in its Default State, Makes electrical Contact With the Circuit. When The Button Is Pressed Down, The Switch no Longer Makes Electrical Contact And The Circuit is Now Open. When The Button is Not Pressed, Electricity Can Flow, But When it is Pressed The Circuit is Broken. This type Of Switch is Also known As a Normally Closed (NC) Switch.

04. NO Switch:

NO (Normally Open) Terms Refer to a Type of Dry Contact or Wet Contact. A Push to Make Switch Allows Electricity to flow Between its 2 contacts when held in. When the button is released, the Circuit is broken. This type of Switch is also known as A Normally Open (NO) Switching system. As its name implies, a Normally Open (NO) Switch Contact or “a Contact” is a Switch. Put very simply, a Normally Open Sensor will have no Current When in a Normal State But When it Enters an Alarm State it will have +5V applied to the Circuit.

Thank You for visiting the website. Keep visiting for more Updates.

Frequently asked questions

What is the AC1 and AC3 rating of the contractor?

The AC-3 rating is always lower than the AC-1 rating and if the application is not known this rating would always be used. The 2 type of rating is AC-1, which is always higher than the AC-3 rating and is used for resistive loads. This is less common as these are most often related to the heating of the applications.

What is an AC3-type contactor?

AC-3 - This category applies to squirrel cage motors with breaks during normal running of the motor. On closing, the contactor makes the inrush current flow, which is about 5 to 7 times the rated full load current of the motor. On opening, the contactor breaks the rated full load current flow of the motor.

What does AC3 stand for?

Science and technology. Dolby AC-3, Dolby Digital audio codec. AC-3 algorithm (Arc Consistency Algorithm 3), is one of a series of algorithms used for the solution of constraint satisfaction problems.

Who is the father of AC3?

In the game's prologue, consisting of the three main sequences, players of control Connor's father Haytham Kenway, the leader of the Colonial Templars, while in the modern-day sequences, the player character is series protagonist Desmond Miles, who searches for a way to protect the Earth from an upcoming of the solar flare.

What is the difference between e AC3 and AC3?

Whereas Dolby Digital (AC-3) supports up to 5-full-bandwidth audio channels at a maxi-bitrate of 640 kbit/s, E-AC-three supports up to 15 full-bandwidth audio channels at a maxi- bitrate of 6.144 Mbit/s.

Read more Single Phase Wiring


Submit a Comment

Your email address will not be published. Required fields are marked *