Selector Switch Wiring Diagram | Voltage Selector Switch Wiring diagram

Selector Switch Wiring Diagram | Voltage Selector Switch Wiring diagram

Selector Switch Wiring:

This diagram shows Selector Switch Wiring Diagram. In this circuit, we use two DP MCBs ( Double Pole Miniature Circuit Breaker ), a magnetic contactor, an overload, and a selector switch. First, we need to connect the DP MCB, connect the selector switch, then connect the magnetic contactor, and then connect the DP MBC 2. Now this circuit is ready for use. If you want to know more about this circuit please check our youtube video below the post.

Diagram of voltage selector switching wiring:

Voltage Selector Switch Wiring
Fig 1: Voltage Selector Switch Wiring

Components Need for this Project:

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

  1. DP MCB [See Buy Click Amazon]
  2. Contactor [See Buy Click Amazon]
  3. Overload [See Buy Click Amazon]
  4. Selector 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!


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Components used to make the selector switching control:

01. DP MCB

Fig 2: DP MCB

Double pole MCB can control two wires. This circuit breaker is generally used in single-phase electric lines. Double pole MCB circuit breaker input has two wires supply two wires and an output. In a single-phase line, A double-pole MCB circuit breaker is used to give good production. This circuit breaker is provided through phase and neutral circuit breaker, it is very safe. This circuit breaker is preferred for home appliances. A DP MCB usually trips for 2 reasons 1. Overload 2. Short circuit.

02. Contactor

Fig 3: Contactor

A magnetic contactor is an electrical device used for load control, automation, and protection. It is much like a magnetic reel. However, relays are generally used for low power and voltage, on the other hand, when we think of high power, these heavy-duty contractors only come to mind. It basically works by switching the load on and off. It has 3 terminals whose inputs are denoted as L1, L2, L3, and outputs as T1, T2, and T3. The circuit of the load is made in automation mode or protection using auxiliary contacts. It has two types of terminals. 1) Normally Open (NO). 2) Normally Closed (NC)

03. Overload

Fig 4: Overload

Overload relays are often used to protect the motor from excessive current flow. Overload relays are used to protect the motor from overheating. Besides some specific faults such as phase to phase, phase to ground, etc. overload relay provides protection to the motor. A thermal overload relay works on the principle of bimetallic strip electro-thermal characteristics. When the bimetallic heats up, the trip function in the overload relay turns on and disconnects the power supply to the contactor coil, thus tripping the overload relay and breaking the motor current and saving the motor.

04. Selector Switch

Selector Switch
Fig 5: Selector Switch

Selector Switches Can be Rotated left, Right, or in The Center in Order to Open or Close The Electrical Contacts. The Function of a Selector Switch is To Control Devices as well as Switch Between a Minimum of Two or More Circuits. The perfect Use For a Selector Switch is When Used for Controlling an Output of a Device. Selector Switches Come as a Complete Unit Often listed as a Terminal Block Meaning the Selector Switch is a Complete Block Which Makes it Simple And easy to Install.

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Frequently Asked Questions

What is an electrical selector switch?

A Selector Switch is a device used to start or stop current flowing along a circuit or multiple circuits diagram. Devices in this family have an actuator or Knob that turns back and forth along a center axis point but have a predetermined number of stopping positions (2 to 7).

How does a 3-position selector switch work?

Each 3-position selector switch uses two output pins. The clockwise operation sets the lower assigned output to High. Middle position - output pins Low. Anti-clockwise sets higher assigned output High.

What is the use of a selector switch?

An electronic rotary switch was often used in controlling a mechanic of the electronic equipment or device. The main function of electronic selector switches is to make, break, or change the circuit diagram connections.

How do you test a selector switch?

Push the button on the switch terminals that you are testing. Touch an ohmmeter probe to each terminal. The ohmmeter reading should change from infinity to zero ohms. Keep each probe in contact with its terminal and press a different button, releasing the first button.

What is a three-phase voltage selector?

The intelligent phase selector is a system that is capable of comparing 3 phases and switching automatically to any of the 3 phases. The system consists of three main parts namely; the transformer, comparators (which are the brain of the system), and electrical switching device (relay).

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