Split AC Outdoor Contactor Wiring Diagram

This post is about the split ac outdoor contactor wiring diagram, in today post you will learn how to do the connection of split units for indoor to outdoor wiring diagram. In the split unit indoor to outdoor wiring diagram, all wiring connections are shown.


 Indoor to Outdoor Complete Wiring


In the below-split unit indoor to outdoor wiring diagram, all connections are shown like a stepper motor, blower fan motor with the running capacitor, display, pipe temperature sensor, room-temperature sensor, 220 to 12-volt transformer, compressor with the capacitor, outdoor fan motor with the capacitor, magnetic contactor with complete wiring connection.

split ac outdoor contactor wiring diagram

 In the above split unit contactor wiring diagram, all wiring connections are shown, the magnetic contactor is used as an on/off switch for the compressor. The PCB circuit relay controls the compressor magnetic contactor and the magnetic contactor will control the compressor.

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3 Phase Voltmeter Connection Diagram

In this post, you will learn about 3 phase voltmeter connection diagram, in the last post you will learn about the voltmeter connection for single-phase and DC supply. As you know in our main panelboard, we install voltmeter to measure the voltage in a circuit. In the three-phase, we need two voltmeters to measure the voltage. or we need a voltmeter selector switch to measure the voltage of 3 phase system, however, can also measure the voltage between the line to line and line to neutral.

3 Phase Voltmeter Connection Diagram Line To Line


In the 3 phase voltmeter connection diagram, I have shown two voltmeters for 3 phase, the first voltmeter measure the voltage between Line 1 to Line 2 and second voltmeter measure the voltage between Line 2 to Line 3.


3 phase voltmeter connection diagram


In the above 3 phase voltmeter diagram, the L1 and L2 is connected to voltmeter 1, L2 and L3 are connected to voltmeter two. So the first voltmeter will show voltage between Line 1 and Line 2. The voltmeter two will show voltage between Line 2 and Line 3. 


Note that the wiring of a digital voltmeter for 3 phase is different, to wire digital voltmeter you will also provide the neutral wire. The neutral and line wire for circuit and two lines. However, it's will different and you need to read the diagram and ratting voltage. Soon I will write about the 3 phase digital voltmeter wiring diagram.

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Voltmeter Connection Diagram For AC/DC

 This post is about the voltmeter connection diagram, in this post you will learn about wiring connection of A DC voltmeter and AC voltmeter. As you know the pressure which makes the flow of current is called voltage, the unit of voltage is volt and it's denoted by "V" in circuits. For measuring the current pressure, we used voltmeter. The voltmeter is available in two types in which are analog and digital. The wiring of a voltmeter for DC and single-phase is same. In a DC voltmeter, we have two connection points for negative and positive. For AC single phase voltmeter we have also two terminals for supply. Where we connect the neutral and line wire.

Voltmeter Connection Diagram For DC (Direct Current) and AC (Alternating Current)

 

How the voltmeter is connected?


The voltmeter is measuring device which is always connected in parallel connection is the circuit. If you to install with single phase, you need to provide the single-phase supply to the voltmeter. While the ammeter is connected in series connection in the circuit.
 

What is voltmeter with diagram?


A voltmeter is an instrument which measures the voltage between two points in an electric circuit. In the below voltmeter connection diagram, I have shown voltmeter diagram for AC single phase and for DC which show the battery voltage.

voltmeter connection diagram


What is the symbol of Voltmeter?


As you know volt is unit of pressure and it's denoted by "V" in the circuit. The symbol of the voltmeter is a circle inside the letter "V". While ammeter symbol represented with circle inside letter "A".

I hope this post helps you very much, now if you have any question regarding this post you can ask in below comments section. And if you want to learn about voltmeter selector switch wiring diagram then click here.

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Generator Transfer Switch Diagram

In this post, you will learn how to wire a generator transfer switch diagram for 3 phase 4 wire system, as you know there are different types of changeover switch/transfer switch for single phase, 3 phase and 3 phase 4 wire system. Some are automatic transfer switches and some are manual. In this, you will learn how to wire a manual generator transfer switch for three-phase four wire system.

Generator transfer switch diagram for 3 phase 4 wire system


As you know in the single phase we have two wire supply (neutral and Line), in the 3 phase we have 3 line wires. And in 3 phase 4 wire system, we have 3 line wire and one neutral wire. In the below diagram I have shown 3 phase 4 wire system changeover or transfer switch.

 

generator transfer switch diagram

n the above transfer switch diagram, all connection are shown, however, this is an example of wiring a transfer switch. The shape of the transfer switch can be changed, So first read the diagram and then do the connection.

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4 Way Switch Wiring Diagram

 In this post, you will learn about the 4 way switch wiring diagram, in the last post I wrote about the 4-way switch working and how to use a 4-way switch. We also discuss the difference between 4 way and a 3-way switch. As you know that 3-way switch is used for controlling light bulbs from 2 places as in the staircase wiring connection. And when we want to control a light bulb from more than two places, then this work can be done using a 4-way switch. 


4 Way Switch Wiring Diagram 


In the below 4 way light switch diagram, I have shown a light bulb control from 3 switches, in the below wiring connection diagram, I have used two "3-way switches" and one "4-way switch". As you know if want to control a light from more than two places then we can do this with a 4-way switch. 

4 way switch wiring diagram

In the above 4-way switch wiring connection diagram, I have shown the complete wiring connection of 3 way and 4-way switch. In the above connection, the neutral wire is connected directly to the light bulb holder/socket and the line wire throws the switches.


What if a 4-way switch is not available 

The 4-way switch is 4 terminals, and mostly available in markets, but in most cases, one-way and 3-way switches are mostly used, so it's possible that 4 way switch not available in your nearest market. However, you can purchase it online. 

The 4-way switch is the combination of two 3-way switches, and a 3-way switch is a single pole double throw. So it means that you can make the 4-way switch from double pole double throw switch. And the connection of a double pole double throw switch is too simple. Soon I will write about the working of double pole double throw switch. 

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4 Way Switch Diagram - How 4 Way Switch works?

 4 way switch diagram, in this post you will learn about 4 way switch and working of 4-way switch. As you know there are different types of switches, which we use for different purposes and control. In our house wiring, we use mostly two types of switches, In which one is a single pole single throw switch (one-way switch) and a single pole double throw (2 way or 3-way switch). However, this post is about the 4-way switch wiring connection diagram.


4 Way Switch Diagram


How does a 4-way switch work?

Four-way switch is the combination of two 3 way switches, which we used for controlling lights from three or 4 places. The 4-way switch has 4 terminals when switch on up position the current flow form two terminals, and when switch on down position the current flow from the same terminal but this time has a cross-connection.

 


What is the difference between a 3-way switch and a 4-way switch?

 A 3-way switch has 3 terminals (single pole double throw) and a 4-way switch have 4 terminals. A 3 way switch is used for switching a light from two places, such as in staircase connection. But using a 4 way switch you can switch a light bulb from more than two places. 

 

How do you wire a 4-way switch diagram?

 In the below 4-way switch wiring diagram, I have shown the complete working and connection of 4 way switch. In the below diagram I have shown, how 4 way switch works. 

4 way switch diagram
 

In the above 4 way switch wiring diagram, the up position and down position internal connection shown. 

 

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Wiring Multiple Lights To One Switch Diagram

 Wiring multiple lights to one switch diagram, to wire multiple lights to one switch. Or to control multiple lights bulbs from one switch is a too simple and easy connection.  In this type of connection, we provide neutral wire to all light bulbs, and the Line wire is controlled from the one-way switch. And line wire connected to the switch and when switching ON, the line wire supply is starting to all light bulbs. And all bulbs will glow up.


Wiring multiple light bulbs to one switch diagram


In the below multiple lights wiring diagram, I have shown 3 light bulbs which can switch ON/OFF by only one switch. the neutral wire connected to all 3 lights direct and Line wire from the switch.


wiring multiple lights to one switch diagram

If you want to wire more lights with one switch, you can follow the same method which has shown in the above multiple lights to one switch diagram.


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kWh Meter 3 Phase Wiring Diagram

 kWh meter 3 phase wiring diagram, in my last post I write about the single-phase kWh energy meter wiring diagram. In this post, you will learn how to wire a three-phase energy meter with the main 4 pole MCB circuit breaker. The 3 phase energy meter has worked with 3 phase 4 wires system, which means that we also wire neutral wire with an energy meter.


kWh Meter 3 Phase Wiring Diagram or How to wire 3 phase kWh Energy meter


In the three-phase kWh energy meter, we have 8 terminals, in which 4 for incoming power supply (3 phase 4 wire system) and 4 for outgoing supply to the load. In the below kWh meter 3 phase wiring diagram, all the connections are shown. However, it's can be different according to different models and shapes. So before installing a 3 phase kWh energy meter, first look at the company diagram. may it's different so follow the company diagram. However, most of the energy meter wiring connections are the same as the below diagram.


kwh meter 3 phase wiring diagram

In the above diagram, a 4 pole MCB circuit breaker is also wired. However, you can also use the MCCB circuit breaker according to your load.

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