Float switch contactor wiring:

This diagram shows the Float switch contactor wiring. In this circuit, We use a DP MCB ( Double Pole Minature Circuit Breaker ), a magnetic contactor, a motor protector, a float switch, and a single-phase motor. First, we need to connect the DP MCB ( Double Pole Minature Circuit Breaker ), then connect the contactor with DP MCB, then connect the motor protector, then connect the float switch and motor.


Diagram of Float switch contactor wiring:

Float switch contactor wiring

Components needed For this Project:

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

  1. DP MCB 20A [See Buy Click Amazon]
  2. Magnetic Contactor 40A [See Buy Click Amazon]
  3. MPCB Switch [See Buy Click Amazon]
  4. Single Phase Motor (1 HP) [See Buy Click Amazon]
  5. Float Switch Water Level Controller [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 Float switch contactor wiring:

01. DP MCB:

DP MCB In 2 Pole MCB, switching & protection is affected in phases and the neutral. A Double Pole or DP Switch is a Switch that Controls 2 Circuits at the same time. In terms of Residential Switching, this Normally means it Switches the live and Neutral at the same time. In Layperson Terms, Double Pole switches or DP Switches are Exclusively Designed to Control 2 Different Electrical Circuits at the same time, which allows the Appliances to Isolate safely and reliably. Fan or light Combinations and Medical Equipment are some of the many applications for DP Electrical Switches and Electrical components.

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. Motor Protector:

MPCB = Motor Protection Circuit Breakers. A protection system against electrical faults, such as short circuits for AC Line 220V. line-to-ground faults, and line-to-line faults. Electrical faults that are below the MPCB is breaking capacity can be interrupted by the board.MCBs are designed for a wide variety of functions circuit protection functions while MPCBs are used for the specific function of protecting circuits driving electric motors.

04. Single Phase Motor:

A Single-Phase Motor is an Electrically-Powered Rotary Machine That Can Turn Electric Energy into Mechanical Energy. It Works by Using a Single-Phase Power Supply. Single-phase Motors Are Used in Equipment And Machines That Are Smaller in Size And Require Lower Horsepower. This Includes Equipment Such As Refrigerators, Pumps, Compressors, Fans, and Portable Drills. Single-phase motors Have a Similar Construction to The 3-phase Motor, Including an AC Winding That is Placed on The Stator And Short-Circuited Conductors That are Placed in a Cylindrical Rotor.

05. Float Switch:

A Float Switch is a type of Level Sensor Device Used to Detect the level of liquid within a tank. The Switch May be Used to Control a Pump, as an Alarm, as an Indicator, or to Control Other Devices. 1 type of Float Switch Uses a Mercury Switch Inside a Hinged float. Another common type is a Float Switch That Raises a rod to Actuate a Microswitch. One Pattern Uses a reed Switch Mounted in a Tube Float, Containing a Magnet, Surrounding the Tube, and Guided by it.

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Frequently asked questions

Why use a float switch?

The Float switches are used to detect the level of a liquid in a tank. The switch floats on top of the surface and acts as a mechanical switch, going up and down depending on the liquid level. They are often used to control pump devices, valves, and alarms in various residential or industrial applications.

What are the components of a float switch?

Float switches consist of a connection head, an immersion tube with 1 to 4 magnetic sensor elements, and an afloat. Versions with straight or elbow immersion tubes are available.

Why are floats used?

Integers and floats are 2 different kinds of numerical data. The integer (more commonly called an int) is a number without a decimal point. A float is a floating-point number, which means it is a number that has a decimal place. Floats are used but more precision is needed.

What activates a float switch?

As the float rises or falls with the liquid level, the magnet moves closer to further away from the reed switch, causing it to open and close. In both cases, the changing of the liquid level is translated to an electrical on-off signal by the movement of the magnet.

What is an AC float switch?

An HVAC wet switch/float switch, also known as a condensate of the overflow switch, serves to prevent this pan from overflowing if the AC of the drain stops working properly. The switch is activated so that the level of the water in the pan comes above a certain point, causing the switch mechanism to trip/float to rise.

Read more Single Phase Wiring


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