Float Switch Connection diagram | Float switch wiring

Float Switch Connection diagram | Float switch wiring

Float Switch Connection diagram:

This diagram shows how to connect a Float Switch Connection diagram. In this circuit diagram, we use 2 magnetic contactors, 2 single phase motors, a DP MCB ( Double Pole Miniature Circuit Breaker ), and a float switch. First, we input power to DP MCB and then from DP MCB to magnetic contactors. After this connection we make a connection with the float switch and single-phase motors. If you want to see this diagram connection animation please check our youtube video below the post.

Diagram of Float Switch Connection wiring:

Components Need for this Project:

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

  1. Single Phase Motor [See Buy Click Amazon]
  2. Magnetic Contactor [See Buy Click Amazon]
  3. Float Switch [See Buy Click Amazon]
  4. DP MCB [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 Connection:

01. Single Phase Motor

Single Phase Motor
Fig 2: Single Phase Motor
Single-Phase Induction Motor is Very Simple in Construction, Economical, Reliable, and Easy to Repair And Maintain. Due to all these advantages, it is widely used in vacuum cleaners, fans, centrifugal pumps, blowers, washing machines, etc. It can run only by supplying 1 phase current through this motor. The main two parts of this motor are Rotor and Stator. Among them, the rotating part is the Rotor and the stationary part is the Stator. Like all induction motors, a single-phase induction motor consists of two main parts, the stator, and the rotor.

02. Magnetic Contactor

Magnetic Contactor
Fig 3: Magnetic 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. Float Switch

Float Switch
Fig 4: Float Switch
Float switch The water tank can basically be controlled with this switch. It basically works like a switch. This float switch has a magnetic reed sensor. Float Switch It is a water level controller. With this, you can create interesting projects. The Float Switch is Behind the Panel at The Bottom of the Dishwasher door, directly under the float. With this float switch, you can control the water tank motor/pump motor of your house in which water is raised in the tank.

04. DP MCB

Fig 5: 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.

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Frequently Asked Questions

Why use a float switch?

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

What is the working principle of a float switch?

A sump pump float of the switch detects a rise in water in a sump pump. Commonly installed in the normally closed position, the electrical circuit diagram will close as the water rises. This allows the current flow to pass to signal a pump to pump water out of the tank.

What is the structure of a float switch?

A float switch is a type of level of the sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, as an alarm, and to control other devices. One type of float switch uses a mercury switch inside a hinged float.

Do float switches need power?

Also known as the liquid level of the sensors, these products contain a hermetically sealed reed switch within a stem. An external float, with a magnet inside, passes over or activates the reed switch as the liquid level moves up and down. This is shown in the below diagram. No power supply is required to operate the switches.

Why do float switches fail?

Overuse/Old Age – Sometimes, after so many up and down cycles, the float switch just gives out and stops responding to the rise and fall of the water in the pit. Often it stops working when the pump is running. When this happens, the pump is left off the switched on so that it runs continuously until it burns itself out.

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