MCCB wiring diagram:
This diagram shows how to make an MCCB wiring diagram. In this circuit, we use a 3-phase motor, an MCCB ( Molded Case Circuit Breaker ), a voltage control transformer, a magnetic contactor, a start switch, a stop switch, and an overload relay. First, we need to connect the MCCB with the power source, then connect the magnetic contactor, then connect the transformer, then connect the start switch and stop switch, then connect the overload and motor with the circuit breaker.
Components needed For this Project:
You can get the components from any of the sites below:
- MCCB [See Buy Click Amazon]
- Magnetic Contactor [See Buy Click Amazon]
- Overload Relay [See Buy Click Amazon]
- Transformer [See Buy Click Amazon]
- Start Switch [See Buy Click Amazon]
- Stop Switch [See Buy Click Amazon]
- 3 Phase Motor [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!
Components used to make the MCCB Wiring Diagram:
The MCCB consists of a bimetallic sheet that expands and contracts when the temperature of the MCCB changes. Due to overload, the bimetallic strip will start to bend and eventually, it will trip if more current flows in the circuit than the predetermined current. The trip mechanism opens the breaker. MCCB stands for Molded Case Circuit Breaker. It is another type of electrical protection device that is used when the load current exceeds the limit of a miniature circuit breaker. The MCCB provides Protection against Overload, and Short Circuit Faults and is also used for Switching the Circuits.
02. Magnetic Contactor:
A magnetic contactor is an electromagnetic switching device. It is generally used for controlling three-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.
Overload Protection is Protection Against a Running Overcurrent That Would Cause Overheating of The Protected Equipment. Hence, An Overload is Also a Type of Overcurrent. Overload Protection Typically Operates on an Inverse Time curve where the Tripping Time Becomes less as the Current Increases. This Overload Protector is an Essential Component for Many Sockets. The Top-Quality Overload Protector can Effectively Protect Electrical Products from Power Surges.
04. Transformer:
Using a transformer, electric energy can be moved from one AC circuit to another. A transformer uses the electromagnetic induction principle to either increase or decrease the AC voltage (step-up or step-down). To lower the power in the circuits of low-voltage devices like doorbells, transformers are frequently utilized.
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 two contacts when held in. When the button is released, the Circuit is broken. This type of Switch has also known as A Normally Open (NO) Switch. 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.
06. Stop 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.
A Three-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 Three-Phase Motors are Reversible, Which Means they can serve as Generators by Turning Mechanical Energy into Electrical Energy.
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