MCB Full Form | What is MCB used for? | Applications of MCB

MCB Full Form? 

MCB full formMiniature Circuit Breaker. A Miniature Circuit Breaker (MCB) is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuits. MCBs can automatically switch off the electrical supply to prevent damage to the circuit, and they can be reset manually once the fault has been cleared. MCBs are widely used in homes, offices, and other low-voltage electrical installations as a cost-effective and convenient way to provide protection against over-currents and short circuits.

MCB full form in Electrical 

MCB Full Form is the Miniature Circuit Breaker. It’s a type of electronic switch that operates automatically. It can detect a problem within a circuit by identifying the excessive current flow in the circles. If there is a lot of power in the loop, it can break the loop at any time. Fuse boxes are frequently used in place of MCBs. However, MCBs are a better choice because they must be reset by users before they will work again. It is intended to protect against overheating-related faults.

What is MCB?

MCB Full Form


What exactly is MCB? MCB is an abbreviation for Miniature Circuit Breaker. During any abnormal condition in the electrical network, such as an overload or short circuit, it automatically switches off the electrical circuit. However, a fuse may detect these conditions, but it must be replaced even if the MCB can be reset.

Applications of MCB

  • MCB is used in new construction homes.
  • MCB is designed to protect the house from circuit overload.
  • MCB is required in homes, offices, and shop distribution boards for the protection of individuals’ circuits and complete wiring systems in that building through the main circuit.
  • They are being used extensively these days and are virtually replacing traditional rewireable fuses.
  • MCB can be used with a ground fault or arc-fault mechanism because the breakers consist of the system that opens the contacts if a line-to-ground fault occurs.
  • MCB is slightly more expensive than fuses but this is offset by the fact no cost is involved. I rest them after the operation and it is a very quick and simple process.

32 Amp MCB price

32 Amp – Ring Final. The technical term for your power circuit or sockets. A two-bedroom house for example may have 2 x 32A power circuits to separate upstairs and downstairs sockets. Larger dwellings can have any number of 32 A circuits

  •  32A Single Pole C Curve MCB price – ₹275
  • 32A Double Pole C Curve MCB price – ₹613

  • 32A Three Pole C Curve MCB price – ₹660

16 Amp MCB price

16amp MCBs are generally used on dedicated Freezer Circuits and Immersion heaters circuits in the home

Breaking Capacity: 7.5 kA

  • 16A Single Pole C Curve MCB price -₹279
  • 16A Double Pole C Curve MCB price – ₹499
  • 16A C Curve TPN MCB price – ₹1594

4 Pole MCB

4 pole MCCB for 4 wires connections, the one additional 4th pole for neutral wire connection so that between neutral and any of the other three will supply. In 4-Pole MCCBs the neutral pole is also having protective release as in the phase poles. Application: Three-Phase Supply with Neutral

MCB 63 Amp 4 pole price

63 Amp MCB is designed to provide protection against short circuits and overload circuits. The 63 Amp MCB is meant to trip the circuit automatically if a defect is detected. 63 Amp MCBs from Live can be used in a wide range of applications including commercial and domestic environments.

MCB 63 Amp 4 pole price – ₹1,649

Types of MCBs

MCB stands for Miniature Circuit Breaker, which is a type of electrical switch that automatically disconnects a circuit in case of an overload or short circuit. Some of the types of MCBs are:

  1. Thermal Magnetic MCB: This type of MCB uses both thermal and magnetic elements to trip the breaker in case of an overload or short circuit.
  2. Electronic MCB: This type of MCB uses electronic components to detect and trip the breaker in case of an overload or short circuit.
  3. Magnetic Only MCB: This type of MCB uses only a magnetic element to trip the breaker in case of a short circuit.
  4. Residual Current Circuit Breaker (RCCB): This type of MCB is designed to detect and trip the breaker in case of a residual current (i.e., the difference between the current entering and leaving the circuit).
  5. Circuit Breaker with Overload Protection (CBOP): This type of MCB combines the functions of an MCB and an overload relay in one unit.

These are some of the common types of MCBs. The type of MCB used in a particular application depends on the specific requirements of the electrical system and the load being protected.

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