Some Types of Circuit Breakers

In this photo, you can see some different types of circuit breakers.

ELCB :  Earth Leakage Circuit Breaker
RCCB:  Residual Current Circuit Breaker
MCB  :  Miniture Circuit Breaker
MCCB: Molded Case Circuit Breaker
ACB   : Air Circuit Breaker
VCB.  : Vacuum Circuit Breaker

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Common Accessories of Electrical Panel's Dressing

This is a simple photo that shows the most common items to be used during the electrical panel's installation & dressing

Note:
Insulation tape can be used as a replacement for the heat shrink, but it's highly recommended to use the heat shrink that has many advantages above the insulation tape.

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Low Voltage Circuit Breakers

The low-voltage circuit breakers can be categorized into 3 types:

Air Circuit Breaker - ACB

Molded Case Circuit Breaker - MCCB

Miniature Circuit Breaker - MCB

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⚡ Miniature Circuit Breaker in Electrical Panels ⚡

🎯 MCB abbreviates the Miniature Circuit Breaker.

🏗️ It is a small device that is installed in the electrical panel or distribution board of a building or a home.

✅ It is responsible for detecting and interrupting the flow of electricity when it exceeds a certain level, thereby preventing any damage to the circuit or devices.

👍 This photo includes a summary of its specifications.

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Circuit Breaker Types in Low Voltage Systems

We have three different types of circuit breakers as follows:

1- Miniature Circuit Breaker or MCB:
Usually, we find it in the final electrical distribution boards; it can be one pole, two poles, three poles, or four poles.

Also, we can use it as a protection circuit breaker in the control panels.


2- Molded Case Circuit Breakers or MCB:
Usually, it will be as the main breaker in the sub-main panels or the breaker of the branch circuits in the main panels.
It has a higher short circuit capacity than MCB.


3- Air Circuit Breaker or ACB:
Usually, it will be the main breaker in the main panels or MDB.
It has higher short-circuit capacity than MCB & MCCB


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Shunt Trip Coil

A shunt trip coil is an optional accessory in a circuit breaker that mechanically trips the breaker when power is applied to the shunt trip terminals.

The power for the shunt trip does not come from within the breaker, so it must be supplied from an external source.

Its most common application is when we need to control switching off the power of a panel by a feedback signal from the BMS system.


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