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Insight - How MCB works

Written By: 

Arpit Jain
 
The switching or the tripping mechanism can be closely observed in the following images. This mechanism is used to automatically cut off the supply of the current when the current exceeds the permissible limits thereby preventing any damage to the appliances.
 
Switching of MCB
 
Let us understand this system in further detail. The image below shows a closure look of the different parts of the tripping mechanism. The moving part of the solenoid is called the plunger. It is like a solid semi cylinder connected to a hammer at one end. The moveable contact is positioned slightly above the plunger and moves axially along the plunger. It does not touch the plunger.
 

Plunger in MCB

 

Comments

So Simply explained..was feeling the urge to know about the MCB mechanism .

does the frequency matters for a MCB? 

 

VERY NICE

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