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Join Date: Sep 2013
Posts: 4

MCB & ELCB

09/30/2013 4:03 AM

What is the difference between miniature circuit breaker(MCB) and Earth leakage circuit breaker(ELCB).And what purpose they are clasified.

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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#1

Re: MCB&ELCB

09/30/2013 4:26 AM

Well, a miniature circuit breaker is there to protect against overcurrent, and is sized to fit inside a distribution board. An ELCB is there to protect against earth faults.

One can find both functions built into one device. It is called a Residual Current Breaker Overload {RCBO} and an internet search is the best next step.

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#2

Re: MCB&ELCB

09/30/2013 9:35 AM

These devices cannot be used to measure the air gap in between a stator and rotor in a turbo-generator, nor measure the armature winding temperature of a motor.

I see a practical course in electronics in your future, if you want to be successful.

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#5
In reply to #2

Re: MCB&ELCB

10/01/2013 4:35 AM

Would you use that in a Retro Rotor Encabulator Lyn?

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#3

Re: MCB&ELCB

09/30/2013 10:45 AM

MCB is for protection of installation & equipment against over currents & short circuits

ELCB is for protection of human & animal life against the harmful effects of electric current

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Join Date: Jan 2011
Location: Rotorua, New Zealand
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#4

Re: MCB & ELCB

10/01/2013 12:11 AM

When I see a question like this, I have to look at the comments knowing that Lyn will provide a funny. Keep up the good work

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Allan Evans
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#6

Re: MCB & ELCB

10/19/2013 2:00 AM

Basic question for a potentially life and property endangering application.

I don't want to put you down mate, but, why do you need to know?

This is a totally searchable question if the answer you seek is just for the sake of curiosity or study.

Manufacturers of these devices provide excellent free tutorials and tech memos that explain their proper application and mode of operation and vary from very basic to very detailed. You choose.

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Allan Evans (1); electricalexpert65 (1); lyn (1); PWSlack (1); Wal (1); Yusef1 (1)

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