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What is the basic principle of circuit breaker?..
I read that it works on electro-mechanical principle...
Does it require both electric n magnetic conversion to act?
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Answer Posted / jairaj shetty
a circuit breaker , in its simplest form is a thermo
electric device . when the rated current is exceeded , the
thermal device , made up of bimetallic strip heats up and
bends , thus tripping the mechanically spring loaded
switch .
the other form of electro magnetic circuit works by
activating a magnetic relay instead of a bi metallic trip
device .
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