<p style="text-align:justify"><span style="font-size:14px">Circuit breakers are on-load switches. The functions of a circuit breaker are:</span></p>

<ul>
	<li style="text-align:justify">
	<p><span style="font-size:14px">To carry full load rated current with minimal millivolt drop across contacts of the breaker.</span></p>
	</li>
	<li style="text-align:justify">
	<p><span style="font-size:14px">To safely interrupt the rated current and the fault current at very low power factor without being damaged.</span></p>
	</li>
</ul>

<p style="text-align:justify"><span style="font-size:14px">This is to introduce a circuit breaker. There are many more functions and details of a circuit breaker, which will be dealt with little later.</span></p>