This is an introduction to the selection of MCB types and how a knowledge of inrush currents at start up can influence the choice of device.
We look at thermal sensing of overload currents and electro-magnetic responses to short circuit and fault currents.
Should a type B or type C be installed, and what are the implications on safety and circuit performance.
And we also look at the different kinds of devices, single pole, three pole, four pole etc.
This video is a good overview of the subject.
You may also want to follow the link and view our video entitled - Zs too high What to do – on the following link
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This video is No.71 on our YouTube channel where we have videos on a wide range of electrical topics.
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Always work safely, electricity can be dangerous. If you are unsure, stop and seek advice.
