The purpose of using MCB or fuse is the same but the working principals of both the devices are different. MCB stands for Miniature circuit breaker and both fuse and MCB are used to protect electric equipment and you from a short circuit or any kind of electrical fault.
MCB and fuse disrupt the flow of the current whenever there is unexpected high voltage of electricity passing through electric device and also interrupt the flow when the temperature of the electric device gets high which can cause a short circuit or any miss happening.
The MCB detects the excess current flow and immediately breaks the circuit. This can be seen as tripping action of the MCB knob. Previously, this job was done by a fuse. These days MCB is more commonly used in low voltage electrical network than fuse.
Advantages of MCB over fuse:-
- MCB’s are more sensitive to current as compared to fuse, they can sense even a very slight fluctuation in voltage and take action very fast by tripping the gear down.
- If you are using MCB, you can easily find the faulty electrical appliance but this is not possible if you are using fuse.
- You can easily reset the MCB back to its ON position but you can’t reset the fuse as it can be only replaced with another fuse.
- MCB provides you more protection during handling it and it can be little dangerous to handle fuse with bare hands.
- MCB is re-usable with low maintenance cost but you can’t re-use the fuse as once it gets faulty, the only option you left with is to replace it with another new fuse.
I hope this blog helped you to choose the best option in between fuse or MCB. Now it’s totally up to you what would be your preferred device to protect you and your electric appliance. You can easily choose and buy from Bestofelectricals.com whether it is fuse or MCB.
