Wednesday, 18 April 2012

Compare MCB with fuse


Compare MCB and fuse


MCB 

(Miniature Circuit Breakers)

FUSE

1
MCB trips off in case of excessive load.
Fuse melts/fuses in case of excessive load.
2
MCB is to be just put-on after correcting the fault in wiring.
Fuse needs to be replaced with a new one.
3
Since we do not change the MCB, there is no risk of putting on the MCB/switch even if the fault is not correctly repaired.
There is a risk of putting on the switch in case; due to ignorance higher capacity fuse-wire is positioned.
4
Compact, small equipment.
Porcelain base and top. Not attractive.
5
Works on Bi-metal expansion or induced magnetism.
Works on melting/fusing due to high temperature.
6
Relatively costlier than fuse.
Relatively cheaper than MCB.

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