State any two advantages of MCB over Fuse. State the standard specifications of MCB available in the market.  

1 Answer

Answer :

Following advantages of MCB over Fuse:

1. No need of replacement of fuse wire.

2. Manually restore of supply is simple.

3. Fault understanding by visual inspection

4. More safe than fuse

The standard specifications of MCB available in the market:

1. Single pole

2. Two pole

3. Three pole

4. Four pole

5. For available current rating : 0.5A, 1A, 1.6A,2A,5A, 6A, 10A,16A,20A, 25A, 30A, 32A, 40A, 50A, 60A and 63A

6. 250V and 450 v

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