Guide Helpful Youtube Videos on Electronics.

[6pack]

How MCB's work. Teardown and explanation and all about mcb curve rating.

 

[Heisen]

Normal people in India often confuses MCB with RCCB. What they actually want to point to is RCCB but they call it MCB.

When your whole house power goes out but all the neighbors have power, sharma ji goes "MCB gir gya hoga".

 

[6pack]

Real vs junk surge protector tear down
Real one:

Junk one:

Buy only branded ones.