How to Choose Right MCB Breaker Current Rating l How to Calculate MCB rating with load

Nice explanation and presentation, except for the fake accent.

Thanks for great explanation, Is there any IEC or EN standard telling this multiplication factor ?

Really good explanation. No assumptions, just plain explanatinons. You are an excellent teacher. Thanks for this.

Not talked about ka rating of the Mcb

Please share the relevant documents related to safety factor of 1.5 and 2

Excellent

C- Curve is tripping at 2 times of current. Do you have any video examples how these MCB trips or do you have tested these tripping's at your end. This seems like a theory that D-curve will trip 10-15 times of current. My question is that did you ever observed this in your testing's.

👍 damn good explanation

A valuable refreshing & knowledge

So nice thanks sir

Sir I think as per IS, max wattage that can be connected to a lighting circuit is limited to 800W. So we need only 6A MCB.. Here no calculation required..

withstanding current 10,000 ampere. beyond this rating the breaker will melt.

Your video excellent. One suggestion. In your example, kindly put only one Refrigerator., instead of 2. In 99.999% of Indian homes, we will have only one Refrigerator.

10KA is the interrupt capacity, not phase called line in USA.

thanks sir for the perfect answer......
you helped me to not to watch other videos by clarifying my all questions.!

By this calculation, my 2000w geyser should be needing more than 10amps MCB. But in my home, i have C6 amps mcb which is working fine. last i used 2000w geyser and 1400w heater at the same time, then only it tripped after 3 4 minutes. due to some problem in my area i am only getting 170 180 v mains which should theoretically increase the amps. But still every thing is working fine on 6amps. can you explain why?

Good explanation ! Although you mention that B-curve (meaning RCB type B) is used for lighting, i see in all home installations only C-curve MCBs are used. Why is it so ?

You are an amazing teacher ...you debunked for me an important instruction ✌️✌️✌️ thanks a lot professor !!

Wow excellent explanation well done I have subscribed job well done I never learned that at college

Very good explanation, but I have a doubt i.e. what is Cos φ (cos phi), how to determine it ? Pls answer. Thanks 👍🏻