Sir I have ha MCCB (Main breaker in MDB) rated as below: MCCB NSx400S 400AT 3P 415V AC schneider now my system voltage level is 127V/220V.Can i use the above MCCB. THANKS
It is for utilization A breakers and lv switchgears. Usually it is the maximum short circuit withstand current rated up to a certain time. Usually 1 second or 3 seconds. Examples are 85kA 1 seconds, or 50kA 3seconds. Mucha gracias pal.
Every phase is rated at 400amps my friend. Overcurrent at any phase will trigger a trip. Using an trip unit you will be able to better check which is the errant phase.
Hello, there are different trip unit available. Some are thermal magnetic and not electronic. So the answer is no. So depending on your site requirement you may choose different trip units. -Weet
Depending on the model, you might be able to off the protection with electronic trip units. In your case i would suggest using a switch disconnector. Much cheaper and always at the status u left it. However there will not be any protection
Great video. Why is this information so hard to find? It seems like basic stuff that everyone should know who is setting foot in a utility room.
Brilliant explanation on how to use the MCCB'S adjustable settings.
Your explanation is very clear and fundamental thank's for your explanation.
Best video about mccb s I've ever seen yet 🎉
🎉
Very good informative video
Very very deep explanation 😉😉😉
The best video.
thanks for your explanation, that's help me to clarify the problem in my head..
Thank you! I will be back with more videos soon!
Very informative thanks 4 the content
Hi ruben, thanks for your kind words
very good video for mccb! good job. keep doing high quaity video related electric and controls.
Thank you! I will be back with more videos soon!
Thanks so much for educating me in this video, but I will like to learn more about electricity can you help me am new to so many things?
Tremendous Job, well done
Thank you! I will be back with more videos soon!
Please upload more videos related to electrical field
Thanks, very nice video, keep them going!
L
Thank you. Really useful
Cheers
Thank you so much for this useful video
Heck yeah! Thanks!
Thank you for this video
Thank you!
Useful for students
Need Video on Contactor and its accessories
Good presentation!!
It's very useful.
Pls clarify the difference of Instantaneous and Short circuit
Great explanation 💪💪💪
Thank you! I will be back with more videos soon!
Sir I have ha MCCB (Main breaker in MDB) rated as below:
MCCB NSx400S
400AT 3P
415V AC schneider
now my system voltage level is 127V/220V.Can i use the above MCCB.
THANKS
Hi do check out the rated voltage. It'll affect the max ssc the breaker can handle. It should be no problem
keep it up Sir G
Thank you! I will be back with more videos soon!
What is Icw??? Great video, saludos desde Argentina!
It is for utilization A breakers and lv switchgears. Usually it is the maximum short circuit withstand current rated up to a certain time. Usually 1 second or 3 seconds. Examples are 85kA 1 seconds, or 50kA 3seconds. Mucha gracias pal.
How calculate the MCCB currernt if 400A breaker its is the sum of three phases or each phase can connect to 80% of 400 A?
Every phase is rated at 400amps my friend. Overcurrent at any phase will trigger a trip. Using an trip unit you will be able to better check which is the errant phase.
Hello can i check if all mccb comes with a electronic trip unit?
Hello, there are different trip unit available. Some are thermal magnetic and not electronic. So the answer is no. So depending on your site requirement you may choose different trip units.
-Weet
Is the function of ICS &ICU dedicated to the MCCB's only?
It is for all circuit breakers in accordance to iec60947-2
Thank you sir 😀😀
Is it possible to disable the mccb breaker (to stay always on) easily?
Depending on the model, you might be able to off the protection with electronic trip units. In your case i would suggest using a switch disconnector. Much cheaper and always at the status u left it. However there will not be any protection
Sir how I calculate fault level of suitable mccb?
Using schneider ecostruxure power design software
Sir how to select ka value ?
Hi it depends on your system requirement. Usually we size from the transformera
Are you from Singapore?
Yes sir :) life is on.
Good job..Thank you for sharing
Thankyou 👏
Thanks
Thank you
Appreciate
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