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Low-Voltage Power Distribution and Installation Technology

Feeder MCCB for 690V with short circuit capacity 40kA

Thread Starter: Adi_EA_2   Started: 11/10/2009 9:37 AM   Replies: 4

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  11/10/2009, 9:37 AM
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Dear All,

Is there any info for MCCB 3WL application for feeder at 690V with short circuit capacity (Icu) 40kA?

Should we added fused limiter current? if so, please advice the combination.

rgds
raden adi k.s
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  11/12/2009, 9:26 AM
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Hi Adi, 

Your question is a bit unclear. The 3WL circuit breaker is an ACB "Air Circuit Breaker". The 3VL circuit breaker is a MCCB "Molded Case Circuit Breaker". 
 

Please see attached page from the LV 1 T 2009 catalog. There you'll find the Icu value for the 3WL circuit breaker. You'll see that every 3WL circuit breaker, independent to the switching capacity class, fulfill the requirement or Icu = 40kA@690V. 
 

Greetings,
Gazza

Attachment: pages from LV 1 T 2009 catalog chapter 15.pdf  (13 Downloads)

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  11/12/2009, 3:19 PM
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Dear Gascoigne,

Thanks for the reply.

I mean is MCCB 3VL.

do you have any suggestion to have MCCB 3VL for the requirement feeder with Icu of 40kA at 690V AC?

regards
adi
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  5/23/2014, 7:28 PM
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Adi_EA_2 wrote:
Dear Gascoigne,

Thanks for the reply.

I mean is MCCB 3VL.

do you have any suggestion to have MCCB 3VL for the requirement feeder with Icu of 40kA at 690V AC?

regards
adi

Hi there 

You wont able to get 3VL MCCb of 40kA Icu instead 36kA is available 
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  5/24/2014, 8:02 AM
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@nkur wrote:
Adi_EA_2 wrote:
Dear Gascoigne,

Thanks for the reply.

I mean is MCCB 3VL.

do you have any suggestion to have MCCB 3VL for the requirement feeder with Icu of 40kA at 690V AC?

regards
adi

Hi there 

You wont able to get 3VL MCCb of 40kA Icu instead 36kA is available 


Dear @nkur

Their is no availbility of 36KA Breaking capacity MCCB in 3VL,in it 55KA nd 70 KA rating is avilable. while in 3VT you got Breaking capacity from 25kA to 65kA

"It’s better to give than to receive. Especially advice"
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