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Participant

Join Date: Apr 2011
Posts: 3

MCCB & MCB Auxiliary

04/17/2011 1:16 AM

Hi Dear

I have 2 question.

1- Can we used moeller LZM1 in a 125Vdc circuit with 20 KA short circuit current?

2- how long (minutes ) a current can through from an mcb auxiliary contact ? ( for example Z7 AS shunt trip relay)?

Your sincerely

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Guru
United States - Member - New Member Engineering Fields - Power Engineering - New Member

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#1

Re: MCCB & MCB'Auxiliry

04/17/2011 2:01 AM

Both of those questions would be things that Moeller should be able to answer. Have you no access to their data or a representative?

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Guru
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#2

Re: MCCB & MCB'Auxiliry

04/17/2011 4:08 AM
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Participant

Join Date: Apr 2011
Posts: 3
#3
In reply to #2

Re: MCCB & MCB'Auxiliry

04/18/2011 12:52 AM

No i do not find any thing about it beside no one answer to my email .

tanks

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Guru
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#5
In reply to #3

Re: MCCB & MCB'Auxiliry

04/19/2011 3:34 PM

Phone them, then.

e-mail is low-priority communication, which waits until the individual whose account has received it can be bothered to answer it.

The telephone will be answered immediately by someone in the office for, while it rings, no-one else can get through on it.

Down with e-mail-itis!

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Power-User

Join Date: Jun 2009
Location: New Zealand
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#4

Re: MCCB & MCB Auxiliary

04/18/2011 3:04 AM

Hi Tech

Had a quick look at the circuit breaker in question, not sure of if you can use this circuit breaker for DC, it does not say that you can use it on the spec sheet that I looked at.

You also have not specified how you want to use this CB, IE: Operating current

The second part to you question, again I am unfamilar with termonilogy (Z7 AS) but as this is just an AUX Contact, it is not designed for load conditions or for tripping conditions.

Hope this is of some help.

Cheers

Joe

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Joe Sparky (1); JRaef (1); PWSlack (1); Tech.teacher (1); TonyS (1)

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