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Breaker Trip Curves

02/23/2010 2:50 PM

We have some FPE type NEF breakers (unfortunately) and am looking for the thermal and instantaneous trip curves for these breakers. Any help is appreciated

Thanks,

Ev1guy

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#1

Re: Breaker Trip Curves

02/23/2010 7:30 PM

There doesn't seem to be a great deal of information available (and the Federal Pacific / FPC website had nothing). Found the following link to some curves thou.

http://www.electricalmanuals.net/index.php?/Manuals/Low-Voltage-Equipment/BREAKERS/FPE/NEF/

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#2
In reply to #1

Re: Breaker Trip Curves

02/24/2010 1:30 AM

I know, it is hard to find info, I was going to use UL's 489, standard breaker testing.

Unfortunately, I work for the government and we still use cold war electrical systems, but only in some places.

Thanks for the start.

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