Help identify Varistor

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lukebarber
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Joined: Wed Nov 02, 2016 10:13 am

Help identify Varistor

Post by lukebarber »

I'm trying to understand how some old equipment from ABB is working. I have schematics for the circuit boards, but it do not contains any information about the parts. Can you please help me identify these varistors? The photo is attached.

This is off of an OLD VFD.

http://www.clrwtr.com/PDF/ABB-Drives/AB ... Drives.pdf
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Tyristors.jpg
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mediatechnology
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Joined: Sat Aug 11, 2007 2:34 pm
Location: Oak Cliff, Texas
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Re: Help identify Varistor

Post by mediatechnology »

Those are Panasonic parts.
7 mm K=10%
I think the "431" in the part number is 43 X 10V or 430V.

Have a look here: http://pdf1.alldatasheet.com/datasheet- ... D431K.html
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