Pro Audio Design Forum

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

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