Zinsco Panelboard Information

[msnell@sungenia.com]

I'm looking for information on a Zinsco single-phase 400A, 240VAC panelboard with a DS-4564 designation. I'm looking for the AIC rating of the big double throw AC cutoff switch on the front. Can anyone help me?

Thank you very much,
Mike Snell

 

[norcal]

Doubt your going to find any info on Zinsco relics, if is branded Zinsco, it was made in the mid 1970's at the latest and the successor manufacturers GTE Sylvania, & Challenger, no longer exist.

 

[kwired]

I think you can assume 5kA if you have no other information.