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Lea Tvss Gb50S-277/480-3Y-Ds 277 / 480V Surge Suppressor $910.78 https://www.ebay.com/itm/221391752537?hash=item338bfa0d59:g:…
Innovative Technology P-3Y Surge Suppressor Tvss 277/480 $886.05 https://www.ebay.com/itm/274383196561?hash=item3fe2835191:g:…