Scary Fuse Boxes | Old House Web wwwouseweb›Scary Fuse BoxeslIf you find a fuse box stuffed with 30 amp fuses, or even all 20 amp fuses, chances are the fuses have been blowing frequently--and the occupants have installed heavier fuses than are safe. This house definitely needs additional wiring! Even if you find a newer 150 or 200-amp circuit breaker box, you're not entirely out of the woods. vintage fuse box | eBay www›Search›vintage fuse boxBox Of Vintage Fuses Including 4 New Eagle 690-25 5 Pack Of Glass Plug 25 Amp See more like this. LOT OF 5 LITTELFUSE USA 3AG 6/10A 313 250V FUSES SLOW BLOW VINTAGE BOX. New (Other) $4. or Best Offer +$4 shipping. 18 Sold 18 Sold. LOT OF 5 LITTELFUSE 3AG 3/10A 313 125V FUSES VINTAGE BOX. Brand New.