320Amps,600VAC,4Terminals,Single Phase,3 wire,ringless type.NEMA 3R type construction 1.5mm thickness (#16 gauge) galvanized steel sheet(AISI G90) ,electrostatically applizéiert epoxy gebakene gro Pudder fäerdeg.Heavy duty Hiewel Contournement.Heavy duty tin plated co-duty plated. jaw.OVERHEAD/UNDERGROUND.Convenient knockouts an der Säit zréck an ënnen.The fix hub Gréisst 2 "bis 2-1 / 2" fir Optioun.