Sealey extra heavy duty arc welders with accessory kit sealey 250xtd this arc welder from sealey offers a robust heavy weight transformer with forced air cooling system for increased duty cycles at all amperages this model meets all relevant ce standardsthis welder features dual voltage input for use on 230v 1ph or for higher performance on 415v 3ph sealey 250xtd arc welder 250amp with accessory kit