Powerpax uk sw4009u 12vdc 500ma mini plugtop psu usa plug powerpax uk sw4009u vi p the powerpax sw4009u is a plug top switch mode power supply fitted with a usa plug this plugtop with a 2 1mm barrel connector supplies up to 8 6w continuously with full en 55024 2010 en 61000 4 5 safety approvals the unit will provide a reliable single output level voltage supply p sw4009u vi 12vdc 500ma mini plugtop psu usa plug level vi