ThePlugNEMAOutlet-InjectionMoldedisapowerplugthatisoneoftheACinletcomponents.Theseplugshavetwopoleswithagroundpinrated125voltsmaximum.Theplughastwoflatparallelpinswiththesamegeometryandasolidpinoraflatmetalfoldedintoa'U'shapeontheotherside.Thegroundpinislongerthanthetwoparallelpinssothatthedeviceisgroundedbeforesupplyisconnected.Theneutralin sertion pointinthesocketiswidertoaccommodatepolarizedtypeplug.Theneutralbladeoftheplugisnotalwayswiderthanthelineblades,sincethegroundpinenforcespolarity.ThistypeofplugorconnectoriscalledaNEMA5-15.ThepowerplugisusedinXROptima systems.