Ga wasu aikace-aikace a cikin kabad ɗin sarrafawa ko na'urar canza wutar lantarki, yana da kyau a kare haɗin hanyar ciyarwa tare da fis ɗin daban. Tubalan tashar fis ɗin tare da mai riƙe fis ɗin don layin DIN sun ƙunshi tushen toshe na ƙarshe da mai ɗaukar hanyar haɗin fis ɗin don hanyoyin haɗin fis daban-daban don fis ɗin AC da DC.
Fus ɗin sun bambanta daga masu riƙe fis ɗin da aka haɗa zuwa masu riƙe fis ɗin da aka haɗa, rufewa mai iya sukurori zuwa fis ɗin da aka haɗa don motoci da ƙananan fis ɗin mota tare da nunin yanayin LED da kuma ba tare da shi ba. Fis ɗin da aka yi amfani da shi yana iyakance bayanan da aka ƙididdige (ƙididdigar halin yanzu da ƙarfin lantarki mai ƙididdigewa) ko Low Leakage Current - LLC na toshewar tashar fis ɗin.