Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Keerstroomrelais-nl#Sense
Contacteur-disjoncteur polarisé-fr#Sense
Reverse current relay-en#Sense
Rückstromrelais-de#Sense
Disjuntor polarizado-pt#Sense
Relé direccional-es#Sense
Tilbagestrømsrelæ-da#Sense
Ηλεκτρονόμος ανάστροφου ρεύματος-el#Sense
Interruttore polarizzato-it#Sense
Relé differenziale-it#Sense