Sperrelais /SCIENCE,ENG-ELECTRICAL/
[DE] Sperrelais
[EN] interlock relay
[FR] relais d' interdiction
Sperrelais,Sperrglied /ENG-ELECTRICAL/
[DE] Sperrelais; Sperrglied
[EN] blocking relay; restraining relay
[FR] relais de blocage; relais de verrouillage