NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Standards
[CURRENT]
IEC 60255-149
IEC 60255-149
Measuring relays and protection equipment - Part 149: Functional requirements for thermal electrical relays
Title (German)
Messrelais und Schutzeinrichtungen - Teil 149: Funktionsanforderungen an den thermischen Überlastschutz