SS EN 61811-50 Ed. 1 (2002)现行
Electromechanical All-or-nothing Relays - Part 50: Sectional Specification - Electromechanical All-or-nothing Telecom Relays Of Assessed Quality
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Applicable to electromechanical all-or-nothing telecom relays of assessed quality. Relays according to this standard are provided for operation in telecommunication applications.
Supersedes SS EN 116500. (06/2005)
I.S. EN 61811-50:2002 - Identical
NF EN 61811-50:2003 - Identical
IEC 61811-50 Ed. 2.0 - Identical
NBN EN 61811-50:2002 - Identical
DIN EN 61811-50 (2002-11) - Identical
BS EN 61811-50:2002 - Identical
EN 61811-50:2002 - Identical
