NBN C 63-439-1-1990
Low-voltage switchgear and controlgear assemblies Requirements for type-tested and partially type-tested assemblies

Standard No.

NBN C 63-439-1-1990

Release Date

1990

Published By

BE-NBN

Latest

NBN C 63-439-1-1990

NBN C 63-439-1-1990 history

• 1990 NBN C 63-439-1-1990 Low-voltage switchgear and controlgear assemblies Requirements for type-tested and partially type-tested assemblies