SIS SS EN 50 023-1989 Low-voltage switchgear and controlgear for industrial use — Mounting rails — Top hat rails 75 mm wide forsnap-on mounting of equipment
This standard specifies 75 mm wide steel top hat rails for the snap-on mounting of equipment.
SIS SS EN 50 023-1989 history
1989SIS SS EN 50 023-1989 Low-voltage switchgear and controlgear for industrial use — Mounting rails — Top hat rails 75 mm wide forsnap-on mounting of equipment