Revisions to BS Standard
BS EN 60439-1 has been revised and restructured. The new standard to which low-voltage switchboards and motor control centres should be manufactured is BS EN 61439-2: Power switchgear and controlgear assemblies (PSC).
The Standard uses as a reference BS EN 61439-1: General Rules
The New Standard BS EN 61439-1 is the General rules for the 61428 series and applies only when required by the relevant assembly standards.
BS EN 61439 Part 2 Power switchgear and controlgear Assemblies (PSC-Assemblies). This standard defines the specific requirements of power switchgear and controlgear Assemblies (PSC-Assemblies), the rated voltage of which does not exceed 1 000 V a.c or 1 500V d.c.
BS EN 61439 Parts 1 & 2 are harmonized with IEC 61439 Parts 1 & 2 respectively.