Low-voltage switchgear and controlgear - Part 1: General rules

1.1 Scope and object

This standard applies, when required by the relevant product standard, to switchgear and controlgear hereinafter referred to as equipmentand intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.

It does not apply to low-voltage switchgear and controlgear assemblies which are dealt with in IEC 60439.

NOTE – In certain clauses or subclauses of this standard, the equipment covered by this standard is also referred to as device, to be consistent with the text of such clauses or subclauses.

The object of this standard is to state those general rules and requirements which are common to low-voltage equipment as defined in 1.1, including for example:

– definitions;

– characteristics;

– information supplied with the equipment; – normal service, mounting and transport conditions; – constructional and performance requirements; – verification of characteristics and performance.

Digital inputs and/or digital outputs contained in switchgear and controlgear, and intended to be compatible with programmable controllers (PLCs) are covered by Annex S.

1.1DV.1 D2 Modification to 1.1 by adding the following:

1.1DV.1.1 This equipment is intended for installation in accordance with the national installation codes for use in ordinary locations. See Annex DVB, Table DVB.3, Ref. No. 14