1 Scope and object

This standard applies, when required by the relevant product standard, to low-voltage switchgear and controlgear hereinafter referred to as "equipment" or “device” 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.

This standard states the general rules and common safety requirements for low-voltage switchgear and controlgear, including:

– definitions;

– characteristics;

– information supplied with the equipment;

– normal service, mounting and transport conditions;

– constructional and performance requirements;

– verification of characteristics and performance;

– environmental aspects.

This standard does not apply to low-voltage switchgear and controlgear assemblies which are dealt with in IEC 61439 series, as applicable.

1 1.1 This equipment is intended for installation in accordance with CSA C22.1, Canadian Electrical Code (CE Code, Part I); Mexican Official Standard, NOM-001-SEDE; and the US National Electrical Code (NEC), NFPA 70.

Summary of Topics

This sixth edition of ANSI/UL 60947-1 is a IEC-based standard covering general requirements for industrial control equipment. It is based on the edition 5.2 of IEC 60947-1.

Please note that the national difference document incorporates all of the national differences for UL 60947-1.