Relevant Standards for PLC System Users

Relevant Standards for PLC System Users

Introduction The following standards are a selection of the most important European and international standards which are relevant for PLC system users.

Product Standards

NOTE: Standards can often provide security concerning product liability, but they are not legal standards. Standardization organizations are not liable for the suitability of the standards. Only the regulations in each individual country are binding. The following European and international standards define safety and EMC requirements for PLC system users. The selection has been purposefully kept small and mainly contains product standards. Within each individual standard, you will find a list of other standards which refer to certain products and may be valid for your application:

General standards

The following European and international standards define safety and EMC requirements which do not refer to certain products and may be valid for your application:

EN-No. Corresponding IEC No. Title EN 61131-4 IEC 61131 -4 Programmable logic controllers – part 4: Guidelines for users

EN 50178 IEC 62103 Electronic equipment for use in power installations

EN 60439 - 1 IEC 60439 -1 Low voltage switching device combinations

EN 60950 IEC 950 Safety of IT equipment

EN-No. Corresponding IEC No. Title

HD 384.4.41 IEC 60364-4-41 Electrical Installations of Buildings - Part 4: Safety measures Chapter 41: Protection against electrical shock

EN 61140 IEC 61140 Protection against electric shock. Common requirements for systems and equipment

EN 60204 -1 IEC 60204 -1 Safety of machines - electrical equipment of machines

EN 50310 Use of measures for equipotential bonding and grounding in buildings with IT equipment

EN-No. Corresponding IEC No. Title

EN 50174 -1 IT - installation of communication cabling – part 1: Specifications and quality assurance DIN EN 50174-2 IT - installation of communication cabling – part 2: Installation planning and practices in buildings