BS EN IEC 60204-11:2019

This standard BS EN IEC 60204-11:2019 Safety of machinery. Electrical equipment of machines is classified in these ICS categories:

• 29.020 Electrical engineering in general
• 13.110 Safety of machinery

This part of IEC 60204 applies to electrical and electronic equipment and systems to machines, including a group of machines working together in a co-ordinated manner, which operate at nominal voltages above 1 000 V AC or 1 500 V DC and not exceeding 36 kV AC or DC with nominal frequencies not exceeding 60 Hz.

In this document, the term HV equipment also covers the LV equipment forming an integral part of the equipment operating at high voltage. The requirements in this document primarily cover the parts operating at high-voltage except where explicitly stated otherwise.

The electrical equipment covered by this document commences at the point of connection of the supply to the electrical equipment of the machine (see 5.1).

This document is a generic safety standard. It does not cover all the requirements (e.g. guarding, interlocking or control) which are needed or required by other standards or regulations in order to safeguard personnel from hazards other than electrical hazards. Each type of machine has unique requirements to be accommodated to provide adequate safety.

This part of IEC 60204 specifically includes, but is not limited to, machines as defined in 3.29 ( Annex A lists examples of machines whose electrical equipment can be covered by this document).

For protection against electric shock from high-voltage equipment, this document refers to IEC 61936‑1 . When it comes to low-voltage equipment, this document refers to IEC 60204‑1:2016 .

Additional and special requirements can apply to the electrical equipment of machines that

• are used in the open air (i.e. outside buildings or other protective structures);

• use, process or produce potentially explosive material (e.g. paint or sawdust);

• are used in potentially explosive and/or flammable atmospheres;

• have special risks when producing or using certain materials;

• are used in mines.

Hazards as a result of noise and vibration are excluded from the scope of this document.