Safe electrical equipment of machinery

Safe electrical equipment of machinery

Where a machine is powered by electricity it must be designed, constructed and equipped so that all hazards of an electrical nature are or can be avoided. The most common electrical hazard is electric shock. Electrical current can have irreversible repercussions on the nervous and muscle system as well as causing thermal effects. Overload, arcing or static discharge may also cause fires.

Machines must be equipped in such a way as to avoid direct contact with live cables or conductive parts that are usually live. The manufacturer must also prevent hazards arising from indirect contact with earth or a conductive part which may be live.

Standards for electrical equipment

Standard Title
EN 60204-1 Safety of machinery - Electrical equipment of machines -
Part 1: General requirements
EN 60947-1 to -8 Low-voltage switchgear and controlgear
Part 1: General rules/
Part 8: Control units for built-in thermal protection (PTC)
for rotating electrical machines
DBUV (German Social Accident Insurance) regulation 3 Accident prevention regulation - Electrical installations and equipment



Pilz Automation Safety L.P.
7150 Commerce Boulevard
Canton, MI 48187

Telephone: +1 734 354-0272

Technical Support

Telephone: +1 877 745-9872

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