Reserved for extreme emergency states.
The primary source for the official English/French bilingual version.
Used strictly for emergency stop, stop, or de-energizing. A red button must always initiate a stop or safe condition. iec 60073 pdf
Warning or danger (higher frequency = higher urgency). Why You Need the IEC 60073 PDF
Used to initiate normal operation, start, or energize a system. Reserved for extreme emergency states
IEC 60073 is often confused with IEC 60445 (terminal markings) or IEC 61310 (safety of machinery – indication, marking, actuation). While related, IEC 60073 is the foundational “color and sense” code.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. A red button must always initiate a stop or safe condition
It is the definitive reference for IEC 60204-1 (Safety of machinery) and other safety standards.
High-frequency flashing denotes a higher level of urgency than low-frequency flashing. Navigating the IEC 60073 PDF Document
: Ensure red and green are never confused. Avoid using green for "system running" if that running state implies a hazard.
Organizations like ANSI (US), BSI (UK), or DIN (Germany) also provide access to this standard. IEC 60073:2002