Clockwise movement typically increases a value or activates a system. 3. Acoustic/Auditory Coding While less common, IEC 60073 defines the use of sound: Continuous sound: Normal state, monitoring.
Used to initiate normal operation, start, or energize a system.
Operators can understand machine status instantly, regardless of language barriers.
To be CE marked or meet other regulatory requirements, machinery must adhere to these international standards. iec 60073 pdf
As a under IEC Guide 104, its principles are intended to be used consistently across all electrotechnical equipment to maintain a "common language" for safety. Core Coding Principles
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IEC 60073 is far more than a technical document—it is the internationally recognized foundation for . From the three-color beacon on a factory floor to the push-button on a medical device, the standard's principles protect lives and property every day. Clockwise movement typically increases a value or activates
IEC 60073 is a critical standard for HMI design, providing guidelines for creating safe, efficient, and user-friendly interfaces. By understanding the principles and requirements of IEC 60073, organizations can improve human-machine interaction, reducing errors and improving overall performance. Whether you're an HMI designer, operator, or manager, IEC 60073 is an essential resource for ensuring effective and efficient HMI design.
The first test came in the form of a storm. Lightning struck the substation and sensors flooded the control system with alarms. In the chaos, the standard’s lexicon proved its worth. Operators—some new, some half-asleep—responded in sync. Where previously overlapping alerts had created confusion, now the hierarchy of symbols guided hands and attention. A red flashing beacon pulled the senior engineer to the transformer room; a low repeating tone told a junior technician to isolate a feeder; a green steady light confirmed a successful reset. The plant staggered but held.
: Used strictly for Emergency Stop, Emergency Off, or Stop/Off functions. GREEN : Used for Start/On functions. Used to initiate normal operation, start, or energize
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.
⚪ : Neutral. Used for general information where no specific safety meaning is attached. Coding for Actuators (Buttons)
Ever looked at a machine control panel and wondered: Why is the emergency stop always red? Why is the start button green?
Using raised textures or symbols on the button surface so operators can identify them by touch alone. Why Engineers Need the Official IEC 60073 PDF
The complete text of IEC 60073 is a protected document and typically requires purchase. You can access the official version or previews through these platforms: