Define the access event
Identify who opens the guard, why, how often and what hazards remain at that point.
GUARD INTERLOCKING DEVICES
EN ISO 14119 machine guard interlocking devices
The interlock-design page for teams connecting movable guards to safe machine behaviour while reducing incentives and opportunities for defeat.
FROM STANDARD TO SCOPE
Four conversations before the design is frozen
Use EN ISO 14119:2013 to turn an access requirement into a complete and credible interlocking function. The exact solution still depends on the machine risk assessment, applicable EU framework, current standards and any relevant C-type machinery standard.
Understand stopping and run-down
Stopping time and residual danger influence device selection and whether guard locking may be needed.
Design against foreseeable defeat
Device type, position, fixing and operating pressure should reduce both opportunity and incentive to bypass the safeguard.
Validate the full function
Test the guard, actuator, device, control logic, outputs, stop response, reset and restart conditions together.
WHY IT MATTERS
Interlocking is about machine behaviour—not a switch bolted to a door
The best solution balances safe access, stopping performance, guard mechanics and production reality. A difficult or unreliable access arrangement creates pressure to defeat it.
EU STATUS + DESIGN CONTEXT
Use the standard inside the complete conformity strategy
Harmonised standards are generally voluntary. Where an exact reference is published in the Official Journal, it can support presumption of conformity only for the essential requirements it covers. It does not replace the complete risk assessment, technical file, conformity procedure or machine-specific requirements.
Directive period
The current consolidated citation decision supports Machinery Directive 2006/42/EC. Check the precise reference, restrictions and transition dates.
Regulation transition
Regulation (EU) 2023/1230 applies generally from 20 January 2027. Do not assume a Directive-era citation automatically answers the future Regulation position.
C-type standards
A machine-specific C-type standard may provide more specific solutions or requirements for a particular machinery category.
Edition and Official Journal note
The current consolidated EU decision lists EN ISO 14119:2013 for the Machinery Directive. A newer ISO edition exists; do not assume it carries the same harmonised status. Check the current consolidated EU decision and Regulation (EU) 2023/1230 at the point of use.
COMMON QUESTIONS
EN ISO 14119:2013 FAQs
Does every interlocked guard need guard locking?
No. The need depends on risk, stopping behaviour and whether the hazard can be reached before danger has passed.
Can closing the guard automatically restart the machine?
Do not assume so. Restart behaviour needs specific risk assessment and must meet the applicable machinery and control-system requirements.
Which edition should an EU project use?
The current consolidated EU decision lists EN ISO 14119:2013 for the Machinery Directive, while a newer ISO edition exists. Check the exact EN adoption and Official Journal status for the project.
Turn the standards work into a buildable guard layout.
Send the machine layout, access requirements and target market. We’ll help shape a practical modular guarding concept for the project team to assess.
Start the guarding conversationCommercial information only. This page is not legal, engineering, conformity-assessment or certification advice and does not reproduce controlled standards content.
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