The emergency stop button once activated and pushed should remain in the ‘pushed’ condition, switching off the equipment and not reset itself until it is intentionally reset. The background color immediately surrounding the ‘Red’ mushroom button should be ‘Yellow’, this is usually achieved by the use of color enclosures, colored disc, or adding the color to the stem of the button. Much like the shape of the button, it should be coloured ‘Red’ to ensure the button is highly visible and recognisable in an emergency situation.

The shape of the emergency stop button should be ‘mushroom shaped’, so that it is more visible, recognisable, and easily activated by a human palm. To ensure that the requirements are met, the following lists the minimum requirements for an ’emergency push button device’: 🟧 Push Button shaped like a Mushroom Graphic representation, i.e, a graphic on a digital display.įor this article, we will concentrate on the Push Button Types, as these are mainly seen within a construction project.Foot-operated switches without a mechanical guard.🟩 What different types of E-Stops are allowed?Īlthough the push-button type is the most common, there are other types of stops that can be used, according to NFPA 79 – Electrical Standard for Industrial Machinery

🟧 Can Emergency Stop Buttons be Covered?.🟧 How do you Bypass an Emergency Stop Button?.

⬜ Emergency Stop Inspection Checklist Template.

🟩 Periodic Testing of Emergency Stops?.

🟩 Protection from tampering and removal.

🟩 What are the stopping requirements once the button is activated?.

🟧 No Flat or Graphical Representations.

🟧 Unlatching Direction to be Identified.

🟩 Emergency push button height requirements.

🟩 What different types of E-Stops are allowed?.

Red press button