This Eaton stop button, model 271540 M22S-PVLT from the M22S series, is a black, round, flat push-...This Eaton stop button, model 271540 M22S-PVLT from the M22S series, is a black, round, flat push-button switch with a turn-to-release unlocking mechanism. It features a 22 mm button diameter and a 38 mm product diameter. The button is designed for emergency stop functionality and is suitable for industrial applications. It offers high visibility and reliable operation, ensuring safety. The IP rating is IP67/IP69, and the cutout diameter is 22.5mm. It is also illuminated.
Best current price£33.54from Rapid Online - Rapid Electronics Ltd.
This Eaton stop button (model 271540 M22S-PVLT) is designed for industrial environments requiring reliable emergency stop functionality. It offers high visibility and robust protection with an IP67/IP69 rating, ensuring safety in demanding applications. A potential consideration is its specific turn-to-release mechanism, which requires user familiarization.
All features
Series
M22S
Model Part Number
271540 M22S-PVLT
Brand
Eaton
Extended Product Information
FAQs
What is the function of the 'turn-to-release' mechanism?
The 'turn-to-release' mechanism ensures that the emergency stop button, once pressed, remains latched in the stopped position and can only be reset by intentionally turning the button. This prevents accidental or premature resetting of the machine.
What does the IP67/IP69 rating signify?
IP67 means the button is protected against dust ingress and can withstand immersion in water up to 1 meter for 30 minutes. IP69K (implied by IP69) indicates protection against high-pressure, high-temperature water jets, making it suitable for environments that require frequent, intense cleaning.
Does this product include the electrical contact block?
Typically, the Eaton M22S stop button is sold as the actuator unit. The electrical contact block, which determines the switching function (normally closed, normally open), is usually sold separately and needs to be purchased based on your specific wiring requirements.
What is the diameter of the cutout required for installation?
The recommended cutout diameter for this button is 22.5mm.
Can this button be used in outdoor applications?
Yes, due to its high IP67/IP69 rating, it offers excellent protection against dust and water, making it suitable for many outdoor industrial applications where environmental resistance is crucial.
How do I reset the illuminated button?
To reset the button, you need to press it in first, and then turn it clockwise (or in the direction indicated by any markings). The illumination will typically turn off once the button is reset.
Troubleshooting
Button does not reset when turned
Ensure the button is fully engaged by pushing it in before attempting to turn. Verify the attached contact block is correctly installed and functional.
Illumination not working
Check the wiring to the illumination terminal on the contact block. Verify the power supply to the illumination circuit is active and at the correct voltage.
Device fails to stop machine operation
Confirm the button is wired correctly to interrupt the power or control signal for the machine. Check the integrity and function of the connected contact block. Ensure the button is properly latched when pressed.
Water ingress observed
Inspect the mounting seal and button surface for damage. Ensure the control panel cutout is properly sealed and the button is securely mounted to maintain the IP67/IP69 rating.
Pros and Cons
Pros
High visibility design for quick access in emergencies.
Robust IP67/IP69 rating provides excellent protection against environmental factors.
Illuminated feature improves operability in low-light conditions.
Designed for reliable emergency stop functionality in industrial settings.
Cons
Turn-to-release mechanism may require initial user training.
Specific cutout diameter (22.5mm) requires precise panel preparation.
Primarily suited for industrial applications, may be over-specified for lighter use.
Requires a compatible electrical contact block (not included).
Setup, Compatibility & Care Instructions
Setup:
Panel Preparation: Ensure a cutout of 22.5mm diameter is present in the control panel.
Mounting: Insert the button unit into the cutout and secure it using the integrated mounting mechanism or a separate locking nut if required by the specific panel configuration.
Contact Block Installation: Attach the appropriate Eaton M22S series contact block to the rear of the button assembly. Ensure it is correctly oriented and securely fastened.
Wiring: Connect the wiring to the electrical terminals on the contact block according to your system's requirements and safety standards.
Compatibility:
Designed for use with Eaton M22S series control components.
Requires compatible contact blocks (typically sold separately) to function.
Standard 22mm mounting hole compatibility.
Care:
Clean the exterior with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the plastic or illumination.
Periodically inspect the button for any signs of damage or wear.
Ensure the seal remains intact to maintain IP rating integrity.