Product Introduction
The DU-2211D-2 series is a robust metal push-button switch built for rugged industrial environments. As an illuminated push-button, this ring-LED switch delivers clear visual status feedback for operators working with machinery and control cabinets.
It consists of a button cap, reset spring, fixed contacts, movable contacts and housing, fitted with a rubber sealing ring for waterproof protection. This LED push-button switch features a contact self-cleaning function to maintain reliable contact performance over repeated cycles. Users can choose between momentary (auto-reset) or latching (push-on, push-off) operation modes. Designed for industrial control applications, it delivers consistent actuation under typical industrial operating cycles.
Technical Parameters & Electrical Ratings
| Feature | Specification Details |
| Operating Voltage | 12-24V; custom versions available |
| Contact Configuration | 1 NO + 1 NC (one normally open, one normally closed) |
| Mounting Diameter | φ12 / 16 / 19 / 22 / 25 / 30 mm |
| LED Brightness | Solid-color LED, > 100 cd/m² |
Physical Dimensions & Actuator Style
The DU-2211D-2 series of illuminated push-buttons fits the standard 22 mm mounting hole, with additional sizes available for different panel projects. Our factory supplies this ring-LED metal push-button switch in a full size series for different panel projects:
Head Shape: Flat-head design for low-profile panel mounting
Illumination: Ring-LED with 5 optional colors - Red, Green, Blue, Yellow, White
Materials & Robust Performance
This IP65 illuminated metal push-button is built with the following components:
Housing: Nickel-plated brass shell treated for oxidation-resistance and corrosion-resistance
Contacts: Thickened silver-plated contacts reduce contact resistance. A built-in self-cleaning structure helps maintain stable electrical contact for this momentary /latching push-button switch.
Base: V0 flame-retardant plastic
Protection: IP65 dust-tight and water-jet resistant, IK10 mechanical impact resistance
Applicable Scope & Applications
This waterproof ring-illuminated push-button suits diverse industrial application scenarios:
Industrial Automation: CNC machine tools, automated production lines, control cabinets
Transportation: Automotive electronics
Access & Control: Access control systems, elevator control panels
Instrumentation: Testing devices requiring status light indication
About Us
CHNANMA provides CE-certified products from our 6,000 m² plant with ISO-certified management systems. We offer factory-direct pricing and professional OEM/ODM support for our ring-LED metal push-buttons. Our solutions are engineered for stable performance in industrial automation and typical industrial control applications.
FAQ
Q: What mounting hole sizes are available for the DU-2211D-2 push-button?
A: The DU-2211D-2 series supports multiple panel cutout sizes: 12 mm, 16 mm, 19 mm, 22 mm, 25 mm and 30 mm. The 22 mm is the most commonly-used standard size.
Q: What are the LED color options? What is the working voltage for LED illumination?
A: Available ring-LED colors: Red, Green, Blue, Yellow, White. Standard LED operating voltage is 12-24 V; custom voltage versions can be provided upon request.
Q: Do you support OEM / ODM customization? What is your warranty term?
A: Yes, we support OEM & ODM customization. Our standard warranty is 1-year for manufacturing-related defects from the date of delivery. We can also provide dimension drawings for your panel design reference.
















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