ProMax PPS12006WRM 12mm Metal Push Button Switch Waterproof Momentary White LED 3V-6V

Specifications

• Model: PPS12006WRM
  
• Switch Type: Momentary (Normally Open)
  
• Mounting Hole Diameter: 12mm
  
• Illumination Type: Ring LED
  
• LED Color: White
  
• LED Operating Voltage: 3V – 6V DC
  
• Switch Contact Rating: 2A / 36V DC [Estimated]
  
• Waterproof Rating: IP65 
  
• Body Material: Stainless Steel / Nickel-Plated Brass
  
• Terminal Type: 4-pin Solder Terminals (2 for Switch, 2 for LED)
  
• Thread Pitch: 0.75mm [Estimated]
  
• Operating Temperature: -20°C to +55°C [Estimated]
  
• Compatible Platforms: Arduino, ESP32, Raspberry Pi, STM32, Custom Control Panels

Unlock New Capabilities

Past Projects
If you've already experimented with standard plastic tactile switches on a breadboard or built basic push-button toggles for Arduino LED projects, you already understand digital inputs — which means you're perfectly ready to upgrade to a robust control panel interface.

Feature Upgrade
This ProMax illuminated switch unlocks professional enclosure panel control, heavy-duty machinery safety triggers, marine-grade outdoor power toggles, and sleek human-machine interface (HMI) inputs. These are robust, weather-sealed deployments that you cannot achieve reliably with unprotected, non-threaded standard tactile buttons. 

Effort Level & Minimum Hardware

• Microcontroller or Control Circuit (e.g., Arduino Uno or ESP32) — to register the momentary open/close state change when pressed.
  
• 3V to 6V DC Power Source — to safely drive the integrated white LED ring indicator without burning out the internal resistor.
  
• Connecting Hookup Wires — to route the signals from the switch's remote panel location to your circuit board.
  
• Soldering Iron and Solder — to make permanent, insulated electrical connections to the rear terminals, as this switch will not fit standard breadboard holes.

Virtual Technician & Wiring Guide
⚠️ Safety Warnings:

• LED Overvoltage Protection: The embedded ring illumination is rated strictly for 3V–6V DC. Directly linking these pins to 12V or 24V rails without an appropriate external drop resistor will immediately burn out the white LED element.
• Thermal Stress Management: Keep soldering tip contact brief (under 3 seconds per pin). Excessive heat transferred through the terminals will distort the internal spring mechanisms and damage the blue plastic base housing.
• Momentary Contact Behavior: Remember that this is a momentary action switch. Electrical continuity is completed only during physical engagement; removing your finger resets the contacts to their default state instantly.

Wiring — ProMax PPS12006WRM to 5V Microcontroller

Package Includes:

1× ProMax PPS12006WRM 12mm Metal Push Button Switch Module

1× Weatherproof Nitrile Rubber Sealing O-Ring

1× Hexagonal Mounting Retaining Nut 

Frequently Asked Questions

1. What does "momentary" mean for this switch?
   Momentary means the switch only maintains electrical contact while your finger is physically pressing the button. Once released, the internal spring mechanism instantly resets it to its original open state.
2. Does this switch click when pressed?
   Yes, it features a crisp, distinct mechanical click feedback when actuated, providing clear tactile confirmation to the operator that contact has been successfully engaged.
3. What is the exact mounting hole size required for installation? This switch requires a standard 12mm diameter cutout hole on your front faceplate, custom panel, or project chassis enclosure.
4. Can I run the integrated ring LED at 12V DC?
   No, the internal ring LED is rated strictly for 3V to 6V DC. Connecting it directly to a 12V power supply rail will instantly burn out the illumination element unless a suitable current-limiting resistor is added.
5. What value resistor do I need if I want to run the LED at 12V?
   To drop a 12V power source down to safe voltage parameters for this indicator loop, a 330Ω to 470Ω resistor should be wired in series with the positive terminal pin.
6. What is the maximum current rating for the switch contacts? The switch contact terminal junctions are rated to handle currents up to 2A at voltages up to 36V DC. Do not use it to directly toggle high-power household AC appliances.
7. Can this switch be used for AC voltage circuits?
   It is engineered primarily for low-voltage DC automation logic. For alternating current applications, it should only be used to toggle the low-voltage coil circuit of a dedicated AC contactor or solid-state relay.
8. How many terminal pins are on the back of this switch and what do they do?
   There are 4 terminal pins on the blue base plate. The pins marked with "+" and "-" feed power directly to the white LED ring, while the remaining two unmarked tabs control the normally open switch contact loop.
9. Does it matter which way I wire the switch contact pins?
   No, the two mechanical switch terminals are entirely non-polarized. Current can flow safely through them in either direction without affecting operation.
10. Is the internal LED ring polarized?
    Yes, the LED indicator pins are strictly polarized. You must wire the terminal stamped with a "+" sign to your positive DC control line and the "-" terminal to your common ground return.
11. Can I use the mechanical switch without wiring or turning on the LED?
    Yes, the switch contact poles and the white LED indicator loop run on entirely isolated internal pathways. The push button will function perfectly as a physical input even if the LED pins are left completely unguided.
12. Is this switch directly compatible with 3.3V development boards like the ESP32?
    Yes, the switch contact loop functions flawlessly with 3.3V logic platforms. Additionally, the white ring LED illuminates cleanly when driven directly by a 3.3V power pin.
13. Do I need an external pull-up or pull-down resistor for the microcontroller interface?
    Yes, it is highly recommended to enable the microcontroller's internal pull-up resistor inside your firmware configuration, or introduce an external 10kΩ resistor to prevent a floating input state when the button is open.
14. Can the LED pins be driven directly by an Arduino GPIO pin?
    Yes, standard Arduino digital output pins can supply up to 20mA at 5V, which falls safely within the current boundaries required to drive the internal white LED accent ring.
15. What does the IP65 rating mean for this push-button switch?
    An IP65 rating signifies that the front metal switch face is fully dust-tight and completely protected against low-pressure water splashes or spray from any direction when clamped securely with its rubber O-ring.
16. Can this switch be completely submerged underwater?
    No, while it is fully weather-sealed against outdoor rain, high humidity, and direct splashes, it is not rated for continuous underwater submersion or diving enclosure panels.
17. Is the rear blue plastic terminal section also waterproof?
    No, the water-resistant seal applies exclusively to the front metallic actuator face and the panel mounting threshold. The rear solder pins must be housed inside a sealed, dry junction box if deployed in wet field conditions.
18. Why is my microcontroller registering multiple phantom presses for a single button click?
    This behavior is caused by common mechanical contact bounce as the metal tabs settle. It can be easily corrected by adding a brief 10ms to 20ms software debounce filter delay inside your input read code loop.
19. My switch clicks mechanically, but the microcontroller does not detect any press. How do I fix this?
    Verify that a common ground path is shared between your switch terminal layout and your microcontroller board, and ensure your input pin is not configured incorrectly as a standard output.
20. The white ring LED is not lighting up even though it is wired to a 5V source. What should I check?
    Check the orientation of your power leads on the rear tabs. Because LEDs are diodes, reversing the positive and negative connections to the "+" and "-" pins prevents light output. Swapping the wires resolves this instantly.