4.65 out of 5 based on 26 customer ratings
(26 customer reviews )

AC power Dimmer module 40A-600V

12.49$

The AC Dimmer is designed for precise regulation of alternating current (AC) voltage and can handle loads up to 40A at 600V using the high-power TRIAC BTA40. To ensure stable operation and longevity, we recommend operating below the maximum limit.

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The AC Dimmer is designed for precise regulation of alternating current (AC) voltage and can handle loads up to 40A at 600V using the high-power TRIAC BTA40. To ensure stable operation and longevity, we recommend operating below the maximum limit.

Key Features:

  • Suitable for resistive and inductive loads, including heating elements (electric water heaters, underfloor heating, pool heaters), powerful AC motors, pumps, and fans.
  • Fully isolated control and power sections for microcontroller safety.
  • Supports both 5V and 3.3V logic levels, making it compatible with Arduino, ESP32, STM32, Raspberry Pi, and other microcontrollers.
  • Zero-cross detection for smooth and precise phase angle control.
  • Efficient heat dissipation with an integrated large aluminum heatsink and active cooling fan, ensuring stable dimmer operation.

Microcontroller Integration:

For Arduino-based projects, the dimmer is easily controlled using the RBDDimmer.h library, which simplifies handling of phase-cut dimming through hardware interrupts. The library supports multiple dimmers on a single microcontroller and offers precise control over power output.

For ESP32, STM32, and Raspberry Pi applications, the dimmer can be managed using PSM-based or phase-angle control techniques via GPIO pins. Example codes and integration guides are available in the Documents section and on our GitHub repository.

Safety Recommendations:

To protect both the dimmer and connected load devices from potential failures, we strongly recommend using a fuse (either a standard fuse or a switch box fuse). This precaution helps prevent damage and ensures long-term reliability.

Regular updates, firmware improvements, and troubleshooting tips can be accessed through our website and newsletter.

Technical characteristics

Weight 0.20 kg
Dimensions 14 × 5 × 5 cm

FrameWorks

ARDUINO

Arduino library: ESP32/8266, STM32, Arduino boards. Code examples.

  • Connection instruction and library
  • Example: Dimming value through the serial port
  • Example: Power ON/OFF
  • Example: Dimming with a potentiometer
  • Example: Toggle Dimming values
  • Example: Smoothly Dimming with buttons action
  • Two or more dimmers connection

ESPHome/Home Assistant

Dimming control to your ESPHome project.

  • YAML configuration entry
  • Connection GPIO details
  • Examples

Dimmers projects

Dimmer with ESP32 – Blynk IoT Platform. Arduino code, settings, Web and mobile APP.

Blynk IoT  is a full suite of software required to prototype, deploy, and remotely manage connected electronic devices at any scale: from personal IoT projects to millions of commercially connected products. With Blynk anyone can connect their hardware to the cloud and build a no-code iOS, Android, and web applications to analyze real-time and historical…
Read More Dimmer with ESP32 – Blynk IoT Platform. Arduino code, settings, Web and mobile APP.

Dimmer with ESP32 – ESP RainMaker Cloud platform + Mobile APP.

ESP RainMaker® is a complete system for building AIoT products with a minimal amount of code, empowering your team to develop and deploy secure, customized AIoT solutions. It covers all Espressif chips and modules, device firmware, voice-assistant integrations, phone apps and cloud backend. This helps you save a large investment in cloud, gain independence and focus…
Read More Dimmer with ESP32 – ESP RainMaker Cloud platform + Mobile APP.

Dimmer with ESP8266/ESP32 MQTT – Publish and Subscribe with Arduino IDE. Connecting to Home Assistant, Node-RED, Amazon AWS, and openHAB

This project shows how to use MQTT communication protocol with the ESP32 to publish messages and subscribe to topics from MQTT broker under servers like Home Assistant, Node RED, Amazon AWS, and openHAB. As an example, we’ll control the dimmer. The server can be either local or on the cloud. The ESP32 we’ll be programmed…
Read More Dimmer with ESP8266/ESP32 MQTT – Publish and Subscribe with Arduino IDE. Connecting to Home Assistant, Node-RED, Amazon AWS, and openHAB

Dimmers Q&A

How to choose AC dimmer module?

The main parameter is current power (Ampere/Watt). We recommend that the device load power value be no over than 70% of the dimmer value. Example: Dimmer 8A (230V*8A=1.8kWt), load = 8A*70%=5.6A (230V*5.6A=1.3kWt).

26 reviews for AC power Dimmer module 40A-600V

  1. Reviewer profile image
    5 out of 5

    b***s –

  2. Reviewer profile image
    4 out of 5

    J***R –

    it s a good device and it works well

  3. Reviewer profile image
    5 out of 5

    T***k –

    Very solid, I do recomend.

  4. Reviewer profile image
    5 out of 5

    R***u –

    Perfect to manage power from solar panel to waters heater

  5. Reviewer profile image
    4 out of 5

    G***u –

    Is said to be compatible with 3v command, but needs 5v to work well. the item arrived with the fan mounted on the wrong direction, but it’s easy to fix. after that, it works well

  6. Reviewer profile image
    5 out of 5

    z***r –

    Article according to the description. I’m going to use it to order a electric water heater with a solar router DIY…

  7. Reviewer profile image
    5 out of 5

    M***E –

    The dimmer works well, I had difficulty finding an example showing how to connect the different wires, there is nothing extraordinary but when you use V you like to be sure to do well on the 1st try. It is exactly the same for the connection of the fan, which moreover makes a lot of noise especially when it is not working at full speed.
    Conclusion: I am satisfied with the device even if I only tested it with a bulb. And mr the seller I invite you to provide a diagram of cablage with the dimmer. You could also offer a suitable box to avoid touching the high voltage lines.

  8. Reviewer profile image
    5 out of 5

    p***x –

  9. Reviewer profile image
    5 out of 5

    Google Shopper –

    OK

  10. Reviewer profile image
    5 out of 5

    A***r –

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