AC Dimmer Module 40A, 1 channel, 3.3V/5V logic, AC 600V-40A
- High-power dimmer for heaters, single-phase motors, pumps, and ventilation systems (up to 40A).
- Smooth AC voltage regulation for precise control, not just on/off switching.
- Efficient cooling system with a large heatsink and active fan for heat dissipation.
- Compatible with Arduino, ESP32, and other microcontrollers (supports 5V/3.3V logic).
- Integrations: Works with ESPHome (Home Assistant), Tasmota, and custom automation projects.
- Arduino control via RBDDimmer.h library for easy implementation.
- Energy-saving features – schedule operations and optimize power consumption.
- Electrical isolation for safe microcontroller operation.
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The 40A AC Dimmer is a DIY module—not a finished device—that integrates into your project by connecting to a microcontroller. Designed for high-power applications, it safely handles up to 40A, making it ideal for industrial and home automation projects requiring smooth regulation of heaters, powerful single-phase motors, pumps, and large ventilation systems.
High-Power Performance with Efficient Cooling
This dimmer is built for demanding loads, featuring a large heatsink and an active cooling fan to efficiently dissipate heat during operation. This ensures stable performance and extended lifespan, even under continuous heavy loads.
Versatile Automation & Control
With our comprehensive documentation and tutorials, you can fully customize your automation system. Possible applications include:
- Precise temperature control – Pair with temperature sensors to regulate heating elements.
- Industrial automation – Adjust motor speeds for pumps, compressors, or ventilation systems.
- Smart home integration – Connect to cloud platforms like Home Assistant or control remotely via ESPHome or Tasmota.
- Energy efficiency – Schedule operation times to optimize power consumption and reduce costs.
Seamless Microcontroller Integration
The dimmer’s design ensures complete isolation of the high-power AC section from the low-voltage control circuit, protecting your microcontroller. It supports 5V and 3.3V logic levels, making it compatible with Arduino, ESP32, and other platforms. The RBDDimmer.h library simplifies control by managing interrupts and timing, allowing precise load regulation without complex coding.
Whether you're automating an industrial system, optimizing home energy use, or developing a custom automation project, our detailed guides and technical support will help you every step of the way.