Professional-Grade AC Dimmer Module for DIY Automation Projects
The RBDimmer 40A AC Dimmer Module is a high-power solution designed for makers, engineers, and automation enthusiasts who need precise control over demanding AC loads. This is a DIY module – not a finished device – that connects to your microcontroller to enable smooth voltage regulation for heaters, motors, pumps, and industrial ventilation systems.
Three Versions to Match Your Project Requirements:
- Standard Version – Core dimming functionality with large heatsink, active cooling fan, and full microcontroller compatibility. Perfect for basic high-power dimming applications.
- Temperature Sensor Version – Adds integrated TRIAC temperature monitoring with intelligent fan control. The system automatically adjusts cooling fan speed based on thermal conditions – reducing noise and energy consumption during light loads while providing maximum cooling when needed. Built-in thermal protection alerts you before critical temperatures are reached.
- Current Sensor Version – The complete solution featuring both temperature monitoring and high-precision current sensing. Track real-time power consumption, log energy usage over time, calculate costs in your currency, and set current limits to prevent overloads. Ideal for energy management projects and industrial monitoring applications.
Built for Reliability
Every module features complete electrical isolation between the high-voltage AC section and your control electronics. The proven TRIAC design with zero-cross detection ensures quiet, reliable operation. Comprehensive documentation, Arduino libraries, and active community support help you get started quickly.
What's Included: AC Dimmer Module 40A (selected variant), connection diagram, access to online documentation and example projects.