AC Dimmer Module 40A, AC 600V-40A

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.

• HIGH POWER AC DIMMING – Smoothly control up to 40A resistive and inductive AC loads including heaters, single-phase motors, pumps, and ventilation systems. True phase-angle control provides precise voltage regulation, not just on/off switching.
• ARDUINO & ESP32 COMPATIBLE – Supports both 3.3V and 5V logic levels. Works with Arduino, ESP32, STM32, Raspberry Pi, and other popular microcontrollers. Ready-to-use rbdimmerESP32 library simplifies integration with example code and documentation.
• SMART HOME READY – Direct integration with ESPHome, Tasmota, and Home Assistant. Build custom automation for temperature control, energy management, and scheduled operations through your preferred smart home platform.
• EFFICIENT COOLING SYSTEM – Large aluminum heatsink with active cooling fan ensures stable operation under heavy continuous loads. Variants with temperature sensor enable intelligent fan speed control based on real-time thermal monitoring.
• SAFE ELECTRICAL ISOLATION – Complete galvanic isolation between high-voltage AC section and low-voltage control circuit protects your microcontroller. Zero-cross detection ensures reliable and quiet operation with minimized electrical noise.