Carel DN33V9MR20 Universal Controller: Reliable DIN-Rail Control For Modern HVAC Systems

The Carel DN33V9MR20 is a compact universal electronic controller designed for DIN‑rail mounting in professional HVAC and refrigeration panels. It offers a wide low‑voltage power‑supply range, two analogue and two digital inputs, and a robust relay output with buzzer and infrared receiver, delivering reliable temperature management in demanding applications.