The Elta 018-CH315-12 – 3TP is a high-capacity circular electric heater designed for 315mm duct systems, providing 12 kW of heating power on a three-phase electrical supply. Built with durable Aluzinc coated steel, this heater is engineered for long-lasting performance. It includes two protection thermostats for safety and screw terminals for easy and reliable electrical connections. Temperature control is made simple through an integrated potentiometer. The heater is equipped with a differential pressure switch for airflow monitoring, a sensor to detect minimum air velocity, and a supply air temperature sensor to ensure efficient and safe heating operation under varying airflow conditions.