The Elta 018-CH355-15 – 3TP is a powerful circular electric heater designed for 355mm duct systems, providing 15 kW heating capacity on a three-phase electrical supply. Constructed with durable Aluzinc coated steel, it ensures reliable and long-lasting operation. This heater includes two protection thermostats to maintain safe operation and screw terminals for straightforward electrical connections. Temperature adjustments are facilitated by an integrated potentiometer. For efficient and safe heating, the heater features a differential pressure switch to monitor airflow, a sensor to detect minimum air velocity, and a supply air temperature sensor, ensuring optimal performance even under variable airflow conditions.