Elta 018-CH500-21 – 3TP CIRCULAR ELECTRIC HEATER WITH CONTROLS 500MM 21Kw 3PH

The Elta 018-CH500-21 – 3TP is a powerful circular electric heater designed for 500mm diameter ducting systems. With a 21kW heating capacity and 3‑phase power supply, it delivers high-performance air heating for demanding ventilation applications. The unit features a durable Aluzinc coated steel body for enhanced corrosion resistance. For operational safety and precision, it includes two integrated protection thermostats, a potentiometer for easy temperature adjustment, and screw terminals for simplified electrical connections. To ensure effective control, the heater is equipped with a differential pressure switch for airflow detection, a sensor to monitor minimum air velocity, and a supply air temperature sensor — guaranteeing consistent and safe performance in ventilation systems.