The Elta 018-RH100/50 – 27-3TP is a high-performance rectangular electric heater designed for duct installation, measuring 1000mm by 500mm and offering a powerful 27kW output across a 3‑phase supply. Constructed from durable Aluzinc-coated steel, this heater is built to withstand demanding ventilation environments. It includes two protective thermostats to ensure safe operation and features screw terminals for straightforward electrical connections. Temperature control is achieved through an integrated potentiometer, while a differential pressure switch detects airflow. Additionally, a sensor monitors minimum air velocity, and a supply air temperature sensor is provided to ensure optimal performance and system protection.