Systemair RBK 55/33 400V/3 Duct heater

Duct heater for square ducts. Casing of alu-zink coated sheet metal with heating elements in stainless steel. The heater has built-in overheating protection with manual reset. Heat control by means of a controller TTC together with a TT-Slave (TT-S1) or TTC together with a TT-M Slave. Min.airflow is based on a min.air velocity of 1,5 m/s. The duct heater is dimensioned for a maximum outgoing temp. of 40°C.