Electric air heater for ventilation systems. With non-glowing tubular heaters made of stainless steel. Operate with temperature controller DTL (see accessories). Increased risk of fire if tubular heaters are dirty. Install air filter TFE as a preventive measure. Recommended accessories: Duct sensor FL or room sensor FR, air flow monitor LW 9, contactor US 16 T and air filter TFE... . Safety instructions: Increased risk of fire if tubular heaters are dirty. Install air filter TFE as a preventive measure. Designed in accordance with VDE, Equipment and Product Safety Act and the relevant EU directives. With 2 independently switching temperature limiters. Minimum distance to flammable materials: 150 mm (if this is not met, install suitable insulation). Article: DRH 25-6, Voltage type: three-phase current, Rated voltage: 400 V, Mains frequency: 50 Hz, IMax: 15 A, Protection class: IP 43, Mains cable: 5 / 1.5 mm2, Installation: inside, Installation position: horizontal / vertical, Housing material: Sheet steel, galvanized, Weight: 5.05 kg, Weight with packaging: 5.59 kg, Nominal width: 250 mm, Width: 250 mm, Height: 331 mm, Depth: 375 mm, Width with packaging: 320 mm, Height with packaging: 285 mm, Depth with packaging: 395 mm, Air heater type: electric, Heating output: 6000 W