5-stage transformer for speed adjustment. For controlling three-phase fans. With base bracket and connection terminals. With top hat rail mounting for built-in transformers < 3 kg. Accessories: 5-stage switch DSS 20.Article: TR 2.5 S-2, Voltage type: three-phase current, Rated voltage: 400 V, Mains frequency: 50 Hz / 60 Hz, Rated power: 450 W, Maximum load: 2.5 A, Protection class: IP 00, Secondary voltage: 105 V / 150 V / 190 V / 250 V / 400 V, Installation type: Control cabinet, Weight: 8.1 kg, Weight with packaging: 10.04 kg, Width: 120 mm, Height: 90 mm, Depth: 120 mm, Width with packaging: 260 mm, Height with packaging: 340 mm, Depth with packaging: 270 mm, Ambient temperature: 0 °C to 40 °C