5-stage transformer for speed adjustment. For controlling three-phase fans. With operating indicator light. Article: TR 0.8-2, Voltage type: three-phase, Rated voltage: 400 V, Mains frequency: 50 Hz / 60 Hz, Rated power: 400 W, Maximum load: 0.8 A, Protection class: IP 54, Secondary voltage: 105 V / 150 V / 190 V / 250 V / 400 V, Installation type: Surface-mounted, Housing material: Plastic, Color: light gray, similar to RAL 7035, Weight: 5.1 kg, Weight with packaging: 6.29 kg, Width: 248 mm, Height: 195 mm, Depth: 205 mm, Width with packaging: 260 mm, Height with packaging: 340 mm, Depth with packaging: 260 mm, Ambient temperature: 0 °C to 40 °C