5-stage transformer for speed adjustment. For controlling three-phase fans. With operating indicator light.Article: TR 2.5-2, Voltage type: three-phase current, Rated voltage: 400 V, Mains frequency: 50 Hz / 60 Hz, Rated power: 1250 W, Maximum load: 2.5 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: 10.071 kg, Weight with packaging: 10.976 kg, Width: 310 mm, Height: 228 mm, Depth: 225 mm, Width with packaging: 340 mm, Height with packaging: 255 mm, Depth with packaging: 265 mm, Ambient temperature: 0 °C to 40 °C, Suitable for box fans: no, Suitable for roof fans: yes, Suitable for Duct fan: yes, Suitable for heat recovery systems: no, Suitable for wall-mounted fans: no, Suitable for wall-mounted fans: yes, Suitable for residential fans: no, Suitable for centrifugal fans: no, Suitable for circulation fans: no
| Property | Value |
| Designed as a safety transformer: | no |
| Designed as an economy transformer: | no |
| Designed as an isolation transformer: | no |
| Width: | 310 mm |
| Height: | 228 mm |
| Primary voltage 1: | 0 to 400 V |
| Secondary voltage 1: | 0 to 105 V |
| Secondary voltage 2: | 0 to 150 V |
| Secondary voltage 3: | 0 to 190 V |
| Secondary voltage 4: | 0 to 250 V |
| Secondary voltage 5: | 0 to 400 V |
| Depth: | 225 mm |
| Protection class (IP): | IP54 |
