Isolating transformer, three-phase
TT3-A400-4040-0
Characteristics
Benefits
› Safe galvanic isolation
› Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
› Very good discharging of thermal losses by means of optimally arranged cooling channels within the coils
› Integrated crane eyes
› If desired, the transformers can be realised in individual voltages
| Product | Isolating transformer, three-phase |
| Order number | TT3-A400-4040-0 |
| Power | 400,000 VA |
| Input | 3 x 400 V |
| Output | 3 x 400 V • 577 Aac |
| Phases | 3 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 7812 W |
| No-Load Losses | 1249 W |
| Short circuit voltage uk | 4.1 % |
| EN insulation class | F (155°C) |
| UL Insulation class | class 180 |
| Duty Cycle | 100 % |
| Wire material | Aluminum |
| Efficiency | 97.8 % |
General
| Short circuit proof | not short-circuit proof |
| Switching group | Dyn5 |
| Cooling type | AN |
Environment
| Ambient temperature | -20 °C to 40 °C / -4 °F to 104 °F |
| Max. installation height | 2,000 m / 6,562 ft |
Protection and Safety
| Protection type | IP 00 |
| Protection class (prepared) | I |
| Overvoltage category | III |
| Degree of contamination | 2 |
Electrical Connections
| Input terminal | Flat copper connection |
| Output terminal | Flat copper connection |
| Terminal PE | Bolt connection |
Size and Weight
| Width | 1075 mm / 42.32 in |
| Height | 1100 mm / 43.31 in |
| Depth | 580 mm / 22.83 in |
| Weight | 1075 kg / 2369.97 lbs |
| Low Voltage Directive | EN 61558-2-4 |
| Approval cURus - Recognized | UL 1561; CSA 22.2 |
