Isolating transformer, three-phase
TT3-A025-4040-0
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-A025-4040-0 |
| Series | TT3-A |
| Power | 25,000 VA |
| Input | 3 x 400 V |
| Output | 3 x 400 V • 36.1 Aac |
| Phases | 3 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 985 W |
| No-Load Losses | 455 W |
| Short circuit voltage uk | 3.2 % |
| EN insulation class | F (155°C) |
| UL Insulation class | class 180 |
| Duty Cycle | 100 % |
| Wire material | Aluminum |
| Efficiency | 94.6 % |
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 | Screw terminal |
| Output terminal | Screw terminal |
| Terminal PE | Screw terminal |
Size and Weight
| Width | 552 mm / 21.73 in |
| Height | 460 mm / 18.11 in |
| Depth | 300 mm / 11.81 in |
| Weight | 156 kg / 343.921 lbs |
| Low Voltage Directive | EN 61558-2-4 |
| Approval cURus - Recognized | UL 1561; CSA 22.2 |
