Control- and isolating transformer
TT1 25-4-23
Characteristics
Benefits
› Safe galvanic isolation
› Patented assembly technology
› Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
› Primary side ±5 % tappings for voltage adjustment
› Fixed, contact protected screw connection terminals complying with UVV BGV A3
› Multifunctional fixing rail with 8 oval slots
› Space saving, thanks to horizontal design
› Integrated crane eyes
› Non-slip terminals
| Product | Control- and isolating transformer |
| Order number | TT1 25-4-23 |
| Power | 25,000 VA |
| Input | 380 V / 400 V / 420 V |
| Output | 2 x 115 V • 109 Aac |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 247 W |
| No-Load Losses | 197 W |
| Short-Term Power / instantaneous output | 133,000 VA |
| Short circuit voltage uk | 0.9 % |
| EN insulation class | F (155°C) |
| UL Insulation class | class 155 |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 98.3 % |
General
| Short circuit proof | not short-circuit proof |
| Switching group | Iii0 |
| 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 | 320 mm / 12.6 in |
| Height | 490 mm / 19.29 in |
| Depth | 310 mm / 12.2 in |
| Weight | 153 kg / 337.31 lbs |
| Low Voltage Directive |
EN 61558-2-2 EN 61558-2-4 |
| Approval cURus - Recognized | UL 1561; CSA 22.2 |
