Isolating transformer, three-phase
TT3 2,5-4-4
Characteristics
Benefits
› Safe galvanic isolation
› Patented assembly technology to lower heat losses
› Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
› Secondary side ±5 % tappings for voltage adjustment
› Fixed, contact protected screw connection terminals complying with UVV BGV A3
› Multifunctional fixing rails with 12 oval slots
› Enlarged fixing rail for easy installation from above
› Integrated crane eyes
Product | Isolating transformer, three-phase |
Order number | TT3 2,5-4-4 |
Power | 2,500 VA |
Input | 3 x 400 V |
Output |
3 x 380 V • 3.8 Aac or 400 V • 3.7 Aac or 420 V • 3.5 Aac |
Phases | 3 |
Frequency range | 50 Hz to 60 Hz |
Short-Circuit Losses | 98 W |
No-Load Losses | 55 W |
Short circuit voltage uk | 3.7 % |
EN insulation class | F (155°C) |
UL Insulation class | class 155 |
Duty Cycle | 100 % |
Wire material | Copper |
Efficiency | 94.2 % |
General
Short circuit proof | not short-circuit proof |
Switching group | Dyn5 |
Cooling type | AN |
Environment
Ambient temperature | -20 °C to 50 °C / -4 °F to 122 °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 | 1 |
Electrical Connections
Input terminal | Screw terminal |
Output terminal | Screw terminal |
Terminal PE | Screw plug-in connection |
Size and Weight
Width | 315 mm / 12.4 in |
Height | 250 mm / 9.84 in |
Depth | 165 mm / 6.5 in |
Weight | 30 kg / 66.14 lbs |
Low Voltage Directive | EN 61558-2-4 |
Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |