TT3 25-69-4
Isolating transformer TT3
Rated input voltage
3 x 690 Vac
Rated output voltage
3 x 400 Vac
Power
25,000 VA
| Version | Rated input voltage | Rated output voltage | Power | |
|---|---|---|---|---|
| TT3 1-4-4 | 3 x 400 Vac | 3 x 400 Vac | 1,000 VA | |
| TT3 2,5-4-4 | 3 x 400 Vac | 3 x 400 Vac | 2,500 VA | |
| TT3 2,5-69-4 | 3 x 690 Vac | 3 x 400 Vac | 2,500 VA | |
| TT3 5-4-4 | 3 x 400 Vac | 3 x 400 Vac | 5,000 VA | |
| TT3 6,3-4-4 | 3 x 400 Vac | 3 x 400 Vac | 6,300 VA | |
| TT3 8-4-4 | 3 x 400 Vac | 3 x 400 Vac | 8,000 VA | |
| TT3 10-4-4 | 3 x 400 Vac | 3 x 400 Vac | 10,000 VA | |
| TT3 10-69-4 | 3 x 690 Vac | 3 x 400 Vac | 10,000 VA | |
| TT3 12,5-4-4 | 3 x 400 Vac | 3 x 400 Vac | 12,500 VA | |
| TT3 16-4-4 | 3 x 400 Vac | 3 x 400 Vac | 16,000 VA | |
| TT3 20-4-4 | 3 x 400 Vac | 3 x 400 Vac | 20,000 VA | |
| TT3 20-69-4 | 3 x 690 Vac | 3 x 400 Vac | 20,000 VA | |
| TT3 25-4-4 | 3 x 400 Vac | 3 x 400 Vac | 25,000 VA | |
| TT3 25-69-4 | 3 x 690 Vac | 3 x 400 Vac | 25,000 VA | |
| TT3 30-4-4 | 3 x 400 Vac | 3 x 400 Vac | 30,000 VA |
Technical Data for TT3 25-69-4
| Input | |
|---|---|
| Rated input voltage | 3 x 690 Vac |
| Rated frequency | 50 - 60 Hz |
| Output | |
|---|---|
| Rated output voltage | 3 x 400 Vac |
| Tappings Output (±) | ±5 % |
| Power | 25,000 VA |
| Rated current | 3 x 38.1 Aac (3 x 380 Vac) 3 x 36.1 Aac (3 x 400 Vac) 3 x 34.4 Aac (3 x 420 Vac) |
| Power loss | 624 W |
| Short circuit voltage | 1.2 % |
| Vector group | Dyn 5 |
| Efficiency | 97.5 % |
| Approvals | |
|---|---|
| Approvals | - |
| Environment | |
|---|---|
| Ambient temperature max. | 122.0 °F |
| Safety and protection | |
|---|---|
| Insulation class | F (311 °F) |
| Protection index | IP 00 |
| Safety class (prepared) | I |
| Type | Open type |
| Short circuit strength | non-short-circuit proof |
| Terminal and mounting | |
|---|---|
| Fixing method | Fixing rail |
| Fixing screws | M12 |
| Terminals Input | Screw clamp, 10 mm² |
| Terminals Output | Screw clamp, 10 mm² |
| Connection type | Screw-type terminal, 4 mm² |
| Measures and weights | |
|---|---|
| Width | 21.65 inch |
| Height | 20.08 inch |
| Depth | 11.81 inch |
| Core type | 3UI 240/140 |
| Weight | 480.61 lbs |
Information for TT3 series
General Data
- Rated input voltage 3 x 400 Vac, 3 x 690 Vac
- Rated output voltage 3 x 400 Vac
- Rated power 1,000 - 30,000 VA
- Insulation class F
- Maximum ambient temperature 122 °F / 50 °C
- Efficiency up to 97.5 %
- Degree of protection IP 00 or IP 23
- Optionally adapted package for higher degrees of protection
Benefits
- Very good corrosion protection and low noise due to BLOCK IMPEX vacuum impregnation
- Enlarged mounting bracket for easy installation from above
- Integrated crane eyes
- Patented assembly technology to lower heat losses
- Multi-functional mounting brackets with 12 slots
- Secondary side ±5 % taps for voltage adjustment
- Fixed, contact protected screw connection terminals complying with UVV BGV A3
- Safe galvanic isolation