Autotransformer
PVAT3 20 - Discontinued items – not for new applications
Characteristics
General data
The autotransformers of the PVAT3 series are used for voltage adjustment without the need for galvanic isolation and are manufactured according to EN (IEC) 61558-2-13. The transformers feature lower weight and a smaller form factor compared to other transformer types with separate windings.
Benefits
› Very high efficiency
› Excellent corrosion protection and low noise emission thanks to BLOCK IMPEX vacuum impregnation
› Short wiring time thanks to spring-loaded terminals
| Product | Autotransformer |
| Order number | PVAT3 20 |
| Series | PVAT3 |
| Power | 650 VA |
| Input | 3 x 690 V |
| Output | 3 x 400 V • 0.94 Aac |
| Phases | 3 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 37.4 W |
| No-Load Losses | 7.54 W |
| EN Insulation class | F (155°C) |
| UL Insulation class | class 155 |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 93.5 % |
General
| Short circuit proof | not short-circuit proof |
| Switching group | YNa0 |
| Cooling type | AN |
Environment
| Ambient temperature | -20 °C to 60 °C / -4 °F to 140 °F |
| Max. installation height | 2,000 m / 6,562 ft |
Protection and Safety
| Protection type | IP00 |
| Protection class (prepared) | I |
| Degree of contamination | 1 |
Electrical Connections
| Input terminal | Spring cage terminal |
| Output terminal | Stranded wire |
| Terminal PE | Spring cage terminal |
Size and Weight
| Width | 72 mm / 2.83 in |
| Height | 215 mm / 8.46 in |
| Depth | 170 mm / 6.69 in |
| Weight | 4.7 kg / 10.362 lbs |
| Low Voltage Directive | EN 61558-2-13 |
| Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |
