Autotransformer
VT 300-EN
Characteristics
General data
The autotransformers of the VT-EN series are used for voltage adjustment without the need for galvanic isolation. The transformers feature lower weight and a smaller form factor compared to other transformer types with separate windings and can be easily mounted using robust metal base brackets with elongated holes.
Benefits
› Autotransformer according to EN (IEC) 61558-2-13
› Very high efficiency
› Excellent moisture protection and low noise emission thanks to BLOCK IMPEX vacuum impregnation
› Touch-protected connection terminals according to UVV BGV A3
| Product | Autotransformer |
| Order number | VT 300-EN |
| Series | VT-EN |
| Power | 3,000 VA |
| Input | 110 V / 125 V / 230 V / 240 V |
| Output |
110 V • 27.3 Aac oder 125 V • 24 Aac oder 230 V • 13 Aac oder 240 V • 12.5 Aac |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 62.75 W |
| No-Load Losses | 31 W |
| EN Insulation class | B (130°C) |
| UL Insulation class | class 130 |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 97 % |
General
| Short circuit proof | not short-circuit proof |
| Switching group | Ia0 |
| 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 | IP00 |
| Protection class (prepared) | I |
Electrical Connections
| Input terminal | Screw terminal |
| Output terminal | Screw terminal |
| Terminal PE | Flat plug connection |
Size and Weight
| Width | 174 mm / 6.85 in |
| Height | 148 mm / 5.83 in |
| Depth | 168 mm / 6.61 in |
| Weight | 21.1 kg / 46.517 lbs |
| Low Voltage Directive | EN 61558-2-13 |
| Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |
