Autotransformer, three-phase
AT3 3,5-20/21-4
Characteristics
Benefits
› Autotransformer according to EN (IEC) 61558-2-13
› Reverse operation possible
› Very high efficiency
› Patented mounting technology to reduce heat losses
› Excellent corrosion protection and low noise emission thanks to BLOCK IMPEX vacuum impregnation
› Fixed, touch-protected screw terminal connections according to UVV BGV A3
Product | Autotransformer, three-phase |
Order number | AT3 3,5-20/21-4 |
Series | AT3 |
Power | 3,500 VA |
Input | 3 x 200 V / 208 V |
Output | 3 x 400 V • 5.1 Aac |
Phases | 3 |
Frequency range | 50 Hz to 60 Hz |
Short-Circuit Losses | 103 W |
No-Load Losses | 38 W |
EN Insulation class | F (155°C) |
UL Insulation class | class 155 |
Duty Cycle | 100 % |
Wire material | Copper |
Efficiency | 96.1 % |
General
Short circuit proof | not short-circuit proof |
Switching group | YNa0 |
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 |
Degree of contamination | 1 |
Electrical Connections
Input terminal | Screw terminal |
Output terminal | Screw terminal |
Terminal PE | Screw terminal |
Size and Weight
Width | 267 mm / 10.51 in |
Height | 220 mm / 8.66 in |
Depth | 150 mm / 5.91 in |
Weight | 20 kg / 44.092 lbs |
Low Voltage Directive | EN 61558-2-13 |
Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |