Control transformer
BUST 4000/4/23
Characteristics
Benefits
› Control transformer according to EN (IEC) 61558-2-2
› High power density through a compact design concept
› Primary side ±5% taps for voltage adjustment
› Very good inrush behavior due to reduced inrush currents
› Horizontal design
› Touch-protected connection terminals according to UVV BGV A3
| Product | Control transformer |
| Order number | BUST 4000/4/23 |
| Series | BUST |
| Power | 4,000 VA |
| Input | 380 V / 400 V / 420 V |
| Output | 2 x 115 V • 17.4 Aac |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 142 W |
| No-Load Losses | 52 W |
| Short-Term Power / instantaneous output | 11,000 VA |
| Short circuit voltage uk | 2.6 % |
| EN Insulation class | B (130°C) |
| UL Insulation class | class 130 |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 95.4 % |
General
| Short circuit proof | not short-circuit proof |
| Switching group | Iii0 |
| 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 |
| Overvoltage category | III |
| Degree of contamination | 1 |
Electrical Connections
| Input terminal | Screw terminal |
| Output terminal | Screw terminal |
| Terminal PE | Screw terminal |
Size and Weight
| Width | 325 mm / 12.8 in |
| Height | 175 mm / 6.89 in |
| Depth | 240 mm / 9.45 in |
| Weight | 37 kg / 81.571 lbs |
| Low Voltage Directive |
EN 61558-2-2 EN 61558-2-4 |
| Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |
