Short circuit proof PCB transformer, separating transformer
VB 3,2/2/18
Characteristics
General data
The PCB transformers of the VB series provide galvanic isolation of the primary circuit from the secondary circuit and are designed with a special construction to ensure absolute short-circuit safety. Additionally, they meet all requirements for supplying SELV (Safety Extra Low Voltage) circuits.
Benefits
› Separating transformer according to EN (IEC) 61558-2-1
› Minimal size with high performance
› With dual output coils for series or parallel connection
› Absolutely short-circuit proof
› Self-extinguishing encapsulation material
| Product | Short circuit proof PCB transformer, separating transformer |
| Order number | VB 3,2/2/18 |
| Series | VB |
| Power | 3.2 VA |
| Input | 230 V |
| Output | 2 x 18 V • 0.09 Aac |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| Short-Circuit Losses | 2.21 W |
| No-Load Losses | 0.25 W |
| Short circuit voltage uk | 35.1 % |
| EN Insulation class | B (130°C) |
| UL Insulation class | class 105 |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 56.5 % |
General
| Short circuit proof | inherently short-circuit proof |
| Switching group | Iii0 |
| Cooling type | AN |
Environment
| Ambient temperature | -20 °C to 50 °C / -4 °F to 122 °F |
| Max. installation height | 2,000 m / 6,562 ft |
Protection and Safety
| Protection type | IP00 |
| Protection class (prepared) | II |
| Overvoltage category | III |
| Degree of contamination | 1 |
Electrical Connections
| Input terminal | Pin |
| Output terminal | Pin |
Size and Weight
| Width | 35 mm / 1.38 in |
| Height | 30.8 mm / 1.21 in |
| Depth | 41 mm / 1.61 in |
| Weight | 0.175 kg / 0.386 lbs |
| Low Voltage Directive | EN 61558-2-1 |
| Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |
