Isolating transformer
STT 400 - Discontinued items - no longer available
Characteristics
Benefits
› Good attenuation against radio frequency interference and pulses
› Low magnetic leakage field
› Integrated short circuit and overload protection
› Very good moisture protection and low noise thanks to resin encapsulation
› High degree of protection
› Carrying handle, mains connecting lead and socket for mobile use
| Product | Isolating transformer |
| Order number | STT 400 |
| Power | 400 VA |
| Input | 2 x 0 V |
| Output | 2 x 0 V • 0 Aac |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| EN insulation class | A (105°C) |
| Duty Cycle | 100 % |
| Wire material | Copper |
| Efficiency | 92 % |
General
| Short circuit proof | conditionally short-circuit proof |
| Switching group | Ii0 |
| 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 44 |
| Protection class (prepared) | II |
Electrical Connections
| Terminal Pri | Protective contact plug |
| Terminal Sec | Protective contact socket |
| Terminal PE | Protective contact plug |
Size and Weight
| Width | 120 mm / 4.72 in |
| Height | 175 mm / 6.89 in |
| Depth | 300 mm / 11.81 in |
| Weight | 13.08 kg / 28.84 lbs |
| Low Voltage Directive | EN 61558-2-4 |
