Variable transformer
ESS 102
Characteristics
General data
Adjustable ring-core autotransformers of the ESS series are designed for low-loss generation of grid-connected AC voltages. This principle ensures optimal adaptation to the load, resulting in minimal power loss. The design of the current collector ensures continuous reliable contact
Benefits
› Continuous adjustment of alternating voltage from zero to the maximum value
› Self-cleaning of exposed contact tracks
› 4-point flange mounting
› Principle applicable to three-phase current by mechanically coupling three variable transformers
› Knobs and scales optionally available
| Product | Variable transformer |
| Order number | ESS 102 |
| Series | ESS |
| Power | 500 VA |
| Phases | 1 |
| Frequency range | 50 Hz to 60 Hz |
| EN Insulation class | B (130°C) |
| Duty Cycle | 100 % |
| Wire material | Copper |
General
| Short circuit proof | not short-circuit proof |
| Switching group | Ia0 |
| Cooling type | AN |
Environment
| Ambient temperature | -20 °C to 45 °C / -4 °F to 113 °F |
| Max. installation height | 2,000 m / 6,562 ft |
Protection and Safety
| Protection type | IP00 |
| Protection class (prepared) | I |
| Degree of contamination | 1 |
Electrical Connections
| Input terminal | Screw terminal |
| Output terminal | Screw terminal |
Size and Weight
| Width | 116 mm / 4.57 in |
| Height | 125 mm / 4.92 in |
| Depth | 137 mm / 5.39 in |
| Weight | 2.493 kg / 5.496 lbs |
| Low Voltage Directive | EN 61558-2-13 |
| RoHS compliant | EN IEC 63000 |
