Key Features
- Galvanic Isolation: Fully isolates primary and secondary windings to block ground faults and surges
- Low Distortion Output: Tight winding tolerances and electrostatic shielding minimize waveform distortion and noise
- High Thermal Insulation: Class F insulation (155 °C hot-spot) standard, with optional Class H (180 °C) materials for extreme-duty applications
- Heavy-Duty Overload: Can sustain 150% of rated load for 60 seconds and 200% for 30 seconds without damage
- Quiet, Rugged Design: Laminated core and low-loss construction keep audible hum and vibrations low, extending service life.
- Flexible Configuration: Available in multiple voltages, tap settings and enclosures; compliant with CE/UL/IEC safety standards for easy integration.
Technical Specifications
| Parameter | Specification |
| Phase | Single-phase (1ϕ) |
| Capacity Range | 0.5–30 kVA (various models) |
| Input Voltage | 220 / 230 / 240 VAC (±10%) |
| Output Voltage | 115 / 120 / 230 / 240 VAC (selectable) |
| Voltage Accuracy | ±5% (at full load) |
| Voltage Regulation | ±5–6% (no-load to full-load) |
| Waveform Distortion | <1% total harmonic distortion |
| Insulation Class | Class F (155 °C) standard; optional Class H (180 °C) |
| Frequency | 50/60 Hz |
| Overload Capacity | 150% rated current for 60s; 200% for 30s |
| Insulation Resistance | >100 MΩ (500 V DC) |
| Dielectric Strength | 2× rated voltage, 60 seconds (primary–secondary) |
| Design Life | ≥20 years (typical in normal use) |
| Operating Temperature | 0 °C to +40 °C (ambient) |
| Relative Humidity | 0–95% (non-condensing) |
| Applicable Standards | IEC 60076-11, UL 5085-3, CE mark, RoHS |
Material Summary
Core: Cold-rolled silicon-steel laminations (low-loss core material).
Winding: Copper conductors with Class-F insulation (often triple-insulated enamel).
Insulation: High-temp epoxy and varnish system rated Class F (155 °C), optional Class H (180 °C).
Terminals: Heavy-duty screw or clamp connectors for secure input/output connections.
Housing: Rugged steel enclosure (ventilated or sealed, with optional IP rating) for industrial environments.





