Step-up / step-down transformer
THG step-up & step-down transformers
Step-up / step-down AC converters designed for equipment whose rated voltage differs from the local mains voltage, safe for use within the rated voltage range.
12Catalogue models
100W – 10,000WCatalogue power range
33–34Catalogue pages
1989Goldsource founded
Historical catalogue record
What the catalogue says.
What to confirm.
- Product category
- Step-up / step-down transformer
- Series
- THG
- Catalogue models
- 12
- Source
- Catalogue PDF pages 33–34
- Source
- Company website archive (2014)
- Source
- DIYTrade listing (2025)
- Current specifications & availability
- Confirm by enquiry
Features as printed in the catalogue
- Input voltage: AC 110V or 220V 50Hz / 60Hz
- Output voltage: AC 220V or 110V 50Hz / 60Hz
- With fuse protector
- Built-in AC 110V / 220V voltage selector switch
Catalogue values are historical reference information, not confirmed current specifications. Confirm the exact model, ratings, input range and certification status before ordering.
THG catalogue models.
| Model | Rated power | External package size | Net weight | Gross weight | Pieces per carton |
|---|---|---|---|---|---|
| THG-100 | 100W | 46.0 × 26.5 × 17.0 cm | 17.5 kg | 19.5 kg | 16 |
| THG-200 | 200W | 46.0 × 29.5 × 17.0 cm | 25.0 kg | 27.0 kg | 16 |
| THG-300 | 300W | 33.5 × 27.5 × 20.0 cm | 19.0 kg | 20.5 kg | 8 |
| THG-500 | 500W | 33.5 × 27.5 × 20.0 cm | 23.5 kg | 25.0 kg | 8 |
| THG-750 | 750W | 43.0 × 21.0 × 20.0 cm | 26.0 kg | 27.0 kg | 6 |
| THG-1000 | 1000W | 46.0 × 24.5 × 22.0 cm | 13.5 kg | 15.0 kg | 2 |
| THG-1500 | 1500W | 46.0 × 25.5 × 22.0 cm | 16.5 kg | 18.0 kg | 2 |
| THG-2000 | 2000W | 46.0 × 27.5 × 22.0 cm | 22.0 kg | 23.5 kg | 2 |
| THG-3000 | 3000W | 46.0 × 29.5 × 22.0 cm | 27.0 kg | 28.5 kg | 2 |
| THG-4000 | 4000W | 31.5 × 23.5 × 27.0 cm | 20.0 kg | 21.0 kg | 1 |
| THG-5000 | 5000W | 32.5 × 23.5 × 27.0 cm | 22.0 kg | 23.0 kg | 1 |
| THG-10000 | 10000W | 41.5 × 32.5 × 34.5 cm | 32.0 kg | 33.0 kg | 1 |
Sizes are external package sizes in cm; weights in kg; quantities are pieces per carton.








