Step-up / step-down transformer
ST step-up & step-down transformers
AC voltage converting transformers. The catalogue describes converting several mains voltages into a general output voltage so that electronic equipment can be used safely within the rated power range.
12Catalogue models
100W – 10,000WCatalogue power range
25–26Catalogue pages
1989Goldsource founded
Historical catalogue record
What the catalogue says.
What to confirm.
- Product category
- Step-up / step-down transformer
- Series
- ST
- Catalogue models
- 12
- Source
- Catalogue PDF pages 25–26
- 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 200V or 220V or 240V
- Output voltage: AC 110V and 220V
- With fuse protector or with over-current protector
Catalogue values are historical reference information, not confirmed current specifications. Confirm the exact model, ratings, input range and certification status before ordering.
ST catalogue models.
| Model | Rated power | External package size | Net weight | Gross weight | Pieces per carton |
|---|---|---|---|---|---|
| ST-100 | 100W | 39.5 × 31.5 × 22.5 cm | 17.0 kg | 19.0 kg | 12 |
| ST-200 | 200W | 39.5 × 31.5 × 22.5 cm | 22.0 kg | 24.0 kg | 12 |
| ST-300 | 300W | 35.5 × 31.5 × 24.5 cm | 22.0 kg | 23.5 kg | 8 |
| ST-500 | 500W | 46.0 × 19.0 × 24.5 cm | 20.0 kg | 21.5 kg | 6 |
| ST-750 | 750W | 31.5 × 22.0 × 24.5 cm | 18.5 kg | 19.5 kg | 4 |
| ST-1000 | 1000W | 30.0 × 25.5 × 21.5 cm | 6.0 kg | 6.5 kg | 1 |
| ST-1500 | 1500W | 30.0 × 25.5 × 21.5 cm | 8.0 kg | 8.5 kg | 1 |
| ST-2000 | 2000W | 34.0 × 25.5 × 21.5 cm | 10.0 kg | 10.5 kg | 1 |
| ST-3000 | 3000W | 34.0 × 25.5 × 21.5 cm | 12.0 kg | 12.5 kg | 1 |
| ST-4000 | 4000W | 40.0 × 28.5 × 24.0 cm | 16.5 kg | 17.0 kg | 1 |
| ST-5000 | 5000W | 40.0 × 28.5 × 24.0 cm | 18.0 kg | 18.5 kg | 1 |
| ST-10000 | 10000W | 41.5 × 32.5 × 34.5 cm | 33.0 kg | 34.0 kg | 1 |
Sizes are external package sizes in cm; weights in kg; quantities are pieces per carton.
