AC voltage regulator
ST-500W4
AC voltage regulator. Explore the supplied catalogue record and request the current configuration, documentation and quotation for this model.
Reconstructed exterior
Every side,
square on.
Illustrative renders reconstructed from catalogue photographs; dimensions are estimated. Appearance and configuration may vary by version.
Interactive exterior
ST-500W4,
in the round.
Illustrative exterior model reconstructed from catalogue photographs. Appearance and configuration may vary by version.
Drag to rotate · Scroll to zoom
Illustrative exterior model. Appearance and configuration may vary by version; check against the current product specification.
Historical catalogue record
What the catalogue says.
What to confirm.
- Model
- ST-500W4
- Series
- ST-W4
- Product category
- AC voltage regulator
- Rated power
- 500W
- External package size
- 47.5 × 43.5 × 19.0 cm
- Net weight
- 14.5 kg
- Gross weight
- 15.5 kg
- Pieces per carton
- 4
- Source
- Catalogue PDF pages 7–8
- Source
- Company website archive (2014)
- Source
- DIYTrade listing (2025)
- Current specifications & availability
- Confirm by enquiry
Features as printed in the catalogue
- Input voltage: AC 50–130V or 160–250V
- Output voltage: AC 220V / 110V ±4%
- With over-current protector
- With output voltage indication
- With 110V / 220V input 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Catalogue values are historical reference information, not confirmed current specifications.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.
