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3 kVA | 120 × 240 VAC Primary | 16/32 VAC Secondary | NEMA Type 3R
The SolaHD HS20F3A is a 3 kVA single phase dry-type transformer designed for buck-boost voltage correction, low-voltage lighting, control panels and other applications requiring a small increase or decrease in supply voltage.
This model has a 120 × 240 VAC dual-voltage primary and a 16/32 VAC dual-voltage secondary operating at 60 Hz. It uses encapsulated construction in a compact enclosure suitable for indoor or outdoor service.
| Wallco Product Code | HS20F3A |
| Data Sheet Catalog Number | HS20F3A |
| Product Family | Buck-Boost Transformers |
| Power Rating | 3 kVA |
| Phase | Single Phase |
| Primary Voltage | 120 × 240 VAC |
| Secondary Voltage | 16/32 VAC |
| Frequency | 60 Hz |
| Construction | Encapsulated |
| Installation | Wall Mount |
| Dimensions | 12.00 H × 10.00 W × 7.00 D inches |
| Approximate Shipping Weight | 55.0 lb. |
| Maximum Secondary Amperage | 187.5 A at 16 V; 93.7 A at 32 V |
| Design Style | Style 4 |
| Electrical Connection | Connection 2 |
SolaHD buck-boost transformers are shipped as insulating/isolating transformers with dual-voltage primary and secondary windings. When field connected as an autotransformer, they can efficiently raise or lower supply voltage by a small amount, typically 5% to 27%.
Confirm the measured input voltage, required load voltage, load kVA or amperage, frequency and phase before ordering. Three-phase buck-boost applications require two or three transformers. See the Manufacturer's Data Sheet tab for selection tables, fuse sizing and electrical connection diagrams.
