250SV43B | Square D 0.25 kVA Buck and Boost Transformer 120×240VAC to 12/24VAC
Square D · Power Supplies & Transformers
Description The Square D 250SV43B is a 0.25 kVA single-phase buck and boost transformer designed for voltage correction in industrial and commercial electrical systems. It supports a 120 × 240 VAC primary with a 12/24 VAC secondary that can be interconnected for autotransformer operation. This dry-type transformer is housed in a NEMA 3R enclosure for indoor and outdoor installations. Technical Specifications Condition New/Never Used Surplus Brand Square D Category Power Distribution Part Number 250SV43B Subcategory Buck and Boost Transformers Product Type Buck and Boost Transformer Power Rating 0.25 kVA Phase Single-phase Primary Voltage 120 × 240 VAC Secondary Voltage 12 / 24 VAC Input Voltage 120 × 240 VAC Output Voltage 12 / 24 VAC Temperature Rating 80 °C Temperature Rise 80 °C Enclosure Type Dry type Enclosure Rating NEMA 3R Weight 9.7 lbs Information About 250SV43B The 250SV43B is a buck and boost transformer manufactured by Square D for flexible voltage adjustment applications. It is commonly used to compensate for over-voltage or under-voltage conditions by interconnecting the primary and secondary windings. The transformer features a dry-type design with an 80 °C temperature rise rating and is suitable for demanding electrical environments. Its NEMA 3R enclosure provides protection against rain, sleet, and external moisture exposure. Key Features: Buck and Boost Transformer Design: Allows voltage correction by stepping voltage up or down. Autotransformer Capability: Primary and secondary windings can be interconnected. 0.25 kVA Power Rating: Suitable for small load voltage adjustment applications. Dual Secondary Voltage Output: Provides 12 VAC or 24 VAC secondary options. Single-Phase Operation: Designed for standard single-phase electrical systems. NEMA 3R Enclosure: Rated for indoor and outdoor installations. Dry-Type Construction: Requires no liquid cooling or maintenance. The 250SV43B delivers the reliability and precision required for voltage correction and control in electrical distribution systems.
Brand: Square D · Category: Power Supplies & Transformers
Key features
- Buck and Boost Transformer Design: Allows voltage correction by stepping voltage up or down.
- Autotransformer Capability: Primary and secondary windings can be interconnected.
- 0.25 kVA Power Rating: Suitable for small load voltage adjustment applications.
- Dual Secondary Voltage Output: Provides 12 VAC or 24 VAC secondary options.
- Single-Phase Operation: Designed for standard single-phase electrical systems.
- NEMA 3R Enclosure: Rated for indoor and outdoor installations.
- Dry-Type Construction: Requires no liquid cooling or maintenance.
Specifications
| Manufacturer part number | 250SV43B |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Square D |
| Category | Power Distribution |
| Part Number | 250SV43B |
| Subcategory | Buck and Boost Transformers |
| Product Type | Buck and Boost Transformer |
| Power Rating | 0.25 kVA |
| Phase | Single-phase |
| Primary Voltage | 120 × 240 VAC |
| Secondary Voltage | 12 / 24 VAC |
| Input Voltage | 120 × 240 VAC |
| Output Voltage | 12 / 24 VAC |
| Temperature Rating | 80 °C |
| Temperature Rise | 80 °C |
| Enclosure Type | Dry type |
| Enclosure Rating | NEMA 3R |
| Weight | 9.7 lbs |
| Product type | Buck and Boost Transformers |
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