5 kVA Control Transformer, Single Phase, 380V to 230/120V

Feature

• Winding Materials Options: The choice between enameled copper wire and aluminum wire allows users to balance thermal performance with procurement cost without compromising rated capacity.
• Dry-Type Air-Cooled Construction: With no insulating oil or liquid coolant, this dry-type transformer is cleaner, safer, and easier to maintain in enclosed machine tool cabinets and indoor control panels.
• Industrial Control Applications: The 5000VA rating provides ample headroom for large machine platforms with multiple simultaneous control loads.
• Customizable Voltage Configuration: In addition to the standard 380V-to-230V/120V setup, both primary and secondary voltages can be specified to non-standard values at the time of order.

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2. Premium Wiring Terminals: Crafted from high-quality terminals with screw fastening that resists damage. Featuring excellent temperature resistance, voltage resistance, and flame retardancy to ensure efficient and stable equipment operation.
3. All-Copper Coil: Wrapped tightly in flame-retardant material for long-lasting durability. The high-temperature resistant enameled wire delivers stable performance and efficient transmission, making it suitable for harsh environments.
4. Cold-Rolled Silicon Steel Sheets: Made from carefully selected materials with low core loss characteristics, effectively reducing energy losses during transformer operation.

Control Transformer Schematic Diagram Illustration

Control Transformer Dimension

Application

Production Lighting

CNC Machine Tools

Factory Machinery

Traffic Signal Power Supply

Q1: What is the practical advantage of Class H insulation at the 5kVA capacity level?

At higher VA ratings, transformers generate more heat under full continuous load, and sustained high temperatures are the primary cause of insulation degradation and premature failure. Class H insulation is rated for higher continuous operating temperatures compared to Class B or Class F alternatives, meaning the 5kVA transformer maintains dielectric integrity and mechanical stability even during extended heavy-duty operation. For industrial facilities that run multiple production shifts or continuous automated processes, the Class H rating directly translates into fewer unplanned maintenance events, a longer service life, and a lower total cost of ownership over the transformer's operational lifespan.

Q2: When ordering a custom voltage configuration, what information should I provide?

When placing an order for a custom-configured 5000VA control transformer, you should confirm the following at the time of order: the required primary (input) voltage, the required secondary (output) voltage or voltages, the target operating frequency (50Hz or 60Hz), and your preferred winding material (enameled copper wire or aluminum wire). The standard model's 380V primary and 230V/120V secondary outputs serve as the baseline, and any deviation from these — whether a different input voltage, alternative secondary taps, or a single-output secondary — should be clearly specified to ensure the transformer is wound and tested to your exact application requirements before shipment.