Best 30 Kva Transformer 480 to 240: High-Power Step-Down Solutions for Industrial Needs
Choosing the right 30 kVA transformer to step down from 480 V to 240 V involves evaluating voltage options, phase configuration, insulation, and efficiency. The following selections cover dry-type and auto transformer designs suitable for industrial equipment, control panels, and large machinery. Each entry includes key features and direct links to reliable Amazon listings for quick comparison.
| Product | Brand | Voltage/VA | Notes |
|---|---|---|---|
| Industrial Control Transformer .050 kVA (240×480 Primary, 120×240 Secondary) | Hubbell Acme Electric (HUBDX) | 50–5000 VA; 240×480 primary, 120×240 secondary | Epoxy encapsulated; high-silicon steel laminations for efficiency |
| 30 KVA 3-Phase Auto Transformer (600,480,400,240,208V) | American Rotary | 30 kVA; multi-tap; 600/480/400/240/208 V | Type 3R enclosure; flexible input/output taps |
| Industrial Control Transformer .300 kVA (240×480 Primary, 120×240 Secondary) | Hubbell Acme Electric (HUBDX) | 50–5000 VA range; 240×480 input | Epoxy encapsulated core & coil; efficiency focus |
| GoHz 30 kVA Isolation Transformer (Single Phase, 480V to 240V) | GoHz | 30 kVA; 480 V to 240 V; copper windings | High efficiency; rugged, dry-type enclosure |
| ABB 9T58K2810 Low Voltage Dry Type Transformer (0.5 kVA, 240×480 to 120/240) | ABB | 0.5 kVA; 240×480 primary to 120/240 secondary | Moisture-resistant; seismic-qualified; compact |
Below are five detailed product sections designed to help you compare capabilities, installation needs, and performance characteristics—without opinionated bias and with a focus on objective specifications and reliability.
Hubbell Acme Industrial Control Transformer .050 kVA
This transformer features a 240×480 primary and 120×240 secondary, with a compact design suitable for panel mounting. It provides a wide 50–5000 VA range and uses an epoxy encapsulated construction to shield the core and coil assembly from contaminants. The high-quality silicon steel lamination minimizes core losses, contributing to overall efficiency in continuous operation. Suitable for control circuits and equipment requiring reliable step-down isolation in industrial environments.
American Rotary 30 KVA Auto Transformer
This 30 kVA three-phase auto transformer offers multi-tap input options at 600, 480, 400, 240, and 208 V, enabling flexible voltage conversion in mixed systems. The Type 3R enclosure supports outdoor or semi-outdoor installations. This design is ideal for facilities that need on-site voltage adaptation for motors, drives, and critical equipment, while maintaining robust insulation and thermal performance.
Hubbell Acme Industrial Control Transformer .300 kVA
This unit provides a 240×480 primary to 120×240 secondary configuration with epoxy encapsulation for core and coil protection. Its laminated silicon steel construction reduces core losses and supports higher efficiency. The product aligns with control circuits and small-enclosure installations requiring dependable isolation at moderate power levels, with consistent performance under industrial loads.
GoHz 30 kVA Isolation Transformer
This single-phase isolation transformer handles up to 30 kVA with 480 V input and 240 V output, using copper windings for durability and efficiency. It emphasizes high isolation performance, tight regulation, and low thermal loss, making it suitable for powering high-demand machinery and preventing ground loops in industrial environments. The heavy-duty dry-type enclosure supports indoor installation with reduced vibration and noise.
ABB 9T58K2810 Dry Type Transformer
This 0.5 kVA low voltage transformer provides 240×480 primary input and 120/240 secondary output. It is designed for light industrial uses such as HVAC systems and control panels, with encapsulated construction for durability. The unit’s moisture resistance and seismic qualification enhance reliability in challenging environments, while its compact form factor fits tight electrical rooms or equipment cabinets.
Hubbell Acme Industrial Control Transformer .200 kVA
Featuring a 240×480 primary and 120 secondary, this unit provides a compact, epoxy-encapsulated solution designed to resist contaminants. The silicon steel lamination minimizes iron losses, supporting improved efficiency across a wide VA range. Suitable for panel-mounted control circuits in industrial settings and environments requiring reliable isolation with steady output.
American Rotary 30 kVA Wye Auto Transformer
This three-phase auto transformer is designed for dry-type operation with a Wye 240V primary and 208V secondary configuration, enabling step-up or step-down between 240Y/208Y voltages. It supports 60 Hz operation and offers insulation robust enough for industrial loads, with a focus on flexible wiring configurations to suit varied electrical systems.
Acme Electric T2535163S Low Voltage Distribution Transformer
This single-phase transformer provides 240×480 primary to 120/240 secondary with encapsulated construction and an electrostatic shield for enhanced protection. It offers quiet operation and reliable isolation suitable for distribution in control panels, lighting circuits, and small mechanical systems within industrial facilities.
Buying Guide: Key Purchase Considerations For 480V To 240V Transformers
- Configuration and rating: Identify whether you need single-phase or three-phase, and select a model that matches the required VA/kVA rating for continuous duty without overheating.
- Voltage range and taps: Look for multi-tap options (e.g., 600, 480, 400, 240, 208 V) to accommodate existing power networks and future changes.
- Isolation vs. auto transformers: Isolation transformers reduce noise and ground loops, while auto transformers offer compact, cost-effective voltage conversion for compatible loads.
- Enclosure and mounting: Dry-type, epoxy-encapsulated designs are common for indoor installations. Consider Type 3R or IP ratings for outdoor or harsh environments.
- Efficiency and losses: High-quality silicon steel laminations and copper windings improve efficiency and reduce heat, extending equipment life in industrial settings.
- Maintenance and durability: Encapsulated cores resist contaminants; seismic qualification and moisture resistance add reliability in challenging sites.
- Safety and compliance: Ensure the transformer adheres to local electrical codes and is suitable for use in control panels, HVAC systems, or production lines.
When selecting a 30 kVA transformer for a 480 V to 240 V application, balance your voltage needs, phase requirements, and installation environment. The listed models emphasize robust construction, efficiency-focused laminations, and protective enclosures that align with typical industrial workflows. Detailed specifications from each manufacturer should be validated against system drawings and safety standards prior to purchase.