45kVA 480V to 208V dry-type isolation transformer for industrial power distribution, three phase electrical isolation transformer manufactured in China for USA, Canada, Brazil, Australia and global markets – PowerNex

45kVA 480V to 208V Dry-Type Isolation Transformer for Industrial Power Distribution

Power Rating: 45 kVA
Type: Dry-Type Isolation Transformer
Primary Voltage: 480 V, Three Phase
Secondary Voltage: 208Y/120 V, Wye, Grounded Neutral
Connection: Three Phase Wye–Wye (standard), custom configurations available
Frequency: 50/60 Hz
Cooling: Air Natural (AN), oil-free
Standards: ANSI, IEEE, IEC, DOE efficiency
Certifications: UL, cUL, CSA, CE, SGS (optional)
Insulation Class: F / H
Enclosure: NEMA 1 indoor (NEMA 3R optional)
Applications: Industrial and commercial power distribution, control panels, data centers, HVAC, and sensitive electrical loads requiring isolation.

45kVA Dry-Type Isolation Transformer

480V Primary / 208Y/120V Secondary | Three Phase | 60Hz

The 45kVA dry-type isolation transformer is a reliable and efficient solution for stepping down 480V three-phase power to 208Y/120V while providing full electrical isolation. Designed for North American (60Hz) and global power systems, this transformer ensures enhanced safety, stable voltage distribution, and long-term performance in industrial, commercial, and infrastructure applications.

Manufactured by PowerNex, a China-based leading manufacturer, supplier, factory, and wholesale exporter, this dry-type electrical isolation transformer is widely supplied to North America and worldwide markets, including the United States, Canada, Brazil, Argentina, Australia, Southeast Asia, the Middle East, and Europe.

Technical Specifications (Standard Model)

Item Specification
Rated Capacity 45kVA
Transformer Type Dry-Type Isolation Transformer
Primary Voltage 480V
Secondary Voltage 208Y/120V
Phase Three Phase
Frequency 60Hz
Insulation Class Class F (Standard) / Class H (Optional)
Cooling Method Air Natural (AN)
Winding Material Copper (Standard) / Aluminum (Optional)
Temperature Rise 80K / 115K
Enclosure NEMA 1 (Indoor) / NEMA 3R, IP23, IP44 (Optional)
Installation Indoor / Semi-Outdoor
Efficiency High-efficiency design, low losses
45kVA dry type isolation transformer 480V to 208Y/120V, three phase electrical isolation transformer manufactured in China for USA, Canada, Brazil, Australia and worldwide markets, factory direct supply – PowerNex

⚡ Key Features & Benefits

Full Electrical Isolation

Provides complete galvanic isolation between the primary and secondary circuits, helping protect equipment from electrical noise, ground loops, and transient disturbances.

Stable & Reliable Power Conversion

Ensures a consistent 208Y/120V output from a 480V input, suitable for mixed loads such as lighting, control systems, automation panels, and sensitive electronics.

Dry-Type, Oil-Free Design

No oil, no leakage risk, no fire hazard—ideal for indoor installations, commercial buildings, and environments with strict safety requirements.

Low Maintenance & Long Service Life

Robust insulation systems and optimized thermal design reduce maintenance costs and ensure dependable long-term operation.

🏭 Typical Applications

  • Industrial manufacturing plants

  • Commercial buildings & office facilities

  • Data centers & IT infrastructure

  • Automation and control panels

  • HVAC systems

  • Hospitals and medical facilities

  • Infrastructure and utility projects

This 45kVA dry-type isolation power transformer is commonly used wherever 480V distribution systems must safely supply 208Y/120V loads.

🌍 North America & Global Market Supply

PowerNex supplies dry-type isolation transformers for global sales, serving customers in:

United States, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, and other international markets.

As a factory-direct transformer manufacturer, we support:

  • OEM & ODM projects

  • Wholesale and bulk supply

  • Long-term distributor partnerships

🛠 Customization & Engineering Support

We offer fully customized dry-type isolation transformers tailored to your project needs:

  • Custom voltage combinations

  • Different kVA ratings (10kVA–3000kVA)

  • Copper or aluminum windings

  • Special insulation systems

  • Enclosure customization (NEMA / IP)

  • Special environmental or altitude requirements

Our engineering team works closely with clients to ensure each transformer meets application conditions and regional standards.

📜 Certifications & Standards Compliance

PowerNex dry-type isolation transformers can be designed and tested to meet international and regional standards, including:

  • UL (North America)

  • CSA (Canada)

  • CE (Europe)

  • ANSI / IEEE

  • IEC

Certification scope depends on project requirements and market destination.

📌 Project Case Study – North America

Industrial Facility Power Distribution Upgrade

Location: North America
Application: Industrial control and auxiliary power system
Product Supplied: 45kVA Dry-Type Isolation Transformer (480V → 208Y/120V)

Challenge:
The client required a safe, code-compliant solution to supply 208Y/120V loads from an existing 480V three-phase distribution network, with minimal maintenance and high safety standards.

Solution:
PowerNex supplied a 45kVA dry-type electrical isolation transformer, designed for 60Hz operation, with a NEMA 1 enclosure and Class F insulation.

Result:

  • Stable and isolated power output

  • Improved system safety and reliability

  • Smooth integration into the client’s electrical system

45kVA dry type isolation transformer 480V to 208Y/120V, three phase power transformer manufactured in China for USA, Canada, Brazil, Australia and global markets, factory direct supply – PowerNex
45kVA dry-type isolation transformer with 480V primary and 208Y/120V secondary, three phase 60Hz electrical isolation power transformer manufactured in China for USA, Canada, Brazil and global markets – PowerNex
45kVA 480V to 208V dry-type isolation transformer, three phase electrical isolation transformer manufactured in China for USA, Canada, Brazil, Australia and global markets, factory direct supply – PowerNex

🔒 Safety, Protection & Performance Design

The 45kVA dry-type isolation transformer from PowerNex is engineered with multiple layers of electrical and thermal protection to ensure stable operation in demanding environments.

Built-in Protection Options

  • Electrostatic shield (optional) for noise and harmonic reduction

  • Over-temperature protection (PT100 / thermal sensors optional)

  • Short-circuit withstand design

  • High mechanical strength windings to resist vibration and inrush current

These features help protect downstream equipment while improving overall system reliability.

🌡 Thermal Management & Insulation System

PowerNex applies optimized thermal design to ensure efficient heat dissipation and long service life.

  • Optimized airflow channels for natural air cooling

  • Low-loss core material to minimize heat generation

  • Class F insulation as standard, Class H available for higher temperature environments

  • Reduced hot-spot temperature to extend insulation lifespan

This makes the transformer suitable for continuous duty operation in industrial and commercial power distribution systems.

🔌 Electrical Compatibility & System Integration

This 480V to 208Y/120V dry-type isolation transformer is designed for seamless integration with:

  • North American 480V three-phase distribution systems

  • Panelboards and switchgear

  • MCCs (Motor Control Centers)

  • UPS systems and backup power solutions

The transformer supports balanced and unbalanced loads, making it ideal for mixed-use applications where lighting, control circuits, and equipment share the same power source.

🏢 Indoor & Project Installation Flexibility

PowerNex dry-type isolation transformers are designed with installation flexibility in mind.

Installation Options

  • Floor-mounted or wall-mounted (depending on enclosure and rating)

  • Indoor electrical rooms

  • Commercial buildings and plant rooms

  • Clean environments where oil-filled transformers are not permitted

Optional enclosures such as NEMA 3R or IP-rated housings allow semi-outdoor or protected outdoor installations.

🌱 Energy Efficiency & Environmental Benefits

Compared to traditional oil-filled transformers, dry-type isolation transformers offer:

  • Oil-free, environmentally friendly operation

  • No leakage or contamination risk

  • Reduced fire hazard

  • Lower insurance and compliance costs

PowerNex designs transformers with high efficiency cores and optimized winding layouts to reduce no-load and load losses, supporting energy-saving initiatives worldwide.

📦 Manufacturing Capability & Quality Control

All PowerNex transformers are manufactured under strict quality management procedures:

  • Precision core cutting and stacking

  • Vacuum pressure impregnation (VPI) or resin-based insulation processes (as required)

  • In-house routine and type testing

  • Electrical, insulation, and functional verification

Each unit is inspected before shipment to ensure consistent performance and compliance with project specifications.

🚚 Packaging, Logistics & Global Delivery

PowerNex provides secure packaging and export-ready logistics solutions for global customers.

  • Shock-resistant wooden crates or steel frames

  • Moisture protection for long-distance shipping

  • Sea freight, air freight, and multimodal transport options

  • Export documentation support

We have extensive experience shipping transformers to USA, Canada, South America, Australia, Southeast Asia, Middle East, and Europe.

📊 Typical Transformer Rating Range (Available)

While this page focuses on the 45kVA model, PowerNex supplies a full range of dry-type isolation transformers:

  • Capacity range: 10kVA – 3000kVA

  • Primary voltages: 208V, 380V, 400V, 415V, 440V, 480V, 600V

  • Secondary voltages: 120V, 208V, 220V, 230V, 240V, 277V, 400V

  • Frequency: 50Hz / 60Hz

This allows customers to standardize across projects while working with a single manufacturer.

🧠 Engineering Support & Technical Assistance

PowerNex provides professional technical support throughout the project lifecycle:

  • Pre-sales technical consultation

  • Load calculation and transformer selection

  • Drawing approval and data sheet confirmation

  • Installation guidance and commissioning support

Our team helps ensure the transformer is correctly specified for both North American electrical codes and international applications.

❓ Frequently Asked Questions (FAQ)

Q: Is this transformer suitable for North America?
Yes. It is designed for 480V / 208Y/120V, 60Hz, fully compatible with North American power systems.

Q: Can this transformer be customized?
Yes. Voltage, kVA rating, insulation class, enclosure type, and certifications can all be customized.

Q: Does PowerNex support UL or CSA certification?
Yes. UL, CSA, and CE compliance can be supported based on project requirements.

Q: Is this transformer suitable for sensitive equipment?
Yes. Electrical isolation helps reduce noise, surges, and ground loop issues.

📈 Long-Term Value for Distributors & EPC Contractors

Choosing PowerNex as your transformer supplier offers:

  • Factory-direct pricing

  • Stable long-term supply

  • OEM branding support

  • Consistent quality across projects

This makes PowerNex an ideal partner for distributors, EPC contractors, and system integrators serving global markets.

📞 Contact PowerNex for Technical Details & Quotation

If you are sourcing a 45kVA dry-type isolation transformer, or need a customized 480V to 208Y/120V three-phase power transformer for North America or global projects, PowerNex is ready to support your requirements.

Contact us today to receive:

  • Technical datasheets

  • Engineering consultation

  • Competitive pricing

  • Delivery schedules

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