Product Overview

The DG Series Single-Phase Isolation Transformer with NEMA 3R metal enclosure is specially designed for indoor and outdoor industrial power isolation applications. Supporting both 120V/120V and 240V/240V configurations, the transformer effectively isolates electrical interference, suppresses voltage fluctuations, and provides clean, stable power for sensitive equipment.

Constructed with 100% copper winding and a rugged NEMA 3R weather-resistant metal enclosure, the transformer is suitable for harsh industrial environments where protection against rain, dust, and accidental contact is required.

Standard capacities from 2KVA to 30KVA are available from stock, with larger capacities and custom specifications available upon request.

Key Features

NEMA 3R Weather-Resistant Metal Enclosure

The heavy-duty NEMA 3R enclosure provides reliable protection for outdoor and industrial installations.

Features include:

• Rain-resistant construction

• Dust and debris protection

• Durable powder-coated metal housing

• Suitable for indoor and outdoor applications

• Enhanced operational safety

Ideal for:

• Outdoor industrial systems

• Construction sites

• Factory power distribution

• Communication equipment

• Utility and control systems

120V/120V & 240V/240V Isolation Protection

The transformer provides electrical isolation without changing voltage levels, helping:

• Reduce electrical noise

• Eliminate ground loop interference

• Protect sensitive equipment

• Improve power quality

• Enhance operational safety

Widely used for stable power supply and isolation protection in industrial and commercial systems.

100% Copper Winding

Built with high-quality copper winding for reliable long-term operation.

Advantages:

• Higher conductivity

• Lower power loss

• Better temperature performance

• Improved overload capability

• Longer service life

Stable & Clean Power Output

The DG series isolation transformer helps maintain stable voltage output while reducing power line disturbances and electromagnetic interference.

Suitable for:

• Precision instruments

• Medical equipment

• Automation systems

• Audio & communication equipment

• Imported electrical devices

Efficient Cooling Design

The enclosure features ventilation openings and an industrial cooling structure for efficient heat dissipation during continuous operation.

Benefits:

• Lower operating temperature

• Stable continuous-duty performance

• Improved reliability

Industrial-Grade Safety Protection

Designed with multiple protection features:

• Grounding protection

• High-voltage warning labels

• Insulated internal structure

• Secure metal enclosure

• Safe maintenance access

Technical Specifications

Typical Applications

The DG Series NEMA 3R Isolation Transformer is widely used for:

• Outdoor industrial equipment

• Factory automation systems

• Construction power systems

• Communication equipment

• Medical equipment

• Laboratory instruments

• Sensitive electronic devices

• Voltage isolation applications

Customization Service

We support customized production for:

• Voltage combinations

• Power capacity

• Enclosure design

• Terminal arrangement

• Mounting structure

• OEM branding

Contact us for technical support, drawings, pricing, and customized transformer solutions.