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Custom Dry-Type Transformers, Manufactured in Canada

For over 50 years, Rex Power Magnetics has continuously designed and built CSA-certified, UL-listed dry-type transformers in Concord, Ontario, for industrial, commercial, and utility applications across North America. From standard distribution units to custom medium-voltage cast coil designs, our engineering team builds transformers to your specifications — and tests them in our accredited on-site facility before they ship.

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Built and Tested to UL, IEEE, and CSA Standards

Every transformer is tested in our CSA-certified on-site facility before it ships. Routine and type testing are performed to UL, IEEE, and CSA standards, with customer-witnessed testing available on request — providing verified performance and full documentation with every unit.

Rex Power Magnetics is a Canadian manufacturer of low-voltage distribution and medium-voltage dry-type power transformers, trusted by engineers and specifiers across North America.

What Sets Rex Apart

Designed and built in Canada. Lead times you can plan around, with engineering and inventory in North America.

Custom-engineered as standard. Most of what we ship is built to specification — not pulled from a catalog. Special voltages, taps, enclosures, and cooling configurations are everyday work.

CSA-certified testing on every unit. Tested to UL, IEEE, and CSA standards in our own facility. Test reports available on request.

Engineering support throughout the project. Our team works with specifiers, OEMs, and contractors from initial design through commissioning — not just at the quote stage.

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Product Categories

From standard distribution units to custom medium-voltage designs, Rex builds dry-type transformers and power magnetic products for industrial, commercial, and utility applications.

Medium Voltage Power Transformer

Cast coil and VPI/VPE construction up to 15,000 kVA and 46 kV class. Built to specification for utilities, data centers, renewable energy, and industrial facilities where high reliability and short-circuit strength are critical.

Low Voltage Distribution Transformer

General-purpose, K-factor rated, and harmonic mitigating designs from 15 kVA to 5,000 kVA. Suitable for commercial buildings, industrial plants, and light-industrial power distribution.

Also: Autotransformers · Industrial Control · Hazardous Location · Mini Power Centers · Reactors and Filters · RC Snubbers

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Industries We Serve

Engineered to your specifications. Tested to North American standards. Built in Canada.

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Solutions We Offer

Control & Automation
All Chokes
Reactors & Filters
Mini Power Center
Specialty Products
Transformer Cutout
Low Voltage Distribution Transformers
Medium Voltage Power Transformers

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