Transformers & Power Supplies


Bring transformers and power supplies to customers in the global energy market with high-quality testing and certification from CSA Group

Did You Know?

  • In 2014, nuclear energy sources contributed roughly one quarter (27.5%) of all gross electricity generation in the European Union (EU).
  • Final electricity consumption has increased by 25% in the EU-28 since 1990, according to the European Energy Agency

Respond to the changing needs of energy consumers and market conditions with speed and efficiency when you work with CSA Group. Our end-to-end testing and certification services help you ensure your products meet national and international compliance requirements.

CSA Group’s experienced team is known across North America and internationally for testing a broad spectrum of transformers and power supplies, including air-cooled transformers (dry-type), low-voltage transformers, autotransformers, and reactors. We have deep testing expertise with key standards for the industry, including IEC 61558-1, CSA C22.2 No. 47, CSA C22.2 No. 66 Series, and CSA C802.2 (energy efficiency). Beyond the direct testing of transformers, powers supplies, and backup power systems, we also offer a broad range of related services, including battery testing.

Multiple locations around the world to help you access your target market

As a leading testing and certifications provider for transformers and power supplies, we offer state-of-the-art facilities in North America, Europe, and Asia. CSA Group gives customers confidence in your product and helps you access markets around
the world with:

  • Streamlined services: Shorten your time to market with our full suite of quality product testing and certification services
  • Certifications for global markets: We certify products in accordance with many trusted standards, have eigh Global Market Access (GMA) offices located in North America, Europe, and Asia, and laboratories and affiliates in over 30 countries. We can guide you through the CE Marking process for Europe and the Energy Efficiency Verification (EEV) program in Canada.
  • Accreditations by respected agencies: We are accredited by the Standards Council of Canada (SCC) and Occupational Safety and Health Administration (OSHA)
  • Excellent customer service: Our team is committed to fast, dependable service and training to guide you through the testing and certifications process

Products Certified

We make the certifications process for transformers and power supplies simple and efficient

Get power generation and energy products in front of customers faster and boost confidence with a mark from CSA Group, known worldwide for quality and technical expertise.

Air-Cooled (dry-type) and Low-Voltage Transformers

Depend on CSA Group technical staff in an office near you to quickly and expertly certify many types of transformers, giving you an edge in this competitive market.


Access new customers for autotransformers with our globally recognized testing, inspection, and certifications services.


Gain efficiency in testing and certification of reactors at CSA Group, with offices and testing facilities around the world.

Shop Standards

Access the standards you need to compete in the competitive global energy market.

CSA Group is a leader in the development of standards for a range of transformers and power supply products. Many of our standards are harmonized with others to encourage broader adoption, as well as great sustainability and safety for employees and consumers.


Access the standards you need to compete in the competitive global energy market.



Transform your innovations into quality products that meet critical requirements with our expert testing services.



Launch new products, and boost customer confidence in North America and beyond with our global certification solutions.

Marks & Labels

Marks & Labels

Get the marks you need to access and enter your target market in North America with confidence.

Value-Added Services

Value-Added Services

Save time and gain efficiencies with access to our customer portal, certified products listings, and more.

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