Our technical team can help to design, modify and reverse engineer to your specification.

Here at R Baker (Electrical) Ltd, we have a long history of producing and manufacturing auto transformers specifically to each client’s needs. With over 30 years’ experience in the industry, we are also perfectly placed to be able to provide auto transformer rectifier units which offer an affordable, durable and efficient way to manage power requirements.


Auto transformer rectifier units

We make it a priority to be in discussion with our clients at each point of the design and manufacturing process, as we welcome clear input that allows us to reach your ideal solution. As well as working with you to make a perfectly suited end-product, each of the ATRUs that we manufacture come complete with full working drawings, detailed component lists as well as operating instructions in any language required.

We are also able to include various custom features on our auto transformer rectifier units to suit each client’s exact preferences. We’re confident that with our in-house standards for excellence and our vast experience in the field, there is no more trustworthy or accomplished manufacturer in our industry.

We manufacture each of our ATRUs from our workshops based in Liverpool, with all of our design and manufacture processes completed in-house to make sure that they are continually monitored and kept to the highest standards. Our technical team have the skills and experience to be able to offer a range of bespoke design requirements, so we’re confident that you’ll receive the exact ATRU for your needs, one that offers peace of mind in relation to both the safety of its operation and the continued quality of its performance.

Our services

We are able to deal with a wide range of different requests, with our highly skilled technical staff capable of helping you find the ideal auto transformer rectifier unit (ATRU) for your particular environment. We aim to provide a quality of design, manufacture and customer service that gives every single client full confidence in the service they are receiving, both in terms of quality and safety standards. Every single part of our ATRU manufacturing process conforms to BS EN ISO 9001:2000 standards. In addition to this, R Baker also regularly subject our manufacturing standards to both internal and external audits. This ensures that we are continually keeping to our in-house commitment to excellence and providing the best service to each and every client.

With our extensive experience in manufacturing auto transformer rectifier units for a wide range of different operating settings, whether rail or offshore, military or marine, we are equipped to understand your manufacturing needs exactly. We can provide detailed thought as to the specific needs posed by operating in each different setting. This enables us to ensure that every single ATRU we build can offer protection against environments that are humid, vibrating, dusty or gaseous.

Additional Support

Our support team are available over the phone throughout our Monday to Friday working hours, and we are also able to provide rapid lead-times in seeing to any potential issues. We understand how vital it is to know that your ATRU can provide consistently safe power management, and that in the rare possibility there is any disruption, that it can be corrected in the quickest time possible. We keep this promise to every client, providing support whenever and wherever needed.

Please give our friendly customer service staff a call on 0151 486 6760 to ask any further questions that you may have about the range of ATRUs we manufacture. We are also able to refer you on to our technical team for detailed design conversations.

Transformer range

  • Current transformers
  • Auto transformers
  • Isolation transformers
  • Earthing transformers
  • Bushing transformers
  • Custom built transformers
  • Air cooled transformers
  • Liquid cooled transformers (oil immersed)
  • Harmonic current reduction transformers
  • Step up and step down transformers
  • Delta/Star, interconnected star transformers
  • Marine / offshore transformers
  • Transformer-rectifier units for D.C. power supplies
  • Military transformers / NSN / NATO transformers
  • Transformers maintenance programmes