Ultra-fast lead times
Ultimate peace of mind

Off-the-shelf solutions in just a few weeks. Yes, it’s possible.

Gone are the days you had to wait for 4-5 months to get the power transformer control cabinets and components you needed.

Off-the-shelf solutions in just a few weeks. Yes, it’s possible.

Gone are the days you had to wait for 4-5 months to get the power transformer control cabinets and components you needed.

Introducing the

The N-Series is an off-the-shelf control cabinet solution for power transformers and shunt reactors. These control cabinets have been engineered according to the most up-to-date IEEE standards for transformer control cabinets. Each product can be configured by choosing from a list of options in order to match your particular requirements.


  • Includes a full set of drawings (schematics, physical and wiring diagrams)
  • Painted 304 stainless steel 11-gauge control cubicle
  • Heavy-duty door hinges
  • Reinforced exterior door for added rigidity
  • Extra support for swing panels in the rest position
  • Layout designed to optimize device accessibility once installed on the transformer
  • Built with easily accessible North American material

Different configurations of N-Series control cabinets can be ordered depending on your application.
Please refer to the part number below for ordering.


a control cabinet for shunt reactors and ONAN power transformers


a control cabinet for ONAN/ONAF power transformers, with or without a load tap changer


a control cabinet for ONAN/ONAF/OFAF power transformers


a control cabinet for ONAN/ONAF/OFAF power transformers with a load tap changer

Your power transformer is only as good as the cabinet that protects and monitors it.

Count on a partner that offers you the off-the-shelf product to maintain its performance levels.

The N-Series advantage

Ultra-fast lead times

Get your power transformer control cabinets in just a few weeks.


We never compromise on the quality and attention to detail of our off-the-shelf products thanks to our advanced engineering.

Operational efficiency

No more back-and-forth during control engineering process.

Optimized worker productivity

Off-the-shelf power transformer control cabinets mean workers of all skill levels can get maintenance jobs done quickly.

Procurement you can rely on

Buy components that are readily available regardless of your location.

Maximum flexibility

If you foresee future changes, such as adding monitoring components, we take care of the control engineering.

Ease of doing business

Benefit from a seamless and efficient project experience from A to Z.


NOMOS quality management system meets the requirements of the ISO 9001 standard. ISO 9001:2015 is an internationally recognized standard that ensures that products and services meet the needs of customers through an effective quality management system. NOMOS has maintained continuous ISO 9001 registration since 2009. NOMOS’ ISO 9001:2015 accredited management system covers the design and manufacturing of control cabinets for power transformers.

N-Series power transformer control cabinets follow or exceed the following norms and guidelines:

  • IEEE C57.148
  • NEC and UL 508A
  • CEC and CSA 22.2 No. 286

Part of the VOLTYX family

When you partner with NOMOS, you benefit from our sister companies that can assist customers across the United States. Tap into their expertise in the installation and commissioning of control cabinets on your high-voltage assets as well as the configuration and programming of monitoring controllers, communication networks and protection relays (unionized or non-unionized requirements).

Learn more

There is a better way to manage your power transformer control cabinets.

It starts with off-the-shelf control cabinets tailored to what YOU want. Contact us today for more information on the N-Series.

Contact our experts today!