NWL History

NWL, Inc. – Over 75 Years in the Power Conversion Business

The company was founded in the 1930’s by John Nothelfer as a transformer repair shop – Nothelfer Winding Laboratories, hence the name NWL. In 1968, Mr. Nothelfer retired and sold the company to a group of 13 employees led by then Vice President, Jim Seitz. The company was owned and operated by Jim Seitz’s sons, David and Bert until July of 2024 when it was acquired by American Super Conductor (AMSC).

NWL continues to operate as NWL with the primary manufacturing plant in Bordentown NJ.  NWL is best known for supplying high reliability equipment for difficult applications and environments.  Another real strength is the ability to collaborate with their customers to design and deliver high voltage power equipment to meet the needs of the application and market.

This requires top notch people with knowledge of applications and limits of the products.
NWL has many longstanding customers who rely on NWL to provide the best possible solutions to their power conversion needs.

NWL is now one of the largest independent suppliers of transformers and power supplies for demanding industrial, military, and research customers.

Contact NWL for Industrial and Military Power Equipment

Contact NWL for further assistance with high performance transformers, power supplies, inductors and capacitors for industrial and military applications.