Curtiss-Wright Enters Agreement with Woojin to Supply World Traction Inverter

Wednesday 28 April 2021

Christchurch, U.K. – April 28th, 2021 – Curtiss-Wright’s Industrial Division will supply Woojin Industrial Systems, a leading electric locomotive and bus manufacturer, with the WTI-S260 model traction inverter for their 11-meter electric bus platform. “The award represents an excellent opportunity to gain more real-world mileage and experience with a leading vehicle developer in Korea, while expanding the customer base for the WTI product line”, stated Jason Watkins, Senior General Manager of Curtiss-Wright’s Industrial Division.

The WTI-S260 is a 600Vdc vehicle-grade inverter for single motor applications, which has been designed to ensure customers receive a robust, low-risk solution. The product was developed by Curtiss-Wright’s brand family of Arens Controls in Chicago applying the extensive experience in the mobile traction inverter market, having successfully logged over 4 billion on-road kilometers since launching their first production units in 2002.   

The World Traction Inverter family was designed with two primary safety goals in mind. The first is to provide a high-voltage product with features that render it safe for personnel during vehicle service and maintenance. Secondly, the industry is moving toward delivering components and systems that adhere to ISO 26262, so Curtiss-Wright is proactively delivering traction inverters to the market with this requirement in mind.

The WTI-Traction Inverters operate with multiple motor technologies, including AC induction, permanent-magnet synchronous (PMS) and interior permanent-magnet (IPM) types. The Woojin unit is being supplied by Curtiss-Wright in a driveline package including a 1300 Nm IPM motor and a 2-speed transmission.  The traction inverter will be manufactured in Curtiss-Wright’s Suzhou facility, while the IPM motor and 2-speed transmission have been specified and sourced by Curtiss-Wright.

Sales Inquiries: Please forward all sales and reader service inquiries to Curtiss-Wright Industrial, Tel: +44.1202.034000; email:

For more information on Curtiss-Wright Industrial products, visit or call +44.1202.034000

About Curtiss-Wright Corporation

Curtiss-Wright Corporation (NYSE:CW) is a global innovative company that delivers highly engineered, critical function products and services to the Aerospace and Defense markets, and to the Commercial markets including Power, Process and General Industrial. Building on the heritage of Glenn Curtiss and the Wright brothers, Curtiss-Wright has a long tradition of providing reliable solutions through trusted customer relationships. The company employs approximately 8,200 people worldwide. For more information, visit





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