December 1, 1998
IMPulse NC LLC, a design/supply installer of Traction Power Systems, has acquired substantially all of the assets of UniTrac Systems, a specialty firm with deep roots in the supply of Overhead Contact Equipment and switch machines for electrified transit systems.

February 17, 2000
IMPulse NC LLC, the leading supplier of traction power systems, has acquired the OB (former Ohio Brass) Overhead Transit Line from Westinghouse Air Brake Technologies Corporation (formerly WABCO).

October 21, 2000
IMPulse NC LLC, the leading North American supplier of traction power systems, has acquired the EMC Operating Unit of Ansaldo Transmissione e Distribuzione S.r.l. a Company of Finmeccanica group.

November 13, 2000
IMPulse NC LLC, the leading North American supplier of traction power systems, has acquired the assets of the Traction Rectifier Business of ABB Automation, Inc. of New Berlin, Wisconsin. The business consists of Diode and Thyristor rectifiers and specialty relays for traction applications.

September 1, 2001
IMPulse NC LLC, the leading North American supplier of traction power systems, has obtained its first traction electrification systems contract in the State of North Carolina.

December 14, 2001
IMPulse NC LLC, the leading North American supplier of traction power systems, has begun a $1.25 million dollar expansion to its main manufacturing facility. The project, which started in December 2001, is expected to be complete within six months.

August 28, 2007
Effective August 28, 2007, IMPulse NC LLChas sold its traction power substation (TPS) systems business to Reuel, Inc.

Please note that this transaction does not affect in any way IMPulse's other business operations consisting of the Overhead Electrification Group (OEG) product line, the battery substation (BASS), or the EMC Traction high speed DC circuit breaker line which are the key components and focus for IMPulse NC.

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April 06, 2009
IMPulse NC LLC announces that the Envitech Energy Battery SubStation (BASS) is ready and available to meet the needs of the Transit Investments for Greenhouse Gas and Energy Reduction (TIGGER) program.

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April 08, 2009
IMPulse NC LLC announces that announces job increases and business opportunities as a result of the renewed interest and focus for investing in public transportation as part of the American Recovery and Reinvestment Act of 2009 (ARRA), the Transit Investments for Greenhouse Gas and Energy Reduction (TIGGER) program, the 2009 Omnibus Appropriations Act and the Obama-Biden comprehensive New Energy for America Plan.