At ASCO Power Technologies, we have a long history of innovation. In fact, it’s part of our DNA. We are on a constant drive to bring new technologies and new products to our customers to help them become more productive. From paralleling switchgear to surge suppressors, load banks to communication products and power quality measurement tools, ASCO innovation stretches way beyond transfer switches.



Automatic Switch Company was founded on September 5th of this year in Baltimore, Maryland.  Its products were automatic controls for elevators and generators, and pressure controls for pumps and compressors.


Automatic Switch Company moved to New York City. David H. Darrin was President and the sole owner. The Company under Mr. Darrin's leadership pioneered in the field of electromagnetic design.  The mechanically held, electrically operated movement patented by David H. Darrin is still in use.


Mr. Hurlburt redesigned the mechanically held movement which led to its use in remote control switches and transfer switches.


During the week beginning January 20th, the 575 employees moved to a brand new plant on 30 acres in Florham Park, New Jersey.


Continued growth required substantial enlargement of the facilities in Florham Park in June of this year. By this time the company employment exceeded 1,000.


The Company acquired B-K Electrical Products Co., Inc. a manufacturer of electrical control equipment in January.


The Company established ASCO Services, Inc., a wholly-owned subsidiary, in February, 1979 located in Florham Park. ASCO Services, Inc provides field repair and maintenance services to ASCO domestic customers who have purchased ASCO electrical control products.  Similar field repair and maintenance services are provided to Canadian customers through Ascolectric Ltd. based in Brantford, Canada.


The Company was acquired by Emerson Electric Company, St. Louis, Missouri on May 17, 1985.


The Company celebrated its 100th Anniversary (1888 to 1988) on Saturday, September 10, 1988 and held a gala Centennial Picnic for employees and their families.


On January 1, 1998, the Company acquired Firetrol, Inc., Cary, North Carolina, a manufacturer of electric and diesel fire pump controllers, jockey pump controllers and equipment for controlling and monitoring electric and diesel fire pump sprinkler systems.


On November 1, 2006, ASCO expanded its manufacturing operations to Welcome, NC.


On October 1, 2011, ASCO obtains management of Liebert Surge Protection. Many of the Surge Protection products are manufactured in Reynosa, MX.


On March 16, 2012, ASCO acquired Avtron Loadbank, Inc. Cleveland, OH, which includes N. J. Froment, Ltd., Easton-on-the-Hill Stamford, United Kingdom.


On October 31, 2017, ASCO Power Technologies was acquired by Schneider Electric.