Controlled Power, LLC designs and manufactures its own lines of both ac and dc circuit breakers, including the HSN high-speed and FBK high-speed dc circuit breakers. In addition, CP builds bus duct and power rectifiers for use on traction power substations, mass transit systems and heavy industrial applications. All CP Type HSN dc circuit breakers can consist of either a wheeled truck and housing or be panel mounted. The FBK ratings type tests carried out at 1000 volts exceeds the requirements of ANSI C37-16:1980 table 11A. Feel free to call our main office toll free at 800-321-0414, locally at 330-834-3200, or fax us at 330-834-3201 for more information.