Federal Aviation Administration, Southern Region, P.O. Box 20636, Atlanta, Georgia 30320, Attn: ASO-55S

59 -- TRANSFER SWITCH SOL DTFA06-95-B-50032 DUE 050295 POC Gail Bohannon, Procurement Technician, (404) 305-5785 Installation of Automatic Closed Transition Switch, 800A, 120/208V, 3 phase, 3 pole. This switch will operate in a make-before break mode without interrupting the load, providing both normal and emergency sources are acceptable. When utility source fails, the switch initiates starting of the engine generator set and transfer the load to the emergency source in an open transition mode. When the utility source is restores for and acceptable time, the switch transfers back to the normal source without interrupting the load (closed transition). An inphase monitor ensures that closed transition will occur only when the two sources are within +5 electrical degrees. Closed transition period shall not exceed 100 milliseconds. This switch shall be an ASCO 436380047XC in order to allow for compatibility with Engine Generator set.--Place of performance, Federal Aviation Administration (FAA), Airway Facilities Sector Field Office (AFSFO), Miami, Florida.--Estimated price range $25,00.00-$100,000.00. All responsible bidders will be considered. You may now fax your request for bid documents at (404) 305-5774. (0090)

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