Metron MTS Automatic Transfer Switch provides operation of electric fire pump motors from a alternate source of power when the normal source fails. They may be used with any Metron electric fire pump controller - across-the-line, primary resistance, part winding, Wye-Delta, Auto Transformer or Solid State Reduced Voltage Types. These transfer switches are an integral part of the fire pump controller. They are factory assembled, shipped and installed as a part of the controller. The combination fire pump controller/transfer switch is listed by Underwriters' Laboratories, Factory Mutual, and meets all the latest requirements of Section 7-8 of NFPA Standard for Installation of Centrifugal Fire Pumps. The MTS Automatic Transfer Switch is a mechanically held double throw switch with a fast acting drive mechanism. Operating coils are momentarily energized from the source to which the load is being transferred. The switch is interlocked electrically and mechanically to prevent both services from feeding the load at the same time. The transfer switch is capable of manual (non-electrical) operation.Undervoltage sensing devices are supplied which monitor each phase of normal service. When the voltage of any phase falls below the preset level the transfer switch automatically transfers to the alternate source.Voltage and frequency sensing devices are provided to monitor one phase of the alternate source and will inhibit transfer to the alternative source until adequate voltage and frequency are available.
|Application||Fire Protection System|
|Type||Automatic Transfer Switch|