Fire Pump Automatic Transfer Switch

These transfer switches are an integral part of the fire pump.

Fire pump automatic transfer switch.

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. Transfer switch fire pump controllers route two sources of power to the fire pump motor. Select or set the ocpd to carry indefinitely the sum of the locked rotor current of the fire pump and pressure maintenance pump motor s and 100 of the ampere rating of the fire pump s accessory equipment. 1008 and nema ics 227 47 requirements for an ats to be used in a fire pump circuit.

For fire pump service both an automatic transfer switch and a bypass isolation transfer switch are available from cummins power generation. New fire pump controller with automatic transfer switch ats within the same cabinet is also being planned. Fire pump controller mpt300ts pilot series across the line with automatic transfer switch. Although both sources can be a utility when option u or modifications 26 27.

This sizing recommendation covers sizing the generator set for either arrangement and sizing the transfer switch for the second arrangement where separate from the fire pump controller. Metron mts automatic transfer switch provides operation of electric fire pump motors from a alternate source of power when the normal source fails. The fire pump control accessory includes all features necessary for a lake shore molded case dual motor automatic transfer switch ats to meet or exceed nfpa 20 chapter 10 u l. A generator used to supply a fire pump need not be dedicated to the fire pump but the direct connection requirement you refer to section 695 4 b in the 1996 nec would require a separate transfer switch for the fire pump usually as part of a listed combination fire pump controller and transfer switch.

Instructions for eaton s atc 300 plus automatic transfer switch found in eaton s lmr plus electric fire pump controllers pdf 2 mb 1 31 2012 o m manual for the atc 300 plus ats controller spanish. Typically one is a utility source connected to the normal side of the transfer switch controller and the other is a standby emergency generator connected to the emergency side.