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DUPLEX ALTERNATOR - COMPATIBLE WITH UT3P AND UT2W SUBDRIVE UTILITY

SKU: FRA-5850012000
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$995.00

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Franklin Mono/SubDrive Duplex Alternator


Franklin Electric’s SubDrive Alternator allows a water system to alternate between two parallel pumps controlled by separate SubDrives. The user-selected switching interval balances the run time of each pump system to evenly disperse the workload. The SubDrive Duplex Alternator is ideal for applications requiring redundant systems.


For high demand situations, the Alternator works on a lead-lag principle. When demand exceeds the capacity of one pumping system, the other comes online to supplement production.


  • Ability to work with any two FE SubDrives or MonoDrives
  • Push-button design to select switching interval, 1 - 24 hours or manual
  • Indicator lights to show time settings, status and faults for each pump
  • Safe operation using a 120VAC/12VAC outdoor rating and low voltage wiring connection
  • Fail/safe design (system still produces water if Alternator is taken offline)
  • Simple installation
  • Fault detection
  • Optional alarm contacts

  • NEMA 4 enclosure protects against:
    • Rain, sleet, snow, and external ice
    • Splashing or hose-directed water
    • Falling dirt or windblown dust
    • Input Voltage: 115V
    • Input Hertz: 60
    • Factory Set Pressure 50 PSI
    • Adjustment Range: 25-80 PSI
    • Enclosure: NEMA 4
    • Temperature: -13 to 125°F (-25 to 51°C)
    • Relative Humidity: 0-100%, non-condensing or condensing.
    • Weight: 1.3 lbs
    • Height: 5.8”
    • Width: 5.8”
    • Depth: 3.6”

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