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SPI Duplex Time Dosing Control Panel (120/230V, 0-20FLA) - 50A810 / SSTDD128

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SPI Duplex Time Dosing Control Panel (120/230V, 0-20FLA) - 50A810 / SSTDD128

Availability: In stock

This panel was designed to control and monitor a duplex system with two submersible pumps. Includes pump circuitry, high water alarm, and 3 mechanical float switches for Timer Enable, Timer Override, and Alarm controls. A repeat cycle timer is included to control the time dosing function.




  • 120/230VAC, Single Phase, 0-20 FLA
  • (3) Mechanical Floats w/ 15ft Cords
  • Repeat cycle timer for Time Dose Applications
  • Automatic Alternating Relay
  • 360 degree red alarm light, High decible alarm buzzer (85 dB)
  • Amber pump run indicator light
  • Pump Hand/Off/Auto heavy duty toggle
  • Alarm On/Test/Mute heavy duty toggle
  • Field wiring terminal strips
  • 2 pole definite purpose contactors (100,000 cycle rating)
  • Motor circuit breaker
  • 3 amp control/alarm fuses
  • Color Coded Wiring
  • Dimensions: 12.25'' W x 14.63'' T x 7.25'' D
  • NEMA 4X Enclosure, UL 508A Listing


  • Works in Both Outdoor and Indoor Applications
  • Controlling A Single Submersible Pump Station
  • Time Dosing Applications
  • Repeat Cycle Timer Standard
  • Elapsed Time Meter and Cycle Counter Optional Additions
  • Monitoring Liquid Levels
  • Alerts of Submersible Pump Failure
  • Includes 3 Mechanical Float Switches
  • NEMA 4X Enclosure
  • UL 508A Listing
Additional Information

Additional Information

Manufacturer SPI
Attachment View File 50A810-A3C3C5C12C20__sales_sheet Size: (155.77 KB)
Attachment View File 50A810-SSTDD128__Folded_Paperwork Size: (99.17 KB)
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