International Version

122 duplex

The Model 122 control panel is designed to alternately control two 120, 208, or 240 VAC single phase pumps in water and sewage installations. The controller is provided with a pump selector switch that can be set to alternate the pumps to equalize wear or to call either pump to activate first with the other pump to activate in lag condition. If an alarm occurs, the alarm activates the audible-visual system. The alarm conditions include: high water, float out-of-sequence, pump fail-to-run, seal failure (optional). Common applications include: lift stations, pump chambers, and irrigation systems.


122 duplex


  • Touch safe circuit board housing and low voltage 12 VDC float circuits
  • Alarm (field programmable to flash)
  • Alarm automatic reset (field programmable to manual alarm reset)
  • Float out-of-sequence detection
  • Pump fail-to-run detection (field programmable to deactivate)
  • Controller protected by four auto resettable fuses (control, alarm, pump 1, and pump 2), no fuse replacement
  • Three second lag pump delay time, prevents simultaneous pump start-up
  • Standard package includes three 20′ control switches or EZconnex® float system
UL/cUL Listed
Five-Year Limited Warranty


122 panel components chart

  1. Newly designed larger NEMA 4X enclosure for indoor/outdoor use
    • Drip shield
    • 2 heavy duty wide clamping securable latches
    • Stainless steel 1/4 turn cover set screw
    • Low profile hinged padlockable cover
    • Integral mounting flanges
  2. Duplex Controller
    • Pump HOA switches with green/red LED indicators
    • Control Power ON/OFF switch
    • Power ON green LED indicator
    • Float status red LED indicators
    • Float push-to-test buttons
    • Pump selector switch
    • Auxiliary alarm contacts
    • Terminal blocks for incoming power and float switches
    • Option: adjustable seal failure circuits and red LED indicators (must select option 5E when ordering)
  3. Magnetic Motor Contactors control pumps by switching electrical lines.
  4. Circuit Breakers (optional) provides pump disconnect and branch circuit protection
  5. Ground Lugs
  6. Red LED Alarm Beacon
  7. Alarm Horn (not visible)
  8. Exterior Alarm Test/Normal/Silence Switch (not visible)


Available Downloads
Visit our downloads section of this website for additional literature.



Looking for support
or purchase information?

Contact us