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Single phase Duplex Alternator control panel

Single phase alternating, 0-7A
Model Number
1221W904H
$1,306.50
Duplex Alternator control panel

Rhombus 1221W904H

Duplex pump alternator alarm system and pump control for single phase pumps. Used for sump, sewage and effluent pumps. Duplex pumping is better than one big pump. One or the other pump starts normally in a alternating pattern. If one pump can not keep up or is not working then the sensors tell the second pump to kick in.
  • Includes duplex pump control alternator
  • Magnetic motor contactors
  • 2 terminal blocks
  • 3 floats (1 each for high-water, pump on and pump off)
  • Includes pump disconnects / circuit breakers
  • Floats have 20FT power cords
  • HOA switch offers either hand, off or automatic operations
  • Pump run indicator lights.
  • UL listed system
  • Starting Device: Magnetic Motor Contactor 120V only
  • Alarm Package: includes test/normal/silence switch, fuse, red light & horn
  • Enclosure Rating: Weatherproof, NEMA 4X (thermoplastic)
  • Pump Disconnects: Circuit Breaker 120V
More Information
Model Number 1221W904H
Series 122 Duplex Pump Systems Control Panel Single Phase
Wetted Materials FRP
Voltage (V) 115
Voltage (Range) 110-120
Viscosity Water 1.00 cp 31.00 ssu
Mechanical Seal No
Other 120V
Approvals UL
Country of Manufacture United States
Weight (Lbs) 19.000000
Warranty (YRS.) 3

Supporting Docs

Supporting Docs
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