A.Y. McDonald 6617-164, SubDrive 2W Constant Pressure Controller, 230 Volts, 1 Phase, Nema 3R Enclosure

SKU #: 6617-164
Brand: A.Y. McDonald
Available For Order! (Usually Ships 5-7 Days)This product is direct shipped from the manufacturer to our distribution center where it is checked, packaged and processed by our quality control team. The shipping time shown is the estimated number of business days the product will ship out from our warehouse, excluding any manufacturer back logs or delays.
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A.Y. McDonald Nema 3R SubDrive 2W

The SubDrive 2W is designed to handle single-phase; two wire pumping systems up to 1 HP, the SubDrive 2W is a constant pressure system that offers outdoor rated NEMA 3R enclosure protection.  The SubDrive2W is designed to convert a conventional 1/2 HP, 3/4 HP, and 1 HP pump system to a variable speed constant pressure system by simply replacing the pressure switch. Maximum pump output using the SubDrive2W is similar to the performance achieved using a conventional pressure switch. Therefore, the pump selection criteria are the same as if a pressure switch were used.


  • Single-phase, two wire motor, constant pressure, 230 Volts
  • 1/2 HP, 3/4 HP, or 1 HP performance
  • Easy to install NEMA 3R rated enclosure 
  • Plug & Play
  • Built-in diagnostic protection
  • UL & cUL listed


  • Residential water systems
  • Landscaping
  • Water treatment
  • Geothermal applications where a two-wire motor is currently installed
BrandA.Y. McDonald
Mfg. Number6617-164
Voltage230 Volts

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