Submersible Motors

Gransa “GW series” motors are deep well / borehole rewindable submersible type, pre-filled with water, which acts as coolant and lubricant. These motors are available in single phase and three phase power supply. All single phase motors are thermally protected . Rotors are supported with bush and thrust bearings to withstand maximum axial and radial thrust loads. All mounting dimensions are in accordance with NEMA standards.


Nominal Diameter 4″
Power Range (kW) Single Phase : 0.37 – 2.2kW, Three Phase : 0.37 – 7.5kW
Speed 2900 rpm
Versions Single Phase : 230V 50Hz, Three Phase  : 380V -415V,  50Hz
Method of Starting Single Phase – Capacitor Start and Capacitor Run (CSCR), Three Phase – Direct On Line(DOL).
Maximum Down Thrust Load 0.37 – 1.5kW – 3000N, 2.2 – 7.5 kW – 6500N
Type of Duty S1 (Continuous)
Degree of Protection IP 58
Class of Insulation Y
Max.Temperature of Liquid 33˚C
Minimum Cooling Flow Along the Motor 0.15 m/sec
Starts per Hour Single Phase – 20 Times, Three Phase – 12 Times
Available M.O.C Type A & N


  • High efficiency
  • Water lubricated Rewindable motor
  • Thermal protection in single phase motors
  • Extremely hardwearing and water lubricated bearings
  • Corrosion resistant stainless steel motor body
  • Can be easily dismantled and repaired


  • Residence
  • Agriculture
  • Gardens
  • Sprinkler systems
  • Fountains
  • Building services