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3W Motors – 50 Hz

Mahavir’s 3W Submersible well pump set are suitable for wells of minimum 80mm or larger in internal diameter. Continuous rating in 5?C to 25?C water as per IEC 60034-1
This product is designed for best efficiency and can be easily replaced with Hand Pump, Jet Pump and Windmill pumps. 
Pump set comes with a 2-Pole water cooled and lubricated rewindable type motor with insulation class B and a pump having radial hydrodynamic layout Thus, suitable for operations when completely immersed in water or suitable liquids. 

Technical Data

Parameter 1-Phase Model
Rated Voltage 240V AC
Rated Frequency 50 Hz
Rated Speed 2900 RPM
Voltage tolerance -15% to +6%
Protection IP68
Max. Starts per hour 10
Min. Start per month 1
Rotation Anticlockwise
Max. Temperature 33?C
Mounting Standards NEMA Standards
Starting Method Capacitor start and run
Insulation Class B

Material of Construction

Part Name Material
Upper and lower housing Grey Cast Iron or AISI 304 or AISI 316
Motor shaft Chromium Steel
Bearing bush Leaded Tin Bronze
Rotor laminations Electrical Sheet Steel
Rotor conductor core EC Copper or Die Cast aluminum
Stator laminations Electrical Sheet Steel
Stator windings PVC or Polywrap Electro Grade Copper
Breather diaphragm Nitrile Rubber
Thrust bearing Resin & C40 V/S SS 420
Stator casing Stainless Steel Sheet
Cable gland Nitrile Rubber
Cable conductor Electro Grade Copper
Cable insulation PVC or Rubber sheathed

Model De-Code


1-Phase Models

MODEL No. of Pole kW HP Volt Ɲ min-1 Max Load Current (A) Nominal Eff (%)
3WB10.75-SLIM 2 0.75 1.00 240 2760 7.50 50.0
3WB10.37CE5L 2 0.37 0.50 240 2740 5.30 42.0
3WB10.55CE5L 2 0.55 0.75 240 2750 6.20 45.0
3WB10.75CE5L 2 0.75 1.00 240 2760 7.50 50.0
3WB101.1CE5L 2 1.10 1.50 240 2760 10.50 53.0
MODEL Height (H) Width(W) Weight Volume
mm ft. mm ft. Kg lb cu.ft
3WB10.75-SLIM 515 1.69 68 0.22 11.00 24.25 0.29
3WB10.37CE5L 460 1.51 74 0.24 9.80 21.61 0.25
3WB10.55CE5L 500 1.64 74 0.24 11.00 24.25 0.26
3WB10.75CE5L 515 1.69 74 0.24 11.25 24.80 0.27
3WB101.1CE5L 535 1.76 74 0.24 10.8 23.81 0.28