Grundfos SP3A-9 (3 Wire), 0.55kW Submersible Bore Pump

Grundfos SP3A-9 (3 Wire), 0.55kW Submersible Bore Pump

Grundfos SP submersible pumps are renowned for their high efficiency and reliability. Made entirely of corrosion-resistant stainless steel, SP pumps are ideal for a wide variety of applications.

Built to deliver optimum efficiency during periods of high demand, the SP pumps provide low long-term costs and high operating reliability regardless of the application.  

The Grundfos SP range offers high efficiency, high resistance to sand and other abrasives, motor burnout protection, and easy maintenance. A complete monitoring and control system is available for constant optimisation of the pumping system.

$1,526.80 (inc GST)

Availability: In stock

Product Description


Submersible borehole pump, suitable for pumping clean water. Can be installed vertically or horizontally. All steel components are made in stainless steel, EN 1.4301 (AISI 304), that ensures high corrosive resistance. This pump carries drinking water approval. The pump is fitted with a 0.75 kW MS402 motor with sand shield, lip seal, water-lubricated journal bearings and a volume compensating diaphragm. The motor is a canned type submersible motor offering good mechanical stability and high efficiency. Suitable for temperatures up to 40 °C. The motor is not fitted with a temperature sensor. If temperature monitoring is desired, a Pt1000 sensor can be fitted. The motor is for direct-on-line starting (DOL).

Downloads & Specifications

Additional Information

Additional Information

PDF Download Documents

PDF Download - SP Range Product Brochure

PDF Download - SP Installation and Operating Instructions

Pumped liquid:    Water
Maximum liquid temperature:    40 °C
Max liquid t at 0.15 m/sec:    40 °C
Liquid temperature during operation:    20 °C
Density:    998.2 kg/m³
Speed for pump data:    2900 rpm
Rated flow:    3 m³/h
Rated head:    40 m
Shaft seal for motor:    LIPSEAL
Curve tolerance:    ISO9906:2012 3B
Pump:    Stainless steel
     EN 1.4301
Impeller:    Stainless steel
     EN 1.4301
Motor:    Stainless steel
     DIN W.-Nr. 1.4301
     AISI 304
Pump outlet:    Rp1 1/4
Motor diameter:    4 inch
Electrical data:
Motor type:    MS402
Rated power - P2:    0.55 kW
Mains frequency:    50 Hz
Rated voltage:    3 x 380-400-415 V
Rated current:    2,00-2,20-2,35 A
Starting current:    470 %
Cos phi - power factor:    0,70-0,64-0,60
Rated speed:    2850-2860-2870 rpm
Start. method:    direct-on-line
Enclosure class (IEC 34-5):    IP68
Insulation class (IEC 85):    B
Built-in temp. transmitter:    no
Minimum efficiency index, MEI ≥:    0.70
ErP status:    EuP Standalone/Prod.
Net weight:    10 kg
Gross weight:    11 kg
Shipping volume:    10.6 m³