Grundfos SQE 3-55 3" submersible pump, variable speed ready
Short description
Compact 3 inch multistage submersible pump for domestic water supply, irrigation, and tank applications. High efficiency motor with built in protection and soft start.
Why We Like It
This is a premium bore and tank pump in a very small package. Good on its own but when paired with a Grundfos control kit, becomes a full variable speed constant pressure pump.
We highly recomend speaking with our staff when selecting a pump for a bore hole.
Tailored prewiring and pipework can be quoted upon request so the pump comes to you ready to go.
Pump size
- Medium house with multiple storeys and bathrooms - Up to 4 outlets
Pump size guide
Install type
- Submerged – Pump designed to be submerged in water typically inside a tank or bore, for quiet, efficient performance with zero priming required.
Install type guide
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Warranty Period
This pump is backed by a warranty period of 2 Years. Contact us if you need help confirming coverage or making a claim.
More information
More information
The SQE 3 55 N is a 3 inch multistage submersible pump designed for domestic water supply, irrigation, and clean water transfer applications. Its compact diameter allows installation in small or restricted boreholes while still delivering strong pressure and flow.
Can be installed inside tank or directly down bore holes.
The pump features floating impellers with individual tungsten carbide and ceramic bearings, reducing wear when handling minor sand content. Built in soft start reduces starting current and water hammer, making it suitable for generator and off grid power supplies.
Integrated motor protection safeguards against dry running, overload, overtemperature, undervoltage, and overvoltage, ensuring long service life with minimal external controls required.
Ideal for
- Domestic bore water supply
- Rainwater tank boosting
- Garden and irrigation systems
- Small or restricted boreholes
- Off grid or generator powered installations
The SQE is a high performance 3 inch multistage submersible pump engineered for domestic and light commercial water supply applications. Designed for use in boreholes as small as 76 mm, it combines compact size with excellent pressure capability and high efficiency.
The pump uses floating composite impellers mounted on tungsten carbide and ceramic bearings. This design reduces axial thrust and wear, improving reliability when pumping clean water with minor abrasive content.
A permanent magnet single phase motor delivers high efficiency across a wide operating range. Built in soft start ensures smooth acceleration, low starting current, and reduced mechanical stress on pipework and fittings.
The motor includes comprehensive protection features including dry run protection, overload protection, overtemperature shutdown, and voltage fluctuation protection. These protections are integrated into the motor, removing the need for external control boxes in basic installations.
When paired with a suitable controller, such as a constant pressure unit, the SQE range can deliver stable household pressure regardless of demand. The pump is constructed from stainless steel and corrosion resistant materials, making it suitable for long term submerged operation in clean water applications.
For full technical specifications, performance curves, and installation guidance, refer to the manufacturer documentation
- KW rating - 1.15kw
- Head - Rated head 55m
- Flow - Rated flow 50lpm
- Motor phase type - Single Phase
