SQFlex 1-8 Solar Submersible Pump

The SQFlex 1-8 is a solar submersible pump designed for water supply from shallow

wells, with low daily flow requirements. Because of its small size, it is a perfect match

as a replacement pump for a wind-powered or hand-pump water supply, and the

pump also excels as part of a battery system. This makes it the most competitive

solar water supply solution on the market for these small-scale applications.

The SQFlex 1-8 is – like its larger siblings in the world-renowned

SQFlex family – an intelligent pump with high-efficiency permanent

magnet motor available with multistage centrifugal

hydraulics and low starting voltage.

• Built-in Maximum Power Point Tracking (MPPT) software and

motor protection

• Wide voltage range and flexibility for AC/DC power sources
• Dry running protection
• Easy to install and extremely reliable
• Tank filling system by connecting to CU200 and remote monitoring

through GSM by connecting to CIU Flex

High-efficiency pump with a permanent magnet motor

The SQF 1-8 pump comprises of a MSF motor and composite

hydraulic centrifugal pump (3”) for low heads and low flow rates.

The permanent magnet motor speed range is 3000-10700 rpm.

Pump Type: SQF 1-9 (N)

Part No: 98842517

Pump size: 3”

Power supply to pump: 30 - 300 V DC, PE, 1 x 90 - 240 V, -10 %/+6 %, 50/60 Hz, PE

Power consumption: Max. 300 W

Current consumption: Max. 8.4 A

Run-up time: Depends on energy source

Strat/stop: No limit to the number of starts/stops per hour

Enclosure class: IP68

Conductivity: ≥70 μs/cm (micro Siemens)

Sound Pressure Level: The sound pressure level of the pump is lower than the limiting values stated in the EC Machinery Directive.

Radio Noise: The SQF complies with the EMC Directives 2014/30/EU

Tested according to the standards EN 61000-3-2:2014 and EN 61000-3-3:2013

EN55014-1:2006 + A1:2009 + A2:2011

EN55014-2:1997 + A1:2001 + A2: 2008

Reset function: The SQF can be reset via the CU200 or by disconnecting the power supply for 1 minute.

Power factor:  PF = 1

Operation via generator: Voltage: 230 V AC -10 % / +6 %

The generator output must be minimum 1.55 kV A

Earth-leakage circuit breaker: If the pump is connected to an electric installation where an earth-leakage circuit (ELCB) is used as an additional protection, this circuit breaker must trip out when earth fault currents with DC content (pulsating DC) occur.

Borehole diameter: Minimum 76 mm

Installation depth: The pump must at a minimum be completely submerged in the pumped liquid.

Suction strainer: Holes of the suction strainer: O 2.5

Pumped liquids: pH 5 to 9, media temperature max. 40 °C

Sand content up to 50 g/m3

Marking: CE

Dimensions: L 990mm, B 74mm S Rp 1 ¼“

Gross weight (kg): 5.974