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Grundfos SQFlex 1.2-3 Solar Submersible Pump

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Description

Advanced Water Supply Solution for Medium Heads and Flow Rates

The SQF 1.2-3 SQFlex centrifugal pump is a versatile and eco-friendly solution designed for medium heads and flow rates. Perfect for various water supply needs, the SQFlex system leverages renewable energy sources — including solar and wind — to deliver exceptional performance and sustainability. With adaptability at its core, this pump integrates seamlessly into diverse installation environments while ensuring reliability and efficiency.

Innovative Technology Features for Optimal Performance

Equipped with advanced features such as built-in maximum power point tracking (MPPT), dry-running protection, voltage safeguards, and overload protection, the SQFlex system exemplifies cutting-edge design. Its wide voltage range supports both AC (90-240 V) and DC (30-300 V) power inputs, allowing users to utilize various energy sources efficiently. The direct-on-line starting method further enhances operational simplicity, ensuring ease of use for both new and experienced users.

Key materials, including stainless steel components, contribute to robust durability and corrosion resistance. The pump, impeller, rotor, and motor are all crafted from high-quality AISI 304 stainless steel, ensuring long-lasting performance even under demanding conditions. Additionally, the integrated internal thermal protection guarantees safe operation, extending the lifespan of the motor while minimizing maintenance requirements.

Technical Precision and Installation Flexibility

The SQF 1.2-3 boasts impressive technical specifications that meet diverse water supply demands. Its three technical stages and maximum operating pressure of 15 bar deliver powerful and efficient pumping capabilities. The system supports water temperature ranges from 0°C to 40°C, making it suitable for various climates and applications.

Installation is streamlined with features like a standard Rp connection (1 1/4 inch) and a minimum borehole diameter of 76 mm. Whether for residential, agricultural, or industrial use, this pump adapts easily to different setups with optimized functionality. Additional certifications, including UKCA, CE, and EAC approvals, ensure compliance with international standards, promoting peace of mind for global users.

With a net weight of 9.81 kg and shipping volume of just 0.0242 m³, the pump is as convenient to handle as it is efficient. The product’s exceptional MEI (Minimum Efficiency Index) rating further underscores its environmentally conscious design, reducing energy consumption and operational costs.

The Perfect Choice for Renewable Water Solutions

The SQF 1.2-3 SQFlex centrifugal pump combines sustainability, adaptability, and durability to deliver a reliable water supply system. Ideal for renewable energy integration, this pump helps reduce dependence on traditional energy sources while supporting environmental conservation. Its advanced features, robust construction, and wide range of certifications make it a trusted choice for homeowners, businesses, and communities seeking efficient and flexible pumping solutions. Experience performance, reliability, and sustainability with the SQF 1.2-3 SQFlex centrifugal pump.

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DEYE 6 kW Single Phase 2 MPPT Hybrid Inverter

Higher yields / Safe & Reliable / Smart / User-friendly

The series, SUN-5/6K-SG01LP1-US SUN-7.6/8K-SG01LP1-US/EU, is a single-phase low voltage (48V) hybrid inverter that enables enhanced energy independence and maximizes self-consumption through export limit feature and “time of use” function. With the frequency droop control algorithm, this series product supports single-phase and three-phase parallel applications and the Max. parallel units are up to 16 PCs.

Remotely shutdown function

Smart Monitoring Platform
Thanks to the smart monitoring platform, Deye full series inverter products support remote shutdown immediately when an accident occurs. Setting parameters and FW updates remotely makes PV plant O&M easier.

  • Colorful touch LCD, IP65 protection degree
  • 6 time periods for battery charging/discharging
  • Max. charging/discharging current of 190A.
  • Max.16pcs parallel
  • DC coupled and AC coupled to retrofit existing solar system.
  • Support storing energy from diesel generators.
  • Max. battery charge efficiency of 95.4%
  • Unique Smart Load application and Grid peak shaving function
  • 4ms fast transfer from on-grid to off-grid mode, ensuing the traditional fixed frequency air conditioner works well
  • Certified by UL, CE, IEC, VDE, NRS, VFR, AS4777.2, CEI and INMETRO, etc.

Technical Specifications

Model SUN-5K-SG01LP1-US SUN-6K-SG01LP1-US SUN-7.6K-SG01LP1-US/EU SUN-8K-SG01LP1-US/EU
Battery Input Data
Battery Type Lead-acid or Lithium-ion
Battery Voltage Range (V) 40~60V
Max. Charging Current (A) 120A 135A 190A 190A
Max. Discharging Current (A) 120A 135A 190A 190A
Charging Curve 3 Stages / Equalization
External Temperature Sensor Yes
Charging Strategy for Li-Ion Battery Self-adaption to BMS
PV String Input Data
Max. DC Input Power (W) 6500W 7800W 9880W 10400W
Rated PV Input Voltage (V) 370V(125V~500V)
Start-up Voltage (V) 125V
MPPT Range (V) 150V-425V
Full Load DC Voltage Range (V) 300V-425V 200V-425V
PV Input Current (A) 13A+13A 26A+13A 26A+26A
Max. PV ISC (A) 22A+22A 44A+22A 44A+44A
Number of MPPT Trackers 2
Number of Strings per MPPT Tracker 1 2+1 2
AC Output Data
Rated AC Output and UPS Power (W) 5000W 6000W 7600W 8000W
Max. AC Output Power (W) 5500W 6600W 8360W 8800W
Peak Power (off-grid) 2 times of rated power, 10 S
AC Output Rated Current (A) 20.8/24 25/28.8 31.7/36.5 34.5/33 33.3/38.5 36.4/34.8
Max. AC Current (A) 22.9/26.4 27.5/31.7 34.8/40.2 38/36.3 36.7/42.3 40/38.3
Max. Continuous AC Passthrough (A) 40A 50A
Output Frequency and Voltage 50 / 60Hz; L1/L2/N(PE) 120/240Vac (split phase), 208Vac (2/3 phase),

L/N/PE 220/230Vac (single phase)
Grid Type Split phase; 2/3 phase; Single Phase
Current Harmonic Distortion THD<3% (Linear load<1.5%)
Efficiency
Max. Efficiency 97.60%
Euro Efficiency 97.00%
MPPT Efficiency 99.90%
Protection
PV Input Lightning Protection Integrated
Anti-islanding Protection Integrated
PV String Input Reverse Polarity Protection Integrated
Insulation Resistor Detection Integrated
Residual Current Monitoring Unit Integrated
Output Over Current Protection Integrated
Output Shorted Protection Integrated
Output Over Voltage Protection Integrated
Surge protection DC Type II / AC Type II
Certifications and Standards
Grid Regulation CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE 0126-1-1, RD 1699, C10-11
Safety EMC / Standard IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2
General Data
Operating Temperature Range (℃) -40~60℃, >45℃ Derating
Cooling Smart cooling noise
e (dB) <30 dB
Communication with BMS RS485; CAN
Weight (kg) 32
Size (mm) 420W×670H×233D
Protection Degree IP65
Installation Style Wall-mounted
Warranty 5 years
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Grundfos CU 202 SQFlex Control Unit

CU 202 is designed for monitoring and controlling SQFlex submersible pumps in solar applications.

The simple user interface and built-in Bluetooth module ensure easy installation and configuration. The Bluetooth connection to the Grundfos GO app offers extensive setup and monitoring options.

CU 202 is pre-configured for tank filling, the most used application, offering a plug-and-pump solution, which saves time on commissioning. For other applications, the controller provides several control modes, which can be easily selected and set through the Grundfos GO app. Grundfos GO makes the configuration easier and allows installers to set up high-performing systems.

CU 202 communicates with the pump through the power cable. This communication principle is called mains borne signaling or powerline communication and means that no additional cables are required to the pump.

Grundfos GO offers detailed information and logs that help the installer to find the root cause in failure situations. In addition, the controller can use Wi-Fi, GENIbus, or Modbus to monitor the system remotely either through Grundfos Connect or another SCADA system. Remote monitoring saves time when inspecting installations.

CU 202 is equipped with power and pump connections and offers 2 configurable inputs and outputs. Additionally, a backup battery can be added to the controller to maintain communication and measurements when solar power is insufficient.

The display of the controller shows:

  • System status indication
  • Alarm and warning indication

The pump can be turned on and off through the display of the controller. The controller can display a read-out of the application-related data. It is also possible to adjust the setpoint. The LEDs on the display of the controller can be set to sleep mode, for example, to avoid attracting wildlife.

The following logs are available through Grundfos GO or remote monitoring:

  • User setting log (25 entries)
  • Alarms and warnings (50 entries)
  • Installation log (filled out by the installer)
  • Historic data for different intervals (total, today, and yesterday) for:
    • Operation time
    • Number of starts
    • Energy consumption
    • Volume pumped (provided that a flow meter is connected)

CU 202 indicates warnings and alarms on the display of the controller. Additionally, the Grundfos GO app provides further information on these events including the recommended solutions.

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