Product Overview
The Grundfos CU 202 is a monitoring and control unit designed for Grundfos SQFlex submersible pumps in solar-powered water pumping systems. Pre-configured for tank filling, it provides local pump control and flexible configuration for other water pumping applications.
Key Features
- Compatible with the full Grundfos SQFlex pump range.
- Built-in Bluetooth for commissioning and configuration using the Grundfos GO app.
- LED interface displays operating status, alarms, warnings and pump performance data.
- Supports remote monitoring via Wi-Fi, GENIbus or Modbus with suitable connected systems.
- Communicates with the pump over the power cable, reducing additional control wiring.
- Two configurable inputs and outputs, adjustable maximum pump speed and scheduling-ready real-time clock.
- Supports optional 24 V DC backup power for controller measurements and communication.
Applications
- Solar-powered borehole pumping with Grundfos SQFlex pumps.
- Tank-filling systems using a suitable level or float switch.
- Remote water pumping installations requiring monitoring and configurable control.
Why Choose This Product?
The CU 202 combines straightforward on-unit operation with app-based configuration and remote monitoring options, helping installers manage SQFlex pumping installations without separate pump communication cables.
Important Notes
- Designed for Grundfos SQFlex pumps; verify the full system configuration before installation.
- Optional 24 V DC backup supply and external sensors or communications equipment must be specified separately.
- Electrical installation must be carried out by a suitably qualified installer in accordance with applicable regulations and the manufacturer's instructions.
Technical Specifications
| Specification |
Detail |
| Brand |
Grundfos |
| Model |
CU 202 |
| Manufacturer Product Number |
92799796 |
| Product Type |
SQFlex pump controller |
| Power Input |
25 W |
| Power Consumption |
5 W |
| AC Rated Voltage |
1 × 90–240 V AC |
| DC Rated Voltage |
30–300 V DC |
| Maximum Current Consumption |
12.5 A |
| Enclosure Rating |
Type 3R (IP55) |
| Maximum Mains Fuse |
16 A |
| Optional Backup Supply |
24 V DC (22–28.8 V DC), 13 W maximum |
| Operating Temperature |
−20 °C to +50 °C |
| Relative Humidity |
5–95% |
| Maximum Pump Cable Length |
300 m |
| Power Input and Pump Output Terminals |
16 sq.mm |
| Communications |
Bluetooth, Wi-Fi, GENIbus, Modbus |
| Configurable I/O |
2 channels |
| Approvals |
RCM, UKCA |
