Grundfos CU 302 Smart Constant Pressure Controller with Bluetooth & Wi-Fi for SQE Pumps

The Grundfos CU 302 is an advanced smart controller designed specifically for monitoring and controlling SQE submersible pumps in residential and light commercial water supply applications. Pre-configured for constant pressure operation, the CU 302 delivers a true plug-and-pump solution that maintains stable water pressure across varying demand, making it ideal for modern homes, rural properties, and pressure boosting systems.

Built with ease of installation and long-term reliability in mind, the CU 302 features an intuitive onboard display, built-in Bluetooth connectivity, and seamless integration with the Grundfos GO app. It supports multiple control modes beyond constant pressure, offers detailed system monitoring, and enables remote access via Wi-Fi, GENIbus, or Modbus through Grundfos Connect or third-party SCADA systems. As the direct replacement for both the CU 300 and CU 301, the CU 302 consolidates their full functionality into one powerful, future-ready controller.

FEATURES

• Designed for monitoring and control of Grundfos SQE submersible pumps
• Pre-configured constant pressure mode for fast commissioning
• Built-in Bluetooth for setup and diagnostics via Grundfos GO
• Remote monitoring via Wi-Fi, GENIbus or Modbus (Grundfos Connect / SCADA)
• Power-line communication with the pump – no additional control cables required
• Clear onboard display with system status, alarms and warnings
• Adjustable pressure setpoint directly on the controller or via app
• Alarm, warning and installation logs with historical operating data
• Two configurable digital inputs and outputs
• IP55 enclosure for reliable wall-mounted installation

SPECIFICATIONS

• Product Number: 92799797
• EAN: 5715119769131
• Supply Voltage: 1 × 90–240 V
• Mains Frequency: 50 / 60 Hz
• Rated Current: 12.5 A
• Enclosure Class: IP55
• Ambient Temperature Range: -20 to +50 °C
• Relative Humidity: 5–95%
• Mounting: Wall mounted
• Material: Plastic enclosure
• Approvals: CE, EAC, RCM, UKCA
• Weight (Net): 1.24 kg
• Dimensions (H × W × D): 160 × 232 × 96 mm

APPLICATIONS

• Residential water supply systems
• Constant pressure domestic boosting
• Rural and farm water systems
• Rainwater harvesting systems
• Small commercial pressure systems
• Installations requiring remote monitoring and diagnostics