Pressure relay Grundfos PM2 10A

Intelligent Pressure Manager Grundfos PM 2

The Grundfos PM 2 (Pressure Manager) is an advanced electronic device for the automatic control of pumps. The PM 2 model offers maximum flexibility and comfort by allowing adjustable start pressure, combining control and full pump protection in a single unit.

Application

The controller is designed for the automation of surface and submersible pumps in water supply systems. It starts the pump when the start pressure is reached and stops it when water consumption ends (at zero flow).

Key Advantages

• Adjustable Start Pressure: The ability to set the cut-in pressure between 1.5 and 5 bar allows the device to be adapted for different systems and building heights.
• Informative Panel: An LED indicator on the front panel displays the current pressure in real-time.
• Comprehensive Protection: Integrated dry-running protection and cycling protection (leakage detection) prevent pump failure.
• Automatic Restart: In case of an alarm, the device attempts to restart the pump automatically at set intervals.
• Max Run Time Function: Allows limiting continuous pump operation (e.g., to 30 minutes) to protect against flooding in case of pipe bursts.

Technical Specifications

• Start Pressure Range: 1.5 - 5.0 bar.
• Maximum Operating Pressure: 10 bar.
• Voltage: 220 - 240 V, 50/60 Hz.
• Maximum Current: 10 A.
• Protection Class: IP 65.
• Connection: G 1" (male thread).
• Maximum Liquid Temperature: +50°C.