Wet rotor circulation pump MAGNA3 40-150 F 250 1x230V PN6/10 97924271

Maintenance-free circulating pump for heating and cooling systems

The Grundfos MAGNA3 40-150 F 250 pump is an advanced solution for central heating and cooling installations. It features high energy efficiency (EEI 0.18) and a maintenance-free design, minimizing the risk of the pump becoming blocked by impurities in the medium. This makes it reliable and requires minimal maintenance. The pump is particularly recommended for systems with variable flow, where precise regulation is key to optimizing energy consumption.

Design and functionality

MAGNA3 is designed for easy installation and use. It is equipped with an integrated controller that allows for flexible pump operation configuration – from constant pressure to proportional pressure control or automatic adaptation to operating conditions (AUTOADAPT). The control panel with a TFT display makes it easy to read parameters and change settings. The pump body made of cast iron GG 25 (GJL-250) ensures durability and corrosion resistance, and the impeller made of composite materials guarantees reliability. The pump has flanged connections compliant with EN 1092-2, which facilitates integration with existing installations.

Communication and control

The MAGNA3 pump offers a wide range of communication options, making it an ideal solution for modern building management systems (BMS). It supports protocols such as BACnet MS/TP, Modbus RTU, PROFIBUS and EtherNet/IP, and also has a built-in interface for wireless communication via Grundfos GO. Additionally, there is an analog interface signal (0-10 V / 2-10 V and 0-20 mA / 4-20 mA) and a potential-free switching contact. The motor speed controller is built-in, allowing for smooth and precise pump performance regulation. The synchronous motor with permanent magnets is characterized by high energy efficiency compared to traditional asynchronous motors.