Grundfos MAGNA1 D 50-180F (280) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 50-180F (280) is a variable-speed, twin-head circulator designed for circulating water in heating and domestic hot-water systems where variable flow is required. It delivers up to 50 m3/h flow and a maximum head of 16 m while meeting EuP-ready 'A' rated energy requirements, which helps reduce operating power in continuous-circulation applications.

• Variable-speed control: three proportional-pressure, three constant-pressure and three fixed-speed curves for matching pump performance to system demand.
• Application flexibility: specified for heating systems, main pumps, mixing loops and heating/air-conditioning, and can accept an external signal to force maximum curve (useful for hot-water priority or solar-heating situations).
• Robust build and connections: cast-iron construction with 50 mm flanged connections and 280 mm port-to-port dimension (D50-120 to D50-180 models).
• Low life-cycle cost and low noise: maintenance-free design and selection indicators (nine light fields) simplify setup and operation.

Electrical and physical details: 240 V 1Ph 50 Hz supply, motor power range and full-load current as supplied, 2-year manufacturer warranty. The MAGNA1 D 50-180F is intended where dependable, energy-efficient circulation and straightforward pump-setting options are required.