Grundfos MAGNA1 D 50-100F (280) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 50-100F (280) is an A-rated, EuP-ready variable-speed twin-head circulator designed for circulating water in heating and domestic hot-water systems where variable flow and low energy use are priorities.

• Variable-speed twin-head design: selectable pump settings with nine light fields for indication and three proportional-pressure, three constant-pressure, and three fixed-speed curves.
• Electrical and performance data: 240V 1Ph 50Hz supply; motor power range 21.01–433 W; full-load current 0.23–1.93 A; maximum flow 40 m3/h; maximum head 10 m.
• Construction and service life: cast-iron pump body with maintenance-free operation and low noise level; manufacturer-stated two-year warranty.
• System features: suitable as main pump, for mixing loops and heating/air-conditioning, and can accept an external signal to force operation at the maximum curve (useful in systems with hot-water priority).

Dimensions and weight are provided by the manufacturer: 280 mm (h) × 517 mm (w) × 379 mm (d), weight 42.0 kg. The MAGNA1 D 50-100F (280) is intended for heating applications that need reliable, low-energy circulation and flexible control options.