Grundfos MAGNA1 D 40-120F (250) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 40-120F (250) is an A-rated, EuP-ready variable-speed twin-head circulator designed for circulating water in heating and domestic hot-water systems. It runs on 240V single-phase power and delivers up to 32 m3/h flow with a maximum head of 12 m, making it suitable as a main pump, for mixing loops, and for heating and air-conditioning applications. The pump accepts an external hot-water priority signal to force operation on the maximum curve, useful for systems such as solar-heating integrations.

• Variable-speed twin-head design with nine light fields for clear pump-setting indication
• Three proportional-pressure, three constant-pressure and three fixed-speed curves for flexible control
• Maintenance-free operation, low noise, and low life-cycle energy use
• Cast-iron construction, 40 mm flanged connections, 250 mm port-to-port dimension (D40-120 to D40-180)
• Operating liquid: water; temperature range: -10 to 110 °C; voltage: 240V 1Ph 50Hz

Spec details include motor power range 17.03–476 W, full-load current 0.19–2.1 A, weight 35.3 kg, and overall dimensions 250 mm (h) × 514 mm (w) × 372 mm (d). The unit carries a 2-year manufacturer warranty and is identified by GTIN 5710626494590 and SKU 97924383.