Grundfos MAGNA1 D 40-180F (250) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 40-180F (250) is an A‑rated, EuP‑ready variable‑speed twin‑head circulator designed for circulating water in heating and domestic hot‑water systems. It delivers up to 35 m3/h flow and a maximum head of 16 m while operating from a 240V single‑phase supply, offering low energy consumption and quiet, maintenance‑free operation.

• Variable‑speed twin head: three proportional, three constant and three fixed‑speed curves for flexible system control.
• Hot‑water priority support: external signal forces pump to operate on the max curve for priority applications such as solar‑heating systems.
• Performance and limits: max flow 35 m3/h, max head 16 m; liquid temperature range −10 to 110 °C.
• Mechanical and electrical: 40 mm flanged connections, 250 mm port‑to‑port dimension, cast‑iron construction; motor power range 15.4–629 W and full‑load current 0.19–2.75 A at 240V 1Ph 50 Hz.
• Package details: unit weight 35.3 kg and physical dimensions 250 mm (h) × 514 mm (w) × 372 mm (d); manufacturer warranty 2 years.

Built for systems with variable flows, the MAGNA1 D40‑180F combines selectable control curves, robust cast‑iron construction and EuP compliance to provide energy‑efficient circulation across heating, mixing and domestic hot‑water applications.