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

The Grundfos MAGNA1 40-120F (250) is an A‑rated, EuP‑ready variable‑speed circulator for circulating water in heating systems and domestic hot‑water systems. Designed for systems with variable flow, it delivers up to 24 m3/h and 15 m head while running on 240V single‑phase power, and supports an external hot‑water priority signal to force maximum operation when needed.

• Variable control: three proportional‑pressure, three constant‑pressure and three fixed‑speed curves plus nine indicator light fields for pump setting.
• Performance and limits: max flow 24 m3/h, max head 15 m, liquid temperature range −10 to 110 °C.
• Installation facts: 220 mm port‑to‑port dimension with 40 mm flanged connections; cast‑iron construction; overall dimensions 220 × 234 × 369 mm and weight 17.7 kg.
• Electrical and motor data: 240V 1Ph 50Hz supply, motor power range and full‑load current span provided by manufacturer.
• User benefits: low energy consumption consistent with EuP readiness, low noise, maintenance‑free operation and suitability for mixing loops, main pump duties and heating/AC applications.

Supplied as SKU 97924178 with a 2‑year manufacturer warranty, the MAGNA1 40‑120F (250) is aimed at installers and system designers seeking a compact, high‑performance circulator for variable‑flow heating and hot‑water priorities.