Grundfos MAGNA1 D 50-60F (240) Variable Speed Twin Head Circulator 240V

The Grundfos MAGNA1 D 50-60F (240) is an A‑rated, EuP‑ready variable‑speed twin‑head circulator designed for circulating water in heating systems and domestic hot‑water systems. It supports variable flows, offers low energy consumption and is maintenance‑free, with an external signal input to force operation to the maximum curve for hot‑water priority (useful in solar‑heating or priority applications).

• Applications: heating systems, main pump service, mixing loops, heating & air‑conditioning, and domestic hot‑water.
• Performance & electrical: 240V 1Ph 50Hz; motor range 20.91–253 W; full load current 0.22–1.15 A; max flow 32 m3/h; max head 6 m.
• Design & installation: twin‑head flanged connections with 50 mm flanges; D50‑40 to D50‑80 use 240 mm port‑to‑port, D50‑120 to D50‑180 use 280 mm port‑to‑port (spacer kit may be required when replacing earlier MAGNA/UPS/D models).
• Durability & service: cast‑iron construction, liquid temperature range −10 to 110 °C, low noise level and long service life; 2‑year manufacturer warranty.

Unit dimensions are 240 mm (h) × 515 mm (w) × 379 mm (d) with a product weight of 42.0 kg. Use the pump where variable speed control, energy efficiency and hot‑water priority capability are required.