Grundfos MAGNA1 100-80F (450) Variable Speed Circulator 240V

The Grundfos MAGNA1 100-80F (450) is an A‑rated, EuP‑ready variable‑speed circulator designed for circulating water in heating systems and domestic hot‑water systems. It supports variable flows, offers hot‑water priority via an external signal that forces operation on the maximum curve, and is built with 100 mm flanged connections and 450 mm port‑to‑port dimensions.

• Variable speed control with three proportional, three constant and three fixed‑speed curves for matched flow and head.
• Low energy consumption consistent with EuP requirements and a low noise level for building installations.
• Robust cast‑iron construction; liquid temperature range -10 to 110 °C suitable for typical heating and hot‑water duties.
• Performance: up to 57 m3/hr flow and up to 8 m head; 240 V, single‑phase 50 Hz supply.
• Selection and operation aided by nine light fields indicating pump setting; maintenance‑free design and long service life.

Physical data and handling: 450 mm port‑to‑port, 100 mm flanges, overall dimensions 450 × 356 × 433 mm and weight 37.0 kg. Manufacturer details and a 2‑year warranty are provided with the unit.