Products
LEO MAC550
LEO MAC550 Permanent Magnet Intelligent Booster
Automatic variable-speed pressure booster for domestic clean-water supply. Integrates the pump, non-return valve, sensor, speed controller and pressure vessel. The touch panel displays working pressure and fault codes and allows pressure adjustment.
| Supply | 220–240 V; 50/60 Hz |
|---|---|
| Maximum power | 550 W |
| Maximum flow | 4.8 m³/h |
| Maximum head | 40 m |
| Maximum speed | 5200 rpm |
| Maximum current | 2.7 A |
| Maximum suction lift | 6 m |
| Connection | G 1″ |
| Maximum ambient temperature | 50 °C |
| Maximum liquid temperature | 40 °C |
| Liquid pH | 6.5–8.5 |
| Maximum system pressure | 10 bar |
| Enclosure protection | IPX4 |
| Overall dimensions | 392 × 160 × 315 mm (axis order unspecified) |
| Weight | 11 kg |
| Typical sound level | 47 dB(A) |
Protection functions include blocking, leakage, no-water, dry-running, overheating and over/undervoltage protection. Maximum head and flow are separate limits. Suction performance depends on installation conditions.
MAC550 hydraulic curve

Manufacturer-published MAC550 variable-speed performance: solid lines show head versus flow; dashed lines show electrical power versus flow. Select the required pressure setting. These are not simultaneous maximum-flow and maximum-head duty points.
MAC550 overall dimensions

| L | L1 | A | B | H | H1 | W |
|---|---|---|---|---|---|---|
| 396.5 | 108 | 155 | 166 | 324 | 145 | 191 |
Variant confirmation required: LEO’s global sheet states 392 × 160 × 315 mm without defining the axis order, while the European MAC550 drawing/table above gives L 396.5, H 324 and W 191 mm. These source dimensions are not interchangeable. Confirm the supplied pump’s outline, connection positions and installation clearances before fabrication or ordering.

