Products
LEO 4XR3/52-4
LEO 4XR3/52-4 submersible borehole pump
For water supply from wells or reservoirs, domestic and industrial water transfer, and irrigation. Range photograph shown; confirm the supplied pump, motor and control equipment.
Model specifications
| Rated motor output | 4 kW |
|---|---|
| Supply | Three-phase 380–415 V, 50 Hz |
| Performance table reference speed | Approximately 2850 rpm |
Individual hydraulic curve and dimensional reference
The curve joins the exact published local hydraulic table points by straight lines. No performance outside those points is assumed. Shut-off head is not the operating duty; select against required flow and total dynamic head.
Published hydraulic points
| Flow (m³/h) | Head (m) |
|---|---|
| 0 | 364 |
| 0.6 | 352 |
| 1.2 | 341 |
| 1.8 | 331 |
| 2.4 | 309 |
| 3 | 274 |
| 3.6 | 225 |
| 4.2 | 170 |
| 4.8 | 100 |
Model dimensions and connections
| P - pump length | 1745 mm |
|---|---|
| M(t) - three-phase motor length | 629 mm |
| T(t) - overall length | 2374 mm |
| Standard outlet DN | 1¼ inch |
| Optional outlet DN | 1½ inch; confirm selected outlet |
Dimensions are the LEO European three-phase reference for this model. Confirm the supplied motor, outlet, cable length, control-box configuration and assembly clearance before installation; regional assemblies may differ. Manufacturer outline is not to scale.
Operating conditions
Published range limits: maximum liquid temperature 35°C; maximum sand content 0.25%; maximum immersion 150 m, subject to the supplied assembly and installation. Four-inch borehole family: check actual casing clearance against the pump, cable and joints. The range sheet specifies IP68 enclosure and class F insulation. Confirm appropriate motor protection and control equipment.