Grundfos 98924591 45S50-12 4-inch submersible well pump with 12 stages, 3.7 kW (5 HP) motor, 3-phase 440-460V, 60 Hz. Rated flow 10.7 m³/h, head 89 m, 2" NPT discharge. Stainless steel pump, motor, and impellers. MS4000 motor, IP68 enclosure, external thermal protection, 3460-3470 RPM. For groundwater supply and irrigation.

Actual impeller diameter

72.9 mm

Applic motor

NEMA

Approvals

CE,EAC,CSA

Axial load max

450 kg

Built-in temp transmitter

No

Cos phi - power factor

0.83-0.80

Curve tolerance

2012 3B

Density

998.2 kg/m³

DOE pump energy index CL

0.84

Enclosure class (IEC 34-5)

IP68

ErP status

EuP Standalone/Prod.

Impeller

Stainless steel

Insulation class (IEC 85)

F

KVA code

J

Mains frequency

60 Hz

Maximum ambient pressure (bar)

60

Maximum liquid temperature (°C)

40

Model

A

Motor

Stainless steel

Motor diameter

4 in

Motor no

96405811

Motor type

MS4000

Motor version

T40

Product name

45S50-12

Product no

98924591

Pump

Stainless steel

Pump outlet

2 in NPT

Pump speed on which pump data are based

3450 rpm

Pumped liquid

Water

Rated current

8.65-8.65 A

Rated flow

10.7 m³/h

Rated head

89 m

Rated power - P2

3.7 kW

Rated speed

3460-3470 RPM

Rated voltage

3 x 440-460 V

Selected liquid temperature (°C)

20

Service factor

1.15

Shaft seal for motor

HM/CER

Stages

12

Starting current

550-590 %

Thermal protec

external

Valve

YES

Windings

Enamelled