Grundfos 91530585 10S50-58 is a 4-inch submersible well pump with 58 stages, rated for 2 m³/h at 339 m head. It features a stainless steel pump and motor, 3.7 kW (approx. 5 HP) power, 3-phase 208-230V, 60 Hz, and a 1-1/4" NPT outlet. The motor is a Grundfos MS4000 with IP58 enclosure, external thermal protection, and direct-on-line start.

Applic motor

Grundfos

Approvals

CE,GOST2,CSA

Axial load max

450 kg

Built-in temp transmitter

No

Cos phi - power factor

0.87-0.78

Curve tolerance

2012 3B

Density

998.2 kg/m³

Enclosure class (IEC 34-5)

IP58

ErP status

EuP Standalone/Prod.

Impeller

Stainless steel

Insulation class (IEC 85)

F

Mains frequency

60 Hz

Maximum ambient pressure (bar)

60

Maximum liquid temperature (°C)

60

Model

A

Motor

Stainless steel

Motor diameter

4 in

Motor no

79304509

Motor type

MS4000

Power (P2) required by pump

4 kW

Product name

10S50-58

Product no

91530585

Pump

Stainless steel

Pump no

09310058

Pump outlet

1 1/4 in NPT

Pump speed on which pump data are based

3450 rpm

Pumped liquid

Water

Rated current

18.6-17.4 A

Rated flow

2 m³/h

Rated head

339 m

Rated power - P2

3.7 kW

Rated speed

3425-3470 RPM

Rated voltage

3 x 208-230 V

Sales region

Namreg

Selected liquid temperature (°C)

20

Service factor

1.15

Shaft seal for motor

HM/CER

Specification for shaft end

CYLINDRICAL

Stages

58

Start method

direct-on-line

Starting current

490-590 %

Thermal protec

external

Valve

YES