Wilo-Sub TWU 3 Plug & Pump

Series description


Water-supply unit with submersible-motor pump, control and complete accessories.


Water-supply unit for

  • Water supply from boreholes, wells and rainwater storage
  • Domestic water supply, sprinkling and irrigation
  • For pumping water without long-fibre and abrasive constituents

Type key

E.g.Wilo-Sub TWU 3-0115-P&P/FC
TWUSubmersible pump
3Diameter of the hydraulic unit in inches ["]
01Rated volume flow [m3/h]
15Number of hydraulic stages
P&PPlug & Pump system
FC = Sub I package with HiControl 1
DS = Sub II package with pressure switching

Special features/product advantages

  • Easy installation due to preinstalled and pre-wired components
  • Parts that come in contact with fluids are corrosion-free
  • Integrated non-return valve

Technical data

  • Mains connection: 1~230 V, 50 Hz
  • Immersed operating mode: S1
  • Fluid temperature: 3-35 °C
  • Minimum flow rate at motor: 0.08 m/s
  • Max. sand content: 50 g/m3
  • Max. number of starts: 30 /h
  • Max. immersion depth: 27 m
  • Protection class: IP 58
  • Pressure connection: Rp 1


  • Multistage submersible-motor pump with radial impellers
  • Integrated non-return valve
  • NEMA coupling
  • Single-phase motor
  • Thermal motor protection


  • Hydraulic housing: 1.4301 stainless steel
  • Impellers: polycarbonate
  • Hydraulics shaft: 1.4104 stainless steel
  • Motor housing: 1.4301 stainless steel
  • Motor shaft: 1.4305 stainless steel


Submersible-motor pump for vertical or horizontal installation.


Multistage submersible-motor pump with radial impellers with sectional construction. Integrated non-return valve. All parts in contact with the fluid are made of corrosion-free materials.


Corrosion-free single-phase motor for direct starting, rewindable, oil-filled, self-lubricating bearings.


The motor is cooled by the fluid. The motor must always be immersed when operated. The limit values for maximum fluid temperature and minimum flow velocity must be adhered to. Vertical installation is possible with or without cooling jacket. Cooling jacket is required for horizontal installation.


  • No suction mode is possible with these units!
  • The unit must be fully immersed in water during operation.

Scope of delivery

Wilo Plug & Pump Sub‐I package for garden irrigation of private greenery in the domestic sector:

  • Fully mounted
  • 30 m connection cable approved for drinking water (cross-section: 4x1.5 mm2)
  • Switchbox with capacitor, thermal motor protection and On/Off switch
  • Wilo-HiControl 1 (FC); automatic flow monitor and pressure controller with integrated dry-running protection
  • 30 m guy cable
  • Installation and operating instructions

Wilo Plug & Pump Sub‐II package for self-sufficient water supply in single-family and multi-family houses:

  • Fully mounted
  • 30 m connection cable approved for drinking water (cross-section: 4x1.5 mm2)
  • Switchbox with capacitor, thermal motor protection and On/Off switch
  • Wilo pressure switching 0 – 10 bar, including 18 l diaphragm expansion tank, manometer, shut-off device and pressure switch
  • 30 m guy cable
  • Installation and operating instructions


  • Motor versions for 3~230 V, 50 Hz; 1~230 V, 60 Hz; 3~380 V, 60 Hz

Duty chart

Duty chart



NEMA connection

Standardised connection


Integrated non-return valve

Without non-return valve


AC motor

Three-phase motor


Direct activation

Star-delta activation


FC operation

Motor with cast stator


Rewindable motor

Oil motor filling

Water-glycol motor filling


Drinking water motor filling


Hydraulics/motor preassembled


Horizontal installation

Vertical installation


Motor temperature monitoring, PT100


PTC motor temperature monitoring


Capacitor box for 1~230 V

Dry-running protection


Integrated lightning protection



Bearing brackets for horizontal installation


Cooling jacket


Non-return valve


Pressure shroud



Pump housing

Stainless steel

Pump housing (special version)



Impeller (special version)

Motor housing

Stainless steel

Motor housing (special version)


Certification Booklet Wilo-Sub TWU 3

Article Number 6080452
Edition 1608
Version number 01
Page format A4
Number of pages 11

PDF (514 kB)


General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)


Wilo-Sub TWU 3…, TWU 3-…-P&P

Article Number 2059966
Edition 1110
Version number 02
Page format A4
Number of pages 28

PDF (554 kB)



PDF: Wilo-Sub TWU 3 Plug & Pump


Page selection

Format selection

Optional information

You can enter any personal information that you want to be displayed in the header.