Series description

Special features/product advantages

  • Long service life
  • Heavy-duty design
  • Slurping operation possible
  • Suitable for continuous duty (S1)
  • Ready-to-plug

Design type

Submersible drainage pump


Pumping of

  • Wastewater


  • Ready-to-plug
  • Thermal motor monitoring
  • Sheath current cooling (depending on type)
  • Connection cable detachable

Scope of delivery

Pump ready for connection with 10 m connecting cable (starting from KS 24, 20 m) and single-phase or three-phase current plug, Storz or GEKA solid coupling, 90° bend if necessary for implementation of vertical pressure outlet, installation and operating instructions.

Technical data

  • Mains connection: 1~230  V, 50 Hz or 3~400 V, 50 Hz
  • Protection class: IP 68
  • Max. submersion depth: 12.5 m
  • Fluid temperature: 3…40 °C
  • Cable length: 10 m/20 m
  • Free ball passage: 5…45 mm (depending on type)
  • Pressure port: G 1¼, G 2, G 2½, G 3, G 4 (depending on type)


  • Motor housing: aluminium or EN-GJL 250 (depending on type and version)
  • Pump housing: EN-GJL 250
  • Impeller: EN-GJL 250
  • Shaft: 1.4021
  • Sealing on motor side: mechanical seal in various material versions
  • Sealing on pump side: Mechanical seal SiC/SiC
  • Static gaskets: FPM


Submersible drainage pump as submersible monobloc unit for portable dry and wet well installation.


The outlet on the pressure side is designed as a horizontal or vertical threaded connection. On models with a horizontal pressure connection, a 90° elbow is attached to make a vertical outlet possible. Open channel impellers with free ball passage of 5…45 mm are used as the impellers.


Surface-cooling or self-cooling motors in single or three-phase versions are used, depending on the type. The self-cooling motors are filled with oil; the surface-cooling motors have thermal motor monitoring and sheath current cooling. The Ex-rated units KS 5, KS 6 and KS 16 are equipped with a surface-cooled motor without sheath current cooling. All models can be used both immersed and non-immersed, in continuous duty. This also permits slurping operation.

A sealing chamber protects the motor from fluid ingress. The filling fluid used is potentially biodegradable and environmentally safe.

The cable is detachable, the cable length is 10 m or 20 m. The S version is equipped with float switches. All models are equipped with plugs. The DMS versions are equipped with a switchgear with integrated motor protection.


Sealing on the fluid side and on the motor side is achieved by a bidirectional mechanical seal.

Duty chart

EMU KS , 50 Hz


Certification Booklet Wilo-EMU KS

Article Number 6080667
Edition 1606
Version number 01
Page format A4
Number of pages 8

PDF (331 kB)


General overview 2018 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 72

PDF (11 MB)





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