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Sub TWU 4.04-09-C (3~400 V, 50 Hz) | Wilo
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Sub TWU 4.04-09-C (3~400 V, 50 Hz)

Technical data
Tender text

Fully submersible, multistage submersible pump with radial or semi-axial impellers in sectional construction for vertical or horizontal installation, with built-in non-return valve. Corrosion-free single-phase or three-phase AC motor for direct starting with water-glycol filling. Hermetically sealed with enamel-insulated windings, resin-impregnated and self-lubricating bearings. The motor is cooled by the pumped fluid. Therefore, the unit must always be operated immersed. Horizontal installation must be performed in conjunction with a cooling jacket.

For pumping water out of boreholes with a maximum immersion depth of 200 m and a max. sand content of 50 g/m³.

Scope of delivery:

  • Hydraulics + motor completely assembled
  • Connection cable approved for drinking water
  • Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
  • Installation and operating instructions
Operating data
Max. delivery head Hmax 59.0 m
Minimum efficiency index (MEI) 0.7
Pipe connection on the discharge side DNd Rp 1¼
Maximum operating pressure p 40.0 bar
Max. sand content 50 g/m³
Protection class motor IP68
Max. immersion depth 200 m
Min. fluid temperature Tmin 3 °C
Max. fluid temperature Tmax 30 °C
Net weight, approx. m 12 kg
Dimensions Dmax 98 mm
Motor data
Mains connection 3~400 V, 50 Hz
Rated power P2 0.75 kW
Rated speed n 2840 1/min
Rated current IN 2.2 A
Activation type Direct (D)
Max. switching frequency t 20 1/h
Motor diameter DM 97 mm
Min. flow rate at the motor m/s 0.08 m/s
Connection cable length 1.8 m
Cable cross-section 4G1,5 mm²
Pump housing Stainless steel
Motor housing Stainless steel
Shaft Stainless steel
Impeller PPE
Ordering information
Net weight, approx. m 12 kg
Brand Wilo
Product description Sub TWU 4.04-09-C (3~400 V, 50 Hz)
Article number 6049350

Installation and operating instructions

Wilo-Sub TWU ..., TWU 4-...-QC, TWU 4-...-P&P

Article Number 2019023
Edition 1103
Page format A4
Number of pages 384
PDF (2 MB)

Wilo-Sub TWU ..., TWU 4-...-QC, TWU 4-...-P&P

Article Number 2019023
Edition 1103
Page format A4
Number of pages 30
PDF (565 KB)

Certificate REACH (Documents)

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)