Sub TWU4.16-08-C (3~400 V, 50 Hz) | Wilo
Similar to figure

Sub TWU4.16-08-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
Fluid media
Max. delivery head Hmax
34.2 m
Minimum efficiency index (MEI)
Pipe connection on the discharge side DNd
Rp 2
Maximum operating pressure p
40.0 bar
Max. sand content
50 g/m³
Protection class motor
Max. immersion depth
200 m
Min. fluid temperature Tmin
3 °C
Max. fluid temperature Tmax
30 °C
Net weight, approx. m
18 kg
Dimensions Dmax
98 mm
Motor data
Mains connection
3~400 V, 50 Hz
Rated power P2
1.5 kW
Rated speed n
2830 1/min
Rated current IN
3.9 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
Stainless steel
Ordering information
Net weight, approx. m
18 kg
Product description
Sub TWU4.16-08-C (3~400 V, 50 Hz)
Article number

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 2020-08
Page format 209.9 x 297.0 mm
Number of pages 2
PDF (158 KB)