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Sub TWI 4.02-09-D (1~230 V, 50 Hz) | Wilo
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Sub TWI 4.02-09-D (1~230 V, 50 Hz)

Technical data
Tender text

Fully submersible, multistage pump for pumping industrial and drinking water (ACS rating) 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 cast 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. The limit values for maximum fluid temperature and minimum flow velocity must be adhered to. Vertical installation is possible with or without cooling jacket. In cases of horizontal installation, a cooling jacket must always be provided .

Scope of delivery:

  • Submersible pump with connection cable and ACS rating
  • Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
  • Installation and operating instructions
Operating data
Max. delivery head Hmax 50.7 m
Minimum efficiency index (MEI) 0.4
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 350 m
Min. fluid temperature Tmin 3 °C
Max. fluid temperature Tmax 30 °C
Net weight, approx. m 11 kg
Dimensions Dmax 98 mm
Motor data
Mains connection 1~230 V, 50 Hz
Rated power P2 0.55 kW
Rated speed n 2850 1/min
Rated current IN 4.05 A
Activation type Direct (D)
Max. switching frequency t 20 1/h
Motor diameter DM 98 mm
Min. flow rate at the motor m/s 0.08 m/s
Connection cable length 1.5 m
Cable cross-section 3x1,5+1G1,5 mm²
Pump housing Stainless steel
Motor housing Stainless steel
Shaft Stainless steel
Impeller Stainless steel
Ordering information
Net weight, approx. m 11 kg
Brand Wilo
Product description Sub TWI 4.02-09-D (1~230 V, 50 Hz)
Article number 6091315

Installation and operating instructions

Wilo-Sub TWI 4..., TWI 4-...-QC

Article Number 6061724
Edition 1110
Page format A4
Number of pages 344
PDF (2 MB)

Wilo-Sub TWI 4..., TWI 4-...-QC

Article Number 6061724
Edition 1110
Page format A4
Number of pages 28
PDF (516 KB)

Certificate REACH (Documents)

REACH Regulation

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