Data sheet
| Hydraulic data | |
|---|---|
| Maximum operating pressure PN | 10 bar |
| Max. sand content | 50 g/m³ |
| Max. immersion depth | 17 m |
| Min. fluid temperature Tmin | 5 °C |
| Max. fluid temperature Tmax | 40 °C |
| Motor data | |
|---|---|
| Mains connection | 1~230 V, 50 Hz |
| Rated power P2 | 0.55 kW |
| Rated speed n | 2810 1/min |
| Rated current IN | 4.5 A |
| Starting current I | 20.25 A |
| Activation type | Direct On Line (DOL) |
| Power factor cos φ100 | 0.91 |
| Max. switching frequency t | 40 rph |
| Protection class motor | IP68 |
| Motor diameter DM | 127 mm |
| Cable | |
|---|---|
| Connection cable length L | 20 m |
| Cable cross-section | 4G1 |
| Materials | |
|---|---|
| Pump housing | Stainless steel |
| Impeller | Stainless steel |
| Shaft | Stainless steel |
| Motor housing | Stainless steel |
| Installation dimensions | |
|---|---|
| Pipe connection, discharge side DNd | Rp 1¼ |
Pump curves
Dimensions and dimensions drawings
4144935_ConGraph_twi_5__dim_01_0702
Ordering information
| Product data | |
|---|---|
| Brand | Wilo |
| Product description | Sub TWI 5-304EM-FS |
| Article number | 4144935 |
| EAN number | 4048482106403 |
| Colour | Silver |
| Minimum order quantity | 1 |
| Date of sales availability | 2010-03-01 |
| Packaging | |
|---|---|
| Packaging type | Cardboard box |
| Packaging property | Sales packaging |
| Pieces per pallet | 1 |
| Number per layer | 1 |
| Dimension, weight | |
|---|---|
| Length with packaging | 790 mm |
| Length L | 129 mm |
| Height with packaging | 195 mm |
| Height H | 480 mm |
| Width with packaging | 230 mm |
| Width W | 129 mm |
| Gross weight, approx. m | 17.2 kg |
| Net weight, approx. m | 15.2 kg |
Multistage, self-venting, fully submersible pump with standard suction strainer for submerged installation above the tank/rainwater storage tank bottom.
For pumping clean water from tanks, rainwater storage tanks or wells up to an immersion depth of 17 m. All parts that come into contact with fluid are corrosion-proof.
Pump in single-phase current version with integrated float switch (FS) connection cable, switchbox (IP55) with thermal motor protection, ON/OFF switch, as well as 2 m connection cable with earthed plug.
Scope of delivery
- Pump with 20 m connection cable from the pump to the switchbox and 2 m connection cable with mains plug outward bound from the switchbox
- Safety rope made of polypropylene (20 m, Ø 5 mm)
- Installation and operating instructions
| Operating data | |
|---|---|
| Max. delivery head Hmax | 44.4 m |
| Unit | |
|---|---|
| Pipe connection, discharge side DNd | Rp 1¼ |
| Maximum operating pressure p | 10.0 bar |
| Max. sand content | 50 g/m³ |
| Protection class motor | IP68 |
| Max. immersion depth | 17 m |
| Min. fluid temperature Tmin | 5 °C |
| Max. fluid temperature Tmax | 40 °C |
| Net weight, approx. m | 15.2 kg |
| Max. diameter Dmax | 129 mm |
| Motor data | |
|---|---|
| Motor design | Submersible motor |
| Mains connection | 1~230 V, 50 Hz |
| Rated power P2 | 0.55 kW |
| Rated speed n | 2810 1/min |
| Rated current IN | 4.5 A |
| Activation type | Direct On Line (DOL) |
| Max. switching frequency t | 40 rph |
| Motor diameter DM | 127 mm |
| Cable | |
|---|---|
| Connection cable length L | 20 m |
| Cable cross-section | 4G1 |
| Materials | |
|---|---|
| Pump housing | Stainless steel |
| Motor housing | Stainless steel |
| Shaft | Stainless steel |
| Impeller | Stainless steel |
| Ordering information | |
|---|---|
| Net weight, approx. m | 15.2 kg |
| Brand | Wilo |
| Product description | Sub TWI 5-304EM-FS |
| Article number | 4144935 |
Filtered by
Document type
Language
Datasheet and documentation
Installation and operating instructions
Wilo-TWI 5, Wilo-TWI 5-SE
| Article Number | 4104146 |
| Issue date | 2026-06 |
| Edition | 07 |
| Language | cs, da, de, el, en, es, fr, it, lt, nl, pl, pt, ru, sv, tr, uk |
Group Statement
Group Statement REACH
| Issue date | 2021-05 |
| References | REACH |
| Certification and inspection body | Self Declaration |
| Issue date | 2026-04-17 |
| Language | language neutral |
Installation type
Pressure and flow controller (3) | |||
Wall bracket for Wilo-HiControl and Wilo-FluidControl | |||
Wall bracket for Wilo-FluidControl | 4027326 | ||
HiControl 1 | |||
HiControl 1 | 4190896 | ||
HiControl 1-EK | 4190895 | ||
Pressure control with fault signal (2) | |||
Pressure switch WVA | |||
Pressure switch WVA up to 6 bar | 180492096 | ||
Pressure switch WVA up to 10 bar | 2502050 | ||
Level control without fault signal (6) | |||
Switchgear BE-WP | |||
BE-WP-1x16A-MT34-DOL | 4261867 | ||
BE-WP-1x25A-MT34-DOL | 4261868 | ||
Float switch WAO | |||
Float switch WAO 65, 5 m cable | 503211595 | ||
Float switch WAO 65, 10 m cable | 2006027 | ||
Float switch WAO 65, 20 m cable | 2004429 | ||
Float switch WAO 65, 30 m cable | 2004430 | ||
Pressure control without fault signal (4) | |||
Switchgear BE-WP | |||
BE-WP-1x16A-MT34-DOL | 4261867 | ||
BE-WP-1x25A-MT34-DOL | 4261868 | ||
Pressure switch WVA | |||
Pressure switch WVA up to 6 bar | 180492096 | ||
Pressure switch WVA up to 10 bar | 2502050 | ||
Mechanical accessories
Valves (2) | |||
Shut-off valve | |||
Ball valve Rp 1¼ | 2663979 | ||
Non-return valve | |||
Non-return valve RV/S R 1¼ | 2660840 | ||
Hoses / hose joints (5) | |||
Suction/pressure hose kit | |||
Suction/pressure hose 1¼" SE, PN 10, 1.5 m (cpl.) | 2025973 | ||
Suction/pressure hose 1¼" SE, PN 10, 3.0 m (cpl.) | 2025974 | ||
Suction/pressure hose 1¼" SE, PN 10, 5.0 m (cpl.) | 2025975 | ||
Suction/pressure hose 1¼" SE, PN 10, 10.0 m (cpl.) | 2025976 | ||
Suction/pressure hose 1¼" SE, PN 10, 15.0 m (cpl.) | 2025977 | ||
Installation/setup (1) | |||
Marking set for rainwater utilisation | |||
Marking set for rainwater utilisation | 2518362 | ||
Suction filter (4) | |||
Coarse suction filter (floating extractor) | |||
Coarse suction filter G | 2024959 | ||
Coarse suction filter GR | 2024960 | ||
Fine suction filter (floating extractor) | |||
Fine suction filter F | 2024961 | ||
Fine suction filter FR | 2024962 | ||
Wall fixation/installation on a base (1) | |||
Wall bracket for Wilo-HiControl and Wilo-FluidControl | |||
Wall bracket for Wilo-FluidControl | 4027326 | ||
Electrical accessories
Pump control (7) | |||
HiControl 1 | |||
HiControl 1-EK | 4190895 | ||
HiControl 1 | 4190896 | ||
Electronic control | |||
ElectronicControl MM5 | 4160333 | ||
Wilo-Control EC-WP | |||
Control EC-WP-1x12A-MT34-DOL-WM | 2552324 | ||
Control EC-WP-2x12A-MT34-DOL-WM | 2552326 | ||
Switchgear BE-WP | |||
BE-WP-1x16A-MT34-DOL | 4261867 | ||
BE-WP-1x25A-MT34-DOL | 4261868 | ||
Pressure control (9) | |||
Pressure sensor for systems | |||
Pressure sensor, 0 - 6 bar | 2550660 | ||
Pressure sensor, 0 - 10 bar | 2550661 | ||
Pressure sensor, 0 - 16 bar | 2550662 | ||
Pressure sensor, 0 - 25 bar | 2550663 | ||
Pressure sensor, 0 - 40 bar | 2550664 | ||
Pressure switching | |||
Pressure switching 0 – 16 bar | 2501639 | ||
Pressure switch WVA | |||
Pressure switch WVA up to 6 bar | 180492096 | ||
Pressure switch WVA up to 10 bar | 2502050 | ||
Sensor kit | |||
Sensor kit | 2501886 | ||
Break tank/accessories (5) | |||
Automatic kit | |||
Automatic kit R ½, 5 m cable | 180493296 | ||
Automatic kit R ½, 20 m cable | 2005645 | ||
Automatic kit R 1, 5 m cable | 180549795 | ||
Automatic kit R 1, 20 m cable | 2007158 | ||
Level indicator AF 400 | |||
Level indicator AF 400 | 2512862 | ||
Level control (22) | |||
Float switch WA | |||
Float switch WA65 with 5 m cable | 503211390 | ||
Float switch WA65 with 10 m cable | 503211893 | ||
Float switch WA65 with 20 m cable | 2004431 | ||
Float switch WA65 with 30 m cable | 2004432 | ||
Float switch WA KR1 S with 5 m cable | 6082806 | ||
Float switch WA KR1 S with 10 m cable | 6082807 | ||
Submersible electrode | |||
Submersible electrode, 3 m | 500183799 | ||
Submersible electrode, 4 m | 2516278 | ||
Submersible electrode, 5 m | 500937990 | ||
Submersible electrode, 10 m | 2501937 | ||
Submersible electrode, 20 m | 2516283 | ||
Submersible electrode, 25 m | 2000601 | ||
Submersible electrode, 30 m | 2514045 | ||
Submersible electrode, 35 m | 2516284 | ||
Submersible electrode, 40 m | 2516285 | ||
Submersible electrode, 50 m | 2500315 | ||
Submersible electrode without cable | 64873 | ||
Electrode cable H07RN-F 1x1.5 mm² | 64904 | ||
Float switch WAO | |||
Float switch WAO 65, 5 m cable | 503211595 | ||
Float switch WAO 65, 10 m cable | 2006027 | ||
Float switch WAO 65, 20 m cable | 2004429 | ||
Float switch WAO 65, 30 m cable | 2004430 | ||
With Wilo as your partner, you can not only be sure of choosing high-quality product solutions, but also of benefiting from a comprehensive, worry-free package of well thought-out services. We collaborate to develop a service concept tailored to your individual needs; with our expertise and personal consultancy, we make sure that the operation of your systems is as energy-efficient, reliable and economical as possible. All the while our competent Wilo service technicians are ready to assist you with fast, reliable and on-time support.
Read moreExtended Warranty | |||
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Installation | |||
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Commissioning | |||
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Maintenance | |||
Maintenance BASIC borehole/submersible pump TWU/TWI 3"-5" | 2219537 | ||
Maintenance COMFORTborehole/submersible pump TWU/TWI 3"-5" | 2219499 | ||
Maintenance PREMIUM borehole/submersible pump TWU/TWI 3"-5" | 2219552 | ||
System Optimisation | |||
System Optimisation borehole/submersible pump TWU/TWI 3"-5" | 2219261 | ||
Energy Solutions | |||
Energy Solutions borehole/submersible pump TWU/TWI 3"-5" | 2219296 | ||
Repairs | |||
Repair borehole/submersible pump TWU/TWI 3"-5" | 2219620 | ||
