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Wilo-Isar BOOST5 | Wilo

Wilo-Isar BOOST5

Our solution for optimum water pressure. Wherever and whenever.

Your advantages
Wilo-Isar BOOST5

Our solution for optimum water pressure. Wherever and whenever.

The new Wilo-Isar BOOST5 for domestic water supply always delivers constant water pressure at all extraction points. Thanks to its highly efficient hydraulics and noise blocking covers, the system runs smoothly and quietly. With its compact, modern design, it fits perfectly into the customer’s environment. Furthermore, its high-efficiency hydraulics make it an energy-efficient and cost-effective system. The Wilo-Isar BOOST5 system offers even greater user convenience: thanks to the ready-to-plug design, the system is easy to install. The LEDs and simple button control means that the Wilo-Isar BOOST5 is user-friendly and simple to operate. Comprehensive built-in protection features guarantee safe operation. The system is made of corrosion-resistant technopolymer, which guarantees a long service life.

Recommended services

Your advantages

  • Easy installation, thanks to ready-to-plug design
  • Perfect integration into the customer environment owing to compact and modern design
  • User-friendly operation due to LED display and push buttons
  • Low-noise operation thanks to noise-blocking covers
  • Built-in frequency converter for a comfortable constant pressure control and a soft start
  • Low power consumption thanks to needs-based supply
  • Safe operation thanks to extensive integrated protection functions
Series description
Wilo-Isar BOOST5


Plug & Pump self-priming multistage centrifugal home booster


  • Water supply
  • Irrigation
  • Rainwater utilisation
  • Raw water intake


  • Directly flanged motor
  • Thermal motor protection switch
  • Embedded variable speed
  • Integrated protection functions (dry-running, over-pressure and excessive temperature detection, overcurrent, over- and undervoltage)



Wilo-Isar BOOST5-E-3


Product code of the pressure-boosting system


Pressure-boosting in domestic application


System execution with integrated pump control


Electronically controlled


Nominal flow m³/h

Technical data

  • Mains connection: 1~230 V, 50/60 Hz
  • Perm. fluid temperature: 0 °C to +40 °C
  • Perm. ambient temperature: 0 °C to +40 °C
  • Max. permissible operating pressure: 10 bar
  • Max. suction head: 8 m
  • Protection class: IP X4
  • Suction side connection: G 1"
  • Connection on pressure side: G 1"

Scope of delivery

  • Pump
  • Installation and operating manual
  • Set of spare O-rings
  • Easy installation tool

Installation and operating instructions

Wilo-Isar BOOST5

Article Number 4264436
Edition 2023-10
Number of pages 4
Language ar, bg, cs, de, el, en, es, fi, fr, it, nl, pt, ru, tr, uk, zh
PDF (1 MB)


Article Number 4246173
Edition 2024-05
Number of pages 24
Language en
PDF (5 MB)

Certification booklet

Wilo-Isar BOOST5

Article Number 4251855
Edition 2022-04
Number of pages 20
Language language neutral
PDF (10 MB)


Wilo-Isar BOOST5

Number of pages 20
Language en
PDF (3 MB)
Product selection
Product descriptionArticle number
Isar BOOST5-E-3
Isar BOOST5-E-5