Wilo-Rexa MINI3

Wilo-Rexa MINI3 - Reliable Pump for Dirty Water and Wastewater

The Wilo-Rexa MINI3 is the ideal standard submersible pump for house and grounds drainage and groundwater disposal. It is ideal for transporting contaminated water and fecal-free wastewater, and in the sump-mounted version of the DrainLift WS 50, it allows pumping wastewater containing fecal matter (according to EN 12050-1 certification). The optimized hydraulic system guarantees high reliability for universal use, even in narrow drainage sumps. A large sealing chamber with double seals enables long maintenance intervals, and direct access to key components simplifies service work.

Benefits

• High efficiency and reliable operation thanks to an optimized hydraulic system
• Easy installation in narrow drainage wells thanks to compact design and light weight
• Reliable operation during drainage due to corrosion-protected impeller and enlarged cable entry
• Long maintenance intervals thanks to capacious double-sealed seal chamber
• Quick maintenance thanks to direct access to the seal and pump casing
• Environmentally friendly thanks to efficient design and optimized hydraulics, reducing unscheduled service visits

Type of Design

The Wilo-Rexa MINI3 submersible pump is designed for wet setting - both in stationary and portable versions. It operates in intermittent mode, making it ideal for house drainage and groundwater disposal.

Liquids

Designed for domestic pumping:

• Sewage without fecal matter
• Contaminated water (with a small amount of sand and gravel)

Recommendation: When installed in the DrainLift WS 50 sump, it is possible to pump wastewater containing fecal matter (according to EN 12050-1).

Equipment / Features

• Self-activating thermal motor control
• Single-phase AC motor with integrated capacitor
• Built-in float switch (version A)

Type designation

Example: Wilo-Rexa MINI3-V04.11/M06-523/A-5M

• Rexa submersible sewage pump
• MINI3 - series
• V - free-flow impeller
• 04 - nominal diameter of discharge connection (e.g. G 1½ IG)
• 11 - maximum head [m]
• M - version of mains connection (single-phase)
• 06 - rated motor power (value/10 in kW)
• 5 - current frequency (50 Hz)
• 23 - key to rated voltage
• A - electrical accessory (pump with plug and float switch)
• 5M - length of power cable (5 m)

Technical Data

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Type of operation - submerged: S1
• Type of operation - submerged: S3 20%
• Degree of protection: IP68
• Insulation class: F
• Temperature of pumped liquid: 3 ... 40°C (37 ... 104°F)

Materials

• Hydraulic body: EN-GJL-200 gray cast iron (ASTM A48 Class 30)
• Impeller: Composite material (PK-GF30)
• Cover plate at suction port: Stainless steel
• Motor body: 1.4301 (AISI 304)
• Pump side seal: C/MgSi (BXPFF)
• Motor side seal and static seals: NBR
• Shaft end: 1.4301 (AISI 304)

Design

The Wilo-Rexa MINI3 is a submersible sewage pump with a free-flow impeller and vertical threaded connection. The hydraulic body is made of gray cast iron and the impeller is made of plastic. The 1~ motor is surface-cooled, equipped with an integrated capacitor and automatic thermal control. The motor body is made of stainless steel. The seal chamber is filled with oil and has a double seal - a shaft seal ring is installed on the motor side, and a mechanical seal is used on the pump side. The pump is equipped with a detachable power cable with a built-in plug (CEE 7/7).

Scope of Delivery

• Wilo-Rexa MINI3 pump
• Installation and operating instructions

With its optimized hydraulics, compact design and reliable safety features, the Wilo-Rexa MINI3 is the ideal solution for home drainage, groundwater drainage and sewage pumping in a domestic environment. Check out the full range at sps24.eu - your source for professional plumbing solutions.