Wilo-Rexa MINI3-S
Efficient submersible sewage pump in non-clog design with macerator for house and site drainage for single and two-family houses.
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Description
The Wilo-Rexa MINI3-S grinder pump ensures safe house and site drainage. The compact design and the radial macerator with double shear effect allow you to safely drain small pump sumps, such as cesspools or catchment shafts. In addition, installation costs are reduced thanks to the use of the smallest-possible pipework. The high-quality motor has a double seal and is easy to maintain. The stainless steel motor housing is corrosion-resistant, even when non-immersed. Installation of the single-phase pumps is uncomplicated due to the low weight and the built-in plug: simply plug it into the existing socket. Pumps with an attached float switch start automatically. The pumps are switched on and off depending on the fill level.
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Advantages
- Excellent anti-clogging reliability due to radial macerator with double shear effect
- Optimised hydraulics/macerator combination for a wide coverage of delivery head at the lowest power requirement for domestic electrical installations
- Low overall installation costs thanks to the use of smallest possible piping
- Easy to use in domestic applications thanks to low weight.
- Long service life due to high-quality motor with double sealing
- High corrosion resistance, even with non-immersed motor, thanks to stainless-steel motor housing
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Technical Features
Design
Fully submersible grinder pump for stationary and portable wet installation in intermittent operation.
Liquid
For the pumping in domestic areas of:
- Sewage containing faeces
- Wastewater (with small amounts of sand)
Sewage pumping according to (DIN) EN 12050
The pumps meet the requirements of EN 12050-1.
Equipment/function
- Radial macerator with double shear effect
- Thermal motor monitoring with bimetallic strip
- Single-phase AC motor with self-switching thermal motor monitoring
- Connection cable in different versions:
- Version “P”: with plug
- Version “A”: with float switch and plug
- Version “O”: bare cable ends
- Single-phase AC motor with separate capacitor switchgear
Typekey
Example: Rexa MINI3-S03/M008-523/A Rexa Submersible sewage pump MINI3 Series S Macerator 03 Nominal diameter of the discharge connection: DN 32/40 M Mains connection version: - M = single-phase current (1~)
- T = three-phase current (3~)
008 Value/10 = rated power P in kW – Not Ex-rated 5 Mains frequency: 5 = 50 Hz/6 = 60 Hz 23 Rated voltage code A Additional electrical equipment: - O = with bare cable end
- P = with plug (CEE 7/7)
- A = with float switch and plug (CEE 7/7)
Technical Data
- Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
- Submerged operating mode: S1
- Non-immersed operating mode: S3 10%
- Protection class: IP68
- Insulation class: F
- Fluid temperature: 3 … +40 °C (37 … 104 °F)
Materials
- Hydraulics housing: EN-GJL-250 (ASTM A48 Class 35/40B)
- Impeller: EN-GJL-250 (ASTM A48 Class 35/40B)
- Macerator: 1.4528/59 HRC (AISI 440B+Co)
- Motor housing: 1.4301 (AISI 304)
- Seal:
- On the pump side: SiC/SiC (QQPGG)
- On the motor side: NBR
- Static: NBR
- Shaft end: 1.4401 (AISI 316)
Construction
Rexa MINI3-S … /M … /P
Sewage pump with radial macerator with double shear effect. Horizontal discharge port with flange and oval connection. Hydraulics housing and impeller made of grey cast iron; macerator made of hardened cutting steel. Surface-cooled 1~ motor with self-switching thermal motor monitoring. Oil-filled sealing chamber with two mechanical seals. Stainless steel motor housing. Detachable connection cable with capacitor box and plug (CEE 7/7).
Rexa MINI3-S … /M … /A
Sewage pump with radial macerator with double shear effect. Horizontal discharge port with flange and oval connection. Hydraulics housing and impeller made of grey cast iron; macerator made of hardened cutting steel. Surface-cooled 1~ motor with self-switching thermal motor monitoring. Oil-filled sealing chamber with two mechanical seals. Stainless steel motor housing. Detachable connection cable with capacitor box, float switch and plug (CEE 7/7).
Rexa MINI3-S … /T … /O
Sewage pump with radial macerator with double shear effect. Horizontal discharge port with flange and oval connection. Hydraulics housing and impeller made of grey cast iron; macerator made of hardened cutting steel. Surface-cooled 3~ motor with thermal motor monitoring. Oil-filled sealing chamber with two mechanical seals. Stainless steel motor housing. Detachable connection cable with bare cable ends.
Accessories
- Connection cable with fixed cable lengths:
- 1~ motor: up to max. 30 m (98 ft).
- 3~ motor: up to max. 50 m (164 ft).
- Suspension unit for wet well installation
- Fixation accessories and chains
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Downloads
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