Wilo-Rexa CUT

Special features/product advantages

  • High reliability through ATEX approval and longitudinally watertight cable inlet (CUT GE…)
  • High operational reliability through spherically-formed macerator with pulling cut
  • Long service life through a high-quality motor seal with two independent mechanical seals and optional pencil electrode for sealing chamber control

Series description

Design type

Submersible sewage pump with macerator for intermittent duty and continuous duty, for stationary and portable wet well installation.

Application

Pumping of

  • Sewage containing faeces in accordance with (DIN) EN 12050-1
  • Wastewater

Equipment/function

  • Macerator with internal or external blade and pulling cut
  • Winding temperature monitoring with bimetallic strip
  • ATEX approval (with motor version "P")
  • Optional external pencil electrode for the sealing chamber monitoring

Scope of delivery

  • Pump
  • 10 m connection cable with plug (single-phase version) or bare cable end (three-phase version)
  • Installation and operating instructions

Type key

Example:

Wilo-Rexa CUT GE03.26/P-T15-2-540X/P

Rexa

Submersible sewage pump with retrodynamic hydraulics

CUT

Series with macerator

GE

Hydraulics version:

GI = interior macerator

GE = external macerator

03

Nominal diameter pressure connection:

03 = DN 32

04 = DN 40

26

Zero-delivery head in m

P

Motor version:

S = stainless steel motor housing

P = cast iron housing

T

Mains connection version:

M = 1~

T = 3~

15

Value/10 = motor power P2 in kW

2

Number of poles

5

Frequency (5 = 50 Hz, 6 = 60 Hz)

40

Code for rated voltage

X

Ex-rated:

Without supplement = without Ex-approval

X = with Ex-approval

P

Additional electrical equipment:

Without addition = with bare cable end

P = with plug

Technical data

  • Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
  • Immersed operating mode: S1
  • Non-immersed operating mode CUT GI: S2-15 min; S3 10%
  • Non-immersed operating mode CUT GE: S2-30 min; S3 25%
  • Protection class: IP68
  • Insulation class: F (CUT GE: Optional H)
  • Fluid temperature: 3…40 °C, max. 60 °C for 3 min
  • Max. immersion depth: 20 m
  • Cable length: 10 m

Materials

  • Motor housing: 1.4301 (motor version “S”) or EN-GJL-250 (motor version “P”)
  • Hydraulic housing: EN-GJL-250
  • Impeller: EN-GJL-250
  • Shaft end: Stainless steel 1.4021
  • Macerator: interior blade = 1.4528; external blade = Abrasite/1.4034
  • Sealing on pump side: SiC/SiC
  • Sealing on motor side: C/MgSiO4
  • Static gaskets: NBR

Description/construction

Submersible sewage pump with internal or external macerator as submersible monobloc unit for stationary and portable wet well installation in intermittent and continuous duty.

Hydraulics

The outlet on the pressure side is designed as horizontal flange connection with a DN 32/40 combined connection. The maximum possible dry matter is 8 % (depending on the hydraulics) Single-channel and multi-channel impellers are used.

Motor

Single-phase and three-phase current surface-cooled motors for direct starting are used as the motors. The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent operation (S3).

The motors are equipped with a thermal winding monitor. This protects the motor windings against overheating. Bimetallic strips are used for this as standard. Motors in the P-version are also equipped with motor compartment monitoring. The humidity electrode signals water ingress into the motor compartment.

Furthermore, the motor can also be fitted with an external pencil electrode to monitor the sealing chamber. This signals if there is water ingress into the sealing chamber through the seal on the pump side.

The connection cable has a length of 10 m as standard and the single-phase version is equipped with a plug. The three-phase version has bare cable ends as standard and is cast as longitudinally watertight for P-version motors.

Seal

There is a sealing chamber between the motor and hydraulics. It is filled with medical white oil and protects the motor from media ingress by the seal on pump side. The pump-side and motor-side seals are provided by two mechanical seals which rotate independently of each other.

Duty chart

Rexa CUT GE… 50Hz

Rexa CUT GI… 50Hz

Downloads

Certification Booklet Wilo-Rexa CUT GI

Article Number 6072581
Edition 1605
Version number 04
Page format A4
Number of pages 4

PDF (223 kB)

Download

Certification Booklet Wilo-Rexa CUT GE

Article Number 6072580
Edition 1605
Version number 04
Page format A4
Number of pages 8

PDF (451 kB)

Download

General overview 2018 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 72

PDF (11 MB)

Download

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