New design of Coverco 4 inch rewindable oil-filled motor

04/01/2024

2024 01 New Design Of Coverco 4 Inch Oil Filled Motor EN

We are glad to present an upgrade of our rewindable, oil-filled 4-inch Coverco motor. The design has been further developed to make it even more reliable and resilient. The design is more compact with excellent performance.

  •      Reliable and resilient construction
  •      New modernized winding design
  •      Robust mechanical design
  •      Excellent performance
  •      Reduction of plastic parts
  •      Suitable for VFD operation
  •      Flexibility of power supply, even at low voltages

The motor will continue to be produced in consistently high quality at our plant in Brno/Czech Republic.
The Low Thrust version up to 2.2 kW can be ordered from 31.01.2024, available from 31.03.2024.

Features & Benefits:

  • Motors are pre-filled with a dielectric fluid (known as „white oil“), approved by the FDA and other international pharmacological institutes.
  • The motors can be powered with single-phase and three-phase power supply.
  • Reliable operation in wells with diameters of ≥ 4" for water up to 30 °C
  • Axial and radial oil lubricated bearings allow maintenance-free operation. *
  • Cable material compliant with drinking water standards
  • Sand protection / Mechanical seal allow optimal operation even in the presence of sand in the well
  • Excellent efficiency and low operating costs

Technical Data:

  • Ratings: Low Thrust 0.37 – 2.2 kW
  • 4" NEMA mounting design
  • Protection IP68 and insulation class F
  • Frequency of starts: 30 starts/hour
  • Vertical and horizontal operation
  • Suitable for VFD operation (230 V, without filter)
  • Voltage: Single-phase: 210-220-230 V / 50 Hz - 220-230 V / 60 Hz
    Three-phase: 230-230 V / 50 Hz - 380-415 V / 50 Hz - 460 V / 60 Hz - 220-230 V / 60 Hz - 380 V / 60 Hz
  • Voltage tolerance: UN +6% / -10%
  • Motor protection: thermal relays in compliance with EN 60947-4-1, trip class 10 or 10 A, trip time < 10 s. at 5 x IN
  • Nominal ambient temperature: 30 °C with 0.08 m/s cooling flow
  • Cable dimensions: 4 x 1.5 mm²
  • Water pH: 6.5 - 8
  • Thrust load Low Thrust: 1500 N, 2500 N

 

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