4 inch Coverco NBS4 Single Phase Motor Franklin Electric

Coverco Single phase 4" submersible rewindable oil-filled motors for use in wells with diameters equal to or greater than 4".

NEW DESIGN

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

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 (Ball bearings have a theoretical service life).
• 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

Product advantages

• Stator in oil
• Cable material compliant with drinking water standards (with relative inspection)
• Sand protection and mechanical seal to allow for optimal operation even in the presence of sand in the well
• Excellent efficiency and low operating costs
• All motors are pre-filled with liquid and 100 % tested

Techincal Specifications

• Power range: 0.37 – 4.0 kW
• Flange: 4" NEMA
• Protection rating: IP68
• Number of starts per hour: max. 30
• Vertical and horizontal operation (prior authorisation)
• Rated voltage: Single-phase: 210-220-230 V / 50 Hz - 220-230 V / 60 Hz
• Voltage tolerance: ± 10 %
• Motor protection: thermal relays in compliance with EN 60947-4-1, trip class 10 or 10A, trip time < 10 s. at 5 x IN
• Insulation class: F
• Ambience temperature: 30 °C with 0.08 m/s cooling flow
• Cable dimensions: 4×1.5 mm2
• Standard motor cable length:
• 0,37 - 2,2kW: 1,5m
• 3,0 - 4,0kW: 2,5m
• Cooling flow rate: min. 0,08 m/sec.
• Water pH: 6.5-8
• Thrust load: 1500 N, 2500 N