4OYM / 4OYT

Summary

Product identification

• Product Line: 4OY / 4OYT
• Description: 4” Oil Filled Submersible Motors
• Manufacturer: EBARA Pumps Europe S.p.A.

Technical Characteristics

• Construction Materials:
  • Jacket, shaft, and bottom patch: Stainless steel
  • Upper bracket: High resistance nickel cast iron
  • Optional upper bracket materials: Printed brass alloy, microcast stainless steel AISI 304/316
• Bearings: Axial and radial bearings
• Mechanical Seal: Carbon/Ceramic (Option: SiC)
• Cooling: Cooling liquid with high lubricating performance that allows high reliability of components and high motor response for overloads.
• Protection: Compensation diaphragm and sand protection properly sized according to pump size.
• Cable: Extractable connection cable
• Maintenance: Rewindable
• Connection: Standard NEMA connection

Operating limits

• Maximum voltage variation from nominal: ±10%
• Maximum ambient temperature: 35°C with minimum cooling flow rate 0.08 m/sec
• Maximum starts/hr: 30
• Axial thrust:
  • 1500 N from 0.37 kW up to 2.2 kW
  • 2500 N from 2.2 kW up to 5.5 kW
  • 5000 N from 2.2 kW up to 5.5 kW
  • 4400 N from 2.2 kW up to 7.5 kW
• Maximum installation depth: 150 m
• Horizontal operation: Allowed up to 5.5 kW
• Insulation class: F
• Protection degree: IP 58

Electrical

• Performance Data (50Hz):
  • Available for single phase 230V (4OYM) and three phase 230V/400V (4OYT) models.
  • Key parameters include: P2 (kW, HP), In (Amp), Istart (Amp), Imax (Amp), rpm, Cosφ, Ts/Tn, Eff%. Single phase models also list µF.
  • See the official PDF for exact tabulated values for specific models.
• Cable Selection:
  • Tables provide guidance for selecting appropriate cable cross-sections (e.g., 4x1, 4x1.5, 4x2.5 mm²) based on motor power (HP/kW), voltage (230V single phase, 400V three phase), and cable length.
  • See the official PDF for exact tabulated values.

Mechanical / hydraulic

• Dimensions:
  • Overall height (H) and weight vary by model.
  • Key diameters: Ø 93, Ø 87, Ø 32.
  • Other dimensions: 15.5 mm, 38 mm, 25 mm, 3.5 mm.
  • Cable length (Lunghezza) and cross-section (Sez. mm²) are specified per model.
  • See the official PDF for exact tabulated values and detailed dimensional drawings.

Disclaimer: This summary is based on extracted text and may miss figures, footnotes, or revisions present in the full OEM PDF. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror