Multi-ESD

Summary

Product identification

The Multi ESD Surface Vertical pump is equipped with an integrated inverter.

Applications:

• Constant water supply in dripping irrigation installations.
• Industrial applications requiring constant pressure.

Equipment:

• Pumps are supplied with an integrated Variable Frequency Drive (VFD).
• A pressure transducer must be ordered separately.

Operating limits

Voltage Range:

• Low voltage disconnect:
  • 180 V (M2 models)
  • 310 V (T2/T3 models)
• Low voltage automatic reset:
  • 195 V (M2 models)
  • 335 V (T2/T3 models)
• High voltage disconnect:
  • 270 V (M2 models)
  • 485 V (T2/T3 models)
• High voltage automatic reset:
  • 250 V (M2 models)
  • 475 V (T2/T3 models)

The integrated Speedrive includes protections against dry running, high temperature, and over intensity.

Electrical

• Efficiency: IE3
• Energy Index:
  • MEI≥0,4 for Multi 25/35
  • MEI≥0,4 for Multi 55

Available Voltages:

• 1~230 V (Model M)
• 3~400 V (Model T)

Motor Power (P2) and VFD Type:

Mechanical / hydraulic

The VFD increases and decreases motor speed according to installation demand, supplying constant pressure. The input signal comes from a pressure transducer installed on the discharge pipe.

Hydraulic Performance: Performance areas are specified for Multi ESDM and Multi ESD models at 2900 rpm. See the official PDF for exact tabulated values and performance curves.

Connections (Nominal Pipe Size):

• Multi ESD 25 Models:
  • Suction: 1 1/4”
  • Discharge: 1 1/4”
• Multi ESD 35 Models:
  • Suction: 1 1/2”
  • Discharge: 1 1/4”
• Multi ESD 55 Models:
  • Suction: 1 1/2”
  • Discharge: 1 1/4”

Dimensions and Weights: See the official PDF for exact tabulated values for models Multi ESD 25, Multi ESD 35, and Multi ESD 55, including dimensions (A, B, C, D, E, F, G) and weight (Kg).

Accessories:

• Pressure transducer: 4-20 mA (10 bar)

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror