since 1991


Submersible motors

Range 4" - 4B


Documentation available

Operating and Maintenance Manual

60Hz Motor

50Hz Motor

Cutaway - Materials

Dimensions and weights

Technical Specifications

From 0,37kW to 7,5kW
Flange: 4” NEMA
Protection rating: IP68
Insulation class: F
Number of starting each hour: Max. 35
Installation: vertical or horizontal
50-60 Hz voltage tolerance: -10% / +10%
Minimum cooling rate: 0,10m/s
Installation below the water level: up to 300m
Max. storage temperature: -15°C / +60°C
Motor Cable (WRAS, KTW, ACS approved) food grade 0,6 / 1kv

Product Benefits

  • All parts in contact with water are made of AISI 304 stainless steel
  • Industry-leading efficiency with low operating costs
  • Protruding shaft made of AISI 304 stainless steel up to 2.2kW. DUPLEX from 3kW up to 7.5kW
  • The power cable plug prevents oil from leaking out during operation
  • The power cable complies with drinking water regulations
  • The cast iron upper motor support has been treated with cataphoresis to prevent corrosion
  • The sand-proof seal protects the mechanical seal from sand
  • The ball bearings are suitably dimensioned for up to 5.000 N
  • Ceramic mechanical seal
  • The motors are pre-filled with food grade oil


  • Special voltages
  • Special frequencies
  • Silicon-carbide SIC-SIC mechanical seal
  • Cables with different lengths up to a maximum of 50m with plug for quick, secure connection
  • Vertical and horizontal cooling jackets
  • Sacrificial anode
  • Capacitors



F.B. Srl
Via Valchiampo, 68
Montorso Vicentino (VI) - Italy
+39 0444 451330