Submersible Motors 4": DAB/Tesla water-filled

Reliable Power. Repairable Design. Built to Last.

DAB’s 4” water-filled submersible motors are the trusted choice for bore pump systems across Australia. Designed in Italy for long-lasting performance, these motors offer consistent, efficient power delivery for demanding groundwater applications.

Constructed with AISI 304 stainless steel and featuring a water-glycol lubrication system, these motors are built to operate in corrosive environments while handling high axial loads with ease. The internal stator is resin-filled or rewindable (depending on model), delivering maximum durability and repairability—making them ideal for long-term service strategies.

Whether paired with DAB wet ends or other compatible 4” NEMA pump bodies, these motors are known for their efficiency, serviceability, and rugged reliability.

Key Features

• NEMA Standard Design
  Universal 4” NEMA flange fits a wide range of pump ends for flexible use across systems.

• Water-Filled with Glycol Mix
  Internal cooling and lubrication via a water-glycol solution provides superior thermal stability and smooth operation.

• Repairable Construction
  Rewindable or resin-filled stator options, depending on model, allow for on-site servicing—reducing downtime and long-term costs.

• Robust Axial Load Capacity
  Kingsbury-type thrust bearings provide high load tolerance for deep installations.

• Stainless Steel Build
  AISI 304 stainless steel components ensure resistance to corrosion and long life in bore environments.

Technical Overview

• Flange: 4” NEMA

• Insulation Class: F

• Protection Rating: IP68

• Max Ambient Temperature: 35 °C

• Cooling Flow Requirement: Min. 0.3 m/s

• Voltage Tolerance: +6% / -10%

• Hardware: AISI 304 stainless steel bolts and fasteners

• Maximum Starts: 20 per hour

• Maximum Depth: 300 metres

Axial Thrust Ratings

• 0.5 HP to 1.5 HP: 2000 N

• 2 HP to 3 HP: 3000 N

• 4 HP to 10 HP: 6000 N

Why Choose the DAB 4” Motor?

• European-made for quality and consistency

• Designed for longevity and ease of service

• Strong thrust ratings for deep or high-demand bores

• Compatible with most industry-standard 4” pump ends

• Ideal for tough Australian groundwater environments