DAB.MOTOR 4GG - 4" submersible motors

The DAB.MOTOR 4GG range includes 4-inch submersible motors designed for integration with industrial pumps in demanding environments. These two-pole asynchronous motors are built with AISI 304 stainless steel components, ensuring corrosion resistance and durability in submerged conditions. The rotor is supported by plain radial bearings, with axial loads managed by a robust plain heel bearing. Lubrication and cooling are achieved through liquid filling. The stator is sealed in a stainless steel housing with an argon-based gas mixture, and the winding nodes are connected via a four-core flat cable above the pump for a secure power connection.

These motors are commonly used in submersible pump systems for water transfer, drainage, and industrial fluid handling. They are compatible with single-phase (1x230 V/50 Hz) and three-phase (3x230 V/50 Hz, 3x400 V/50 Hz) power supplies and are protected by IP68 sealing and Class F insulation.

How to choose

• Confirm the motor is compatible with your pump’s NEMA 4-inch flange interface.
• Select the appropriate voltage configuration (single-phase or three-phase) based on your electrical system.
• Verify the motor’s power rating (e.g., 3.7 kW) matches the hydraulic requirements of your pump setup.
• Ensure the motor is suitable for the expected load and operating conditions, including continuous submersion.
• Consider the required protection system, such as a CONTROL BOX for single-phase or CONTROL HS for heavier start-up scenarios.

Frequently asked questions

Can the motor be used with a single-phase supply?
Yes, the DAB.MOTOR 4GG supports single-phase operation at 1x230 V/50 Hz, provided a start-up capacitor and overload protection are included in the system.

How is the motor cooled during operation?
Liquid filling is used to cool and lubricate the radial and heel bearings, ensuring stable operation under load.

What is the insulation class of the motor?
The motor is rated for insulation Class F, suitable for continuous operation in high-temperature environments.