High-performance 3-phase AC motors

Unlike single-phase AC motors, three-phase AC motors work on three alternating currents, which gives the motor smoother torque and higher power density than single-phase alternatives. The asynchronous motors offered by BEGE are also referred to as three-phase motors or squirrel-cage motors, since the rotor design uses a cage-like conductor rather than external electrical connections

Three-phase motors are popular among industrial clients due to their reliability and simple maintenance. BEGE offers IE3 and IE4 three-phase motors in three series, which consist of aluminium and cast iron motors in 2, 4, 6, and 8 poles.

Three-phase asynchronous motors offer high reliability, low maintenance requirements, and strong energy efficiency compared to single-phase drives. BEGE’s asynchronous motor range is manufactured to strict quality standards, which supports a cost-effective long-term investment for machine builders.

The motors integrate directly with gearboxes and flange encoders, allowing a complete drive system to be built around a single, consistent supplier. Because BEGE maintains a consistent stock of 3-phase AC motors, fast delivery is possible without the waiting times common to custom-order motors.

IE3 and IE4 are international energy efficiency classes of electric motors. IE4 is more efficient than IE3 according to IEC 60034-30. BEGE provides IE3 and IE4 in the Končar H5AZ/H7AZ series and STARK SA/SC series. Buyers can choose the most appropriate energy efficiency class for their specific requirements and budgets.

A higher efficiency class usually means lower electricity consumption during the lifetime of a motor, which matters most for motors that run continuously. This difference is typical in the industry, but BEGE just supplies and keeps in stock both efficiency classes for quick delivery.

3-phase motors offered by BEGE are used in heavy-duty and continuous-duty applications that require high power, steady torque, and smooth operation. Like in industrial manufacturing, shipbuilding, and other areas, where reliable drive power is needed.

The H5AZ/H7AZ series is designed for shipbuilding and heavy industrial applications, offering low noise and minimal vibration. The STARK SA/SC series of three-phase motors covers a range of aluminium and cast iron applications as budget and durable solution. Beyond standard industrial use, there is a special ATEX series of AC motors suitable for explosive conditions in mines, chemical industries, and refineries.

ATEX-certified AC motors are explosion-proof motors that meet requirements of EU ATEX standards for explosive environments. BEGE supplies ATEX motors of Končar, designed for Zone 1 and Zone 2, Area II such as mines, chemical industries, refineries and others.

These motors are equipped with robust explosion-proof design with high protection and corrosion resistance. The use of ATEX motors is required whenever equipment operates in areas where flammable gases, vapors, or dust could ignite, since using a non-certified motor in these zones creates a serious safety and compliance risk.

Saw motors, or low center motors, are compact three-phase motors built specifically for circular saw applications such as milling, cutting, and drilling.

The K-series saw motors from Himmel are characterized by precise operation and powerful performances in a space-saving design. They are suitable both for complicated production lines and standalone machines. With a power range from 5.5 kW to 75 kW, the K-series covers most industrial sawing applications without requiring a custom motor build.

Three-phase motors by BEGE are available in aluminium and cast iron. The aluminium motors are lightweight and easily installed and reduce load on supporting structures. The cast iron motors have increased durability and improved heat dissipation; they are perfect for heavier-duty or more demanding conditions. The SA/SC series is produced in both materials, so buyers can select the construction type without switching product lines.

BEGE offers three-phase AC motors with IC410, IC416, and IC418 cooling types, allowing buyers to match the cooling type with their installations. These standards describe how a motor gets rid of excess heat through self-ventilation or external cooling.

The choice of cooling type influences the motor lifespan and performance, especially in enclosed spaces and high-temperature environments.

BEGE combines cooling type selection with other customization options, including special flanges, shaft configurations, and terminal box positions, to fit each specific installation.

First of all, it is necessary to match the power range and IEC size of a motor with the application. The three series of BEGE provide motors with the power from 0.12 kW to 315 kW and IEC63 to IEC355. Secondly, it is important to select the most appropriate efficiency class (IE3 or IE4) depending on the requirements and budget.

Consider the environment carefully: standard motors for general industrial use and ATEX motor for explosive environments. Finally, factor in construction material, pole count, and cooling type, since BEGE’s customization options allow voltage, insulation class, mounting, and protection features to be tailored to the exact application.