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Iec 60034 Part 30 Pdf Downloadl ((HOT))



What is IEC 60034-30 and why is it important for electric motors

IEC 60034-30 is a standard that specifies efficiency classes for single-speed, three-phase, cage-induction motors that operate on sinusoidal voltage. It was published by the International Electrotechnical Commission (IEC) in 2014 and aims to harmonize the energy efficiency requirements for electric motors worldwide.

The standard defines four IE (International Efficiency) classes: IE1 (standard efficiency), IE2 (high efficiency), IE3 (premium efficiency) and IE4 (super-premium efficiency). The higher the IE class, the lower the energy losses and the higher the energy savings. The standard covers motors with a rated output from 0.12 kW to 1000 kW and with 2, 4, 6 or 8 poles.

The standard applies to all technical constructions of electric motors that are rated for direct on-line operation and designed for continuous or intermittent duty. It also covers brake motors, geared motors and pump motors, as long as they can be tested separately from the machine. The standard excludes motors made solely for converter operation, motors completely integrated into a machine and single-speed motors with 10 or more poles or multi-speed motors.

IEC 60034-30 is important for electric motors because it provides a clear and consistent way of comparing the energy efficiency of different motor models and manufacturers. It also helps customers to select the most suitable motor for their application and to estimate the potential energy savings and payback period. Moreover, it supports the development of energy efficiency policies and regulations for electric motors in different countries and regions.

If you want to learn more about IEC 60034-30 and download the full standard in PDF format, you can visit the official website of IEC at



What are the benefits of IE4 motors

IE4 motors are the most energy-efficient motors in the market, according to the IEC 60034-30 standard. They have lower energy losses than IE3, IE2 and IE1 motors, which means they consume less electricity and reduce greenhouse gas emissions. IE4 motors can also offer other benefits, such as:

Online starting: IE4 motors can operate without a variable frequency drive (VFD), which simplifies the installation and reduces the cost and space requirements.

Lossless excitation: IE4 motors use permanent magnets instead of windings in the rotor, which eliminates rotor losses and improves the power factor at all loads.

Synchronous speed: IE4 motors run at the same speed as the supply frequency, which avoids slip losses and improves the accuracy and stability of the process.

Wide application range: IE4 motors are suitable for applications with constant torque below synchronous speed and constant power above synchronous speed, such as pumps, fans, compressors and conveyors.

IE4 motors can help customers save energy and money over the lifetime of the motor-driven system. They can also comply with the most stringent energy efficiency regulations and standards in different countries and regions.

How to choose an IE4 motor

When choosing an IE4 motor, it is important to consider not only the efficiency class, but also the quality, performance and reliability of the motor. Some factors to look for are:

The design and construction of the motor: IE4 motors should have a robust and innovative design that ensures optimal mechanics, compactness and weight reduction.

The test method and certification of the motor: IE4 motors should be tested and certified according to the IEC 60034-2-1 standard, which specifies the standard methods for determining losses and efficiency from tests.

The compatibility and integration of the motor: IE4 motors should be compatible with different types of VFDs and control systems, and be able to integrate seamlessly with the motor-driven system.

The service and support of the motor: IE4 motors should be backed by a reliable manufacturer that provi


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