What are the standards of motors?

But nearly 70% of the industrial motors sold worldwide are made to International Electrotechnical Commission (IEC) standards. Motor standards for these motors are MG 1 for NEMA and the 60034 series and 60071 for IEC that define mechanical, electrical, and performance specifications.

What is NEMA standard for motors?

NEMA is the North American standard for electric motors. NEMA is the publisher of NEMA MG 1-2014, a book that defines the manufacturing standards for alternating-current (AC) and direct-current (DC) motors in North America. The IEC is the standard for electric motors for the rest of the world.

What are the main standards that regulate the specifications of electric motors?

The IEC has contributed to the definition of energy-efficient electric motor systems through the internationally relevant test standard IEC 60034-2-1 for electric motors and the IEC 60034-30-1 classification scheme comprising four levels of motor efficiency (“IE-code”): IE1 Standard Efficiency.

What is an IEEE 841 motor?

IEEE-841 motors are designed for the petrochemical and chemical industries. The IEEE-841 specification covers 1-500 horsepower 2, 4, 6, and 8 pole motors. The nominal efficiencies of these motors from most manufacturers comply with NEMA Premium.

Which countries follow NEMA standards?

The NEMA rating system (NEMA Standard 250) is primarily used in the United States and Canada, whereas the IP rating system (IEC Standard 60529) is used throughout the rest of the world.

What is difference between EN and IEC?

For non-electrical standards the organisations are ISO and CEN. When an IEC standard is prepared it is generally the subject of parallel voting within CENELEC to make it a EuroNorm (EN numbering) and the only difference between the IEC and the EN are annexes which CENELEC generally add for European specific matters.

What IEEE 112?

IEEE 112, 2017 Edition, December 6, 2017 – Standard Test Procedure for Polyphase Induction Motors and Generators. This standard covers instructions for conducting and reporting the more generally applicable and acceptable tests of polyphase induction motors and generators.