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IEC Standard Motor And GB Standard Motor
May 27, 2017

IEC standards are mainly used in European countries, such as Sweden, Germany, France, Britain and other countries. China's GB standard motor and IEC standard motor similar. IEC standard motor operating frequency is 50HZ, the working voltage is 380V, the corresponding motor synchronous speed is: 2 pole motor 3000RPM; 4 pole motor 1500RPM; 6 pole motor 1000RPM.

IEC standard motor

IEC standards are mainly used in European countries, such as Sweden, Germany, France, Britain and other countries. China's GB standard motor and IEC standard motor similar. IEC standard motor operating frequency is 50HZ, the working voltage is 380V, the corresponding motor synchronous speed is: 2 pole motor 3000RPM; 4 pole motor 1500RPM; 6 pole motor 1000RPM. Well-known motor brands are: ABB motor, SIEMENS motor, LS (LEROY SOMER) Emerson Lilaisenma motor.

IEC standard protection class definition

IP is the IEC standard description of the way the motor protection, under normal circumstances by the IP + two digits. Each number has a specific meaning. The first digit describes the protection against solid entry. The second digit describes the protection against liquid entry.

The first number is defined as follows:

0 unprotected motor without special protection

1 protection of more than 50MM solid motor can prevent a large area of the body accidentally hit or close the shell charged or rotating parts. Can prevent the diameter of more than 50MM solid foreign body into the shell

2 protection of more than 12MM solid motor can prevent the diameter of more than 12MM solid foreign body into the shell

3 protection of motors greater than 2.5MM solid can prevent the diameter of more than 2.5MM of the tool or wire to touch or close to the shell charged or rotating parts

4 Protection of motors larger than 1MM can prevent wires or strips of diameter or thickness greater than 1 MM from touching or approaching live or rotating parts in the shell

5 dust-proof motor to withstand any direction of splash water should be no harmful effects

The second number is defined as follows:

0 unprotected motor without special protection

1 vertical drop drip should be no harmful effects

2 15 degrees drop motor When the motor tilts from normal position to any direction to any angle within 15 degrees, the vertical dripping should be free from harmful effects

3 anti-shower motor and vertical line within 60 degrees angle of the water should be no harmful effects

4 splash water motor to withstand any direction of splashing water should be no harmful effects

5 spray water motor to withstand any direction of water should be no harmful effects

6 anti-wave motor to withstand the impact of intense waves or strong water, the motor water should not reach the extent of harmful.

7 Anti-flooding motor When the motor is immersed in the specified pressure of water after a specified time, the motor water should not reach the degree of harmful

8 submersible motor motor in the factory under the conditions of long-term diving. The motor is generally watertight, and for some types of motors it is also possible to allow water to enter, but should not reach a harmful level