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Motor Protection Rating
- Feb 08, 2017 -

Electrical protection class:

Motor protection class IP54 under normal conditions. Special needs of users can also be made into protection degree IP55 motor. Protection rating logo by the characterization of the letters "IP" characterization and attached at the back of the two numbers. Examples are as follows:

Characteristics, the first number indicates the shell and shell parts of the protection level. The significance of numbers:

0 no special protection protective motor makes test.

1 protection greater than 50MM of solid motor can prevent a large area of the body by chance unexpectedly touching or close to live or rotating parts within the shell. To prevent in solid foreign matter into the shell diameter larger than 50MM

2 protection is greater than 12MM of solid motors

To prevent in solid foreign matter into the shell diameter larger than 12MM

3 protection greater than 2.5MM of solid motors

2.5MM tool or to prevent diameter wires touching or close to live or rotating parts within the shell

4 protection greater than 1MM of solid motors

Can prevent the wires of diameter or thickness greater than 1MM or touching or close to live or rotating parts within the shell

5 dust-proof motor under water in any direction shall have no harmful effect

Second, second token number indicates protection against harmful effects due to shell into the water level. The number means:

0 no protection motor without special protection

1 drip-proof motor vertical drops shall have no harmful effect

2 15 degree drop from the normal position to the motor when the motor tilt in any direction to any angle within 15 degrees of vertical drops shall have no harmful effect

3 anti-shower water and electricity within 60-degree angle with the vertical lines of the water should have no harmful effect

4 splash splash water and electricity under any direction shall have no harmful effect

5 spray water-proof motor under water spray in any direction shall have no harmful effect

6 anti-wave motor withstand violent shocks or strong spray of the waves, the motor into the water should not reach hazardous levels.

7 anti-flooding the motor when the motor is immersed in the required pressure of water after a specified time, the motor into the water should not reach the degree of harmful

8 submersible Motors Motors under the conditions stipulated in the manufacturers ' long-term diving. Motor normally watertight, for certain types of motor may also allow water to enter, but should not reach the level of harmful

Hazardous area

Zone 0: the explosive gas always or for long periods

District 1: flammable gases may occur in the course of normal operation of the instrument or

District 2: under normal circumstances, there are no flammable gases, and even an occasional,