motor technology - IP rating

Choosing a motor for drive in a system is not a hard thing to do as long as you know the specification and the environmental requirement. It means we have to define how bad the working area surrounding the motor, as dust and water are critical for the motor's lifetime.

 The IP Code (or International Protection Rating, sometimes also interpreted as Ingress Protection Rating) consists of the letters IP followed by two digits and an optional letter. As defined ininternational standard IEC 60529:

The first digit indicates degree of protection provided by the enclosure with respect to persons and solid foreign objects entering the enclosure;
The second digit indicates degree of protection provided by the enclosure with respect to harmful water ingress.

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