Introduction of Motor IP Grade :The Meaning of First Number

Introduction of Motor IP Grade :The Meaning of First Number

Motor IP (INGRESS PROTECTION) grade system is drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION ).IP grade is composed of two numbers, the first number represents for anti-invasion grade of external objects and dust, the second the number shows that the sealing degree of anti- invasion of moisture and water, if the number is greater, the degree of protection will be higher.

0: no special protection

1: it can prevent external objects with solid diameter larger than 50 mm entering into the casing. 

2: it can prevent external objects with solid diameter larger than12 mm entering into the casing. 

3: it can prevent external objects with solid diameter larger than 2.5 mm entering into the casing. 

4: it can prevent external objects with solid diameter larger than 1 mm entering into the casing. 

5: protection against dust, it can prevent dust from entering to affect the normal operation of the product, and prevent dust contacting the inner casing or parts.

6: sealing against dust, it can completely prevent dust from entering into the casing and prevent the dust contacting the inner casing or parts.