Brushless motor protection grade refers to the national electrical manufacturers association of enclosure protection standards in the industrial control equipment and system. the NEMA protection standards in addition to dustproof, waterproof, including explosion-proof (IP code only including dustproof and waterproof)。 with the following introduction points out the specific division of NEMA motor protection grade:
it and IP protection grade code corresponding to the (Close to or equivalent)Relationship between
IP 30,31,32,64,65,66 NAMA 1 2 3 r 12 and 13 April 3 and 4 x
the national electrical manufacturers association (NEMA)Is the development of electrical equipment standardization technical specifications of the manufacturer group in the United States.
the guarantor laboratory (UL)The NEMA performance standards and test methods as electrical hermetic sealing test and certification guidelines.
NEMA standards:
approximately equal the parentheses IPNEMA
1: it is mainly used for indoor, protection grade should provide the sealing contact protection and limited dust fall protection equipment (IP 30)。
2: indoor use, should provide the protection grade is set limit to the water and dust fall protection (IP 31)。
3: outdoor use, should provide the degree of protection for their journeys, rain and hail protection; Sealed box on the ice from the formation damage (IP 64)。
3 r: outdoor use, the protection grade of the rain and hail protection should be provided; The ice from the formation damage sealing box (IP 32)。
3 s: outdoor use, should provide the degree of protection for their journeys, rain and hail protection; When the ice accumulation, external agencies can still operating.
4: indoor or outdoor use, should provide the protection grade of splashing water, dust and rain, a hose direct water spray protection; Sealed box on the ice from the formation damage (IP 66)。
4 x: its formation damage, corrosion,IP 66)。
6: indoor or outdoor use, protection grade for a short period of time should be provided in limited in deep water protection; Sealed box on the ice from the formation damage.
6 p: indoor or outdoor use, should provide the protection class for a long time into finite deep water protection.
11: indoor use, sealing equipment should be provided protection grade immersed corrosion protective effect for corrosive liquids and gases.
12, 12 K: indoor use, should provide the protection grade of dirt, dust and no corrosive liquid dripping (IP 65)。
13: indoor use, should provide the protection grade of water, oil, and no corrosion protection (coolantIP 65)。
