The dust-resistance and waterproofing degrees of protection for the equipment are classified according to EN 60529 (Specification Degrees of Protection Provided by Enclosures (IP Code)) (=IEC 60529), EN 60034-5 (Rotating Electrical Machines - Part 5: Degrees of Protection Provided by The Integral Design of Rotating Electrical Machines (IP Code) – Classification) (=IEC 60034-5), the testing method of which is indicated below.
An "X" is used when one of the two protection classes is not specified in the name (i.e. IPX5, IP4X).
IP Code |
Protection against Ingress of Human Body Parts and Solid Objects |
|
First Number |
Protection Level |
Test Condition |
IP0X |
None |
None |
IP1X |
Protection against approach by hands |
Solid objects with a diameter of 50 mm or more do not enter |
IP2X |
Protection against approach by fingers |
Solid objects with a diameter of 12 mm or more do not enter |
IP3X |
Protection against tips of tools, etc. |
Solid objects with a diameter of 2.5 mm or more do not enter |
IP4X |
Protection against ingress of wires, etc. |
Solid objects with a diameter of 1.0 mm or more do not enter |
IP5X |
Protection against powdery dust |
Powdery dust that may inhibit normal operation does not enter |
IP6X |
Completely dust-proof design |
Cannot be penetrated by powdery dust |
IP Code |
Protection against Ingress of Water |
|
Second Number |
Protection Level |
Test Condition |
IPX0 |
None |
None |
IPX1 |
Protection against water drops falling vertically |
Water drops at a rate of 3 to 5 mm/min for 10 minutes from a height of 200 mm |
IPX2 |
Protection against water drops from directions within a range of 15˚ relative to the vertical plane |
Water drops at a rate of 3 to 5 mm/min for 10 minutes from directions within 15˚ from a height of 200 mm |
IPX3 |
Protection against raindrops from directions within a range of 60˚ relative to the vertical plane |
Sprayed water at a rate of 10 l/min for 10 minutes from directions within 60˚ from a height of 200 mm |
IPX4 |
Protection against ingress of splashes from all directions |
Sprayed water at a rate of 10 l/min for 10 minutes from all directions at a distance of 300 to 500 mm |
IPX5 |
Protection against water jet from all directions |
Sprayed water jet of 30 kPa at a rate of 12.5 l/min for 3 minutes from all directions at a distance of 3 m |
IPX6 |
Protection against strong water jet such as ocean waves |
Sprayed water jet of 100 kPa at a rate of 100 l/min for 3 minutes from all directions at a distance of 3 m |
IPX7 |
Usable after immersion in water under specified conditions |
Immersion to a depth of 1 m for 30 minutes |
IPX8 |
Usable under water |
Determined through cooperation between user and manufacturer |