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 Definitions
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 |
