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What IP Rating Do You Need?

Water and dust can cause electric and electronic equipment to deteriorate or malfunction. To combat this, the International Electrotechnical Commission (IEC) has created the ingress protection (IP) ratings. These ratings assess the level of resistance an enclosure has against the infiltration of dust or liquids. Widely utilized in various industries, IP ratings play a crucial role in safeguarding equipment from potential damage.

The dust-resistance and waterproofing degrees of protection for equipment are classified according to EN 60529 and EN 60034-5. The higher the IP number code, the higher the protection. IP67: the letters, “IP” stand for “Ingress Protection” and are followed by two numerical digits which indicate degrees of protection and solid objects and moisture.

  • 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).
Degree of Protection

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 /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 /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 /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 /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

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