IP protection level
The IP (Ingress Protection) protection level system is drafted by IEC (International Electrotechnical Commission), which classifies electrical appliances based on their dust and moisture resistance characteristics. The IP protection level is composed of two numbers. The first number represents the level of dust prevention and intrusion prevention of electrical appliances (including tools, human fingers, etc.), and the second number represents the degree of airtightness of electrical appliances against moisture and water intrusion. The larger the number, the higher the protection level.
Overview of IP Protection Level Representation Methods
The level of protection is often expressed as an IP followed by two numbers, which are used to specify the level of protection.
The first digit indicates the range of dust resistance of the device, or the degree to which people are protected from harm in a sealed environment. Represents the level of preventing solid foreign objects from entering, with a maximum level of 6;
The second digit indicates the degree of waterproofing of the equipment. Represents the level of water prevention, with a maximum level of 8.
The first digit after IP: Dust level
Digit | Protection Scope | Illustrate |
0 | Unprotected | No special protection for external people or objects |
1 | Prevent the invasion of solid foreign objects with a diameter greater than 50mm | Prevent the human body (such as the palm of the hand) from accidentally coming into contact with the internal parts of the electrical appliance, and prevent the invasion of larger objects (with a diameter greater than 50mm) |
2 | Prevent the invasion of solid foreign objects with a diameter greater than 12.5mm | Prevent human fingers from touching internal parts of electrical appliances, and prevent medium sized (diameter greater than 12.5mm) foreign objects from invading |
3 | Prevent the invasion of solid foreign objects with a diameter greater than 2.5mm | Prevent tools, wires, and similar small foreign objects with a diameter or thickness greater than 2.5mm from invading and coming into contact with internal parts of electrical appliances |
4 | Prevent the invasion of solid foreign objects with a diameter greater than 1.0mm | Prevent tools, wires, and similar small foreign objects with a diameter or thickness greater than 1.0mm from invading and coming into contact with internal parts of electrical appliances |
5 | Prevent foreign objects and dust | Completely preventing foreign objects from invading, although it cannot completely prevent dust from invading, the amount of dust invasion will not affect the normal operation of the electrical appliance |
6 | Prevent foreign objects and dust | Completely prevent the invasion of foreign objects and dust |
The second digit after IP: waterproof grade
Digit | Protection Scope | Illustrate |
0 | Unprotected | No special protection against water or moisture |
1 | Prevent water droplets from soaking in | Vertically falling water droplets (such as condensate) will not cause damage to electrical appliances |
2 | When tilted at 15 degrees, it still prevents water droplets from soaking in | When the appliance is tilted vertically to 15 degrees, dripping water will not cause damage to the appliance |
3 | Preventing the immersion of sprayed water | Prevent rain or damage to electrical appliances caused by water sprayed in directions with a vertical angle of less than 60 degrees |
4 | Prevent splashing water from soaking in | Prevent water splashing from all directions from entering electrical appliances and causing damage |
5 | Preventing the immersion of sprayed water | Prevent damage caused by water sprayed from nozzles from all directions entering electrical appliances |
6 | Preventing Immersion of Large Waves | Electrical appliances installed on the deck can prevent damage caused by heavy waves |
7 | Preventing water immersion during immersion | Electrical appliances immersed in water for a certain period of time or with water pressure below a certain standard can ensure that damage is not caused by immersion |
8 | Preventing water immersion during sinking | The structure that can be completely immersed in water, and the experimental conditions are determined by the producer and user |
