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The IP Code, also known as the International Protection Rating or Ingress Protection Rating, is a standardized system defined by IEC 60529. This code consists of the letters "IP" followed by two digits and sometimes an optional letter. It is designed to classify the degree of protection provided by electrical enclosures against the intrusion of solid objects (such as hands and fingers), dust, accidental contact, and water. The purpose of this standard is to offer users more precise information compared to ambiguous marketing terms like "waterproof."

The two digits in an IP rating indicate the level of protection provided under specific conditions, as summarized in standardized tables. For instance, an electrical outlet with an IP22 rating is protected against finger insertion and will not be damaged or become unsafe during a test involving exposure to vertically or nearly vertically dripping water. An IP22 or 2X rating represents the typical minimum requirements for designing indoor electrical accessories.

The meaning behind the two digits in an IP rating can be broken down as follows: The first digit represents protection against solid objects, while the second digit denotes protection against liquids. A higher number signifies better protection. Occasionally, one of these numbers may be replaced by an "X," indicating that the enclosure has not been rated for that particular specification yet. For example, an IPX6 rating means that water projected in powerful jets from any direction will have no harmful effects on the enclosure. Conversely, an IP6X rating indicates complete protection against dust ingress and contact (dust-tight). Additional letters may follow the digits to signify other levels of protection.

This standardized system provides a clear understanding of what level of protection can be expected from electrical enclosures, ensuring safety and reliability in various environments.

First Digit: Solids

The first digit indicates the level of protection that the enclosure provides against access to hazardous parts (e.g., electrical conductors, moving parts) and the ingress of solid foreign objects.

Second Digit: Liquids

Protection of the equipment inside the enclosure against harmful ingress of water.

Level	Object size protected against	Effective against
0	Not protected	-
1	Dripping water	Dripping water (vertically falling drops) shall have no harmfull effect.
2	Dripping water (vertically falling drops) shall have no harmfull effect.	Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15° from its normal position.
3	Spraying water	Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect.
4	Splashing water	Water splashing against the enclosure from any direction shall have no harmful effect.
5	Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects.	Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects.
6	Powerful water jets	Water projected in powerful jets (12.5mm nozzle) against the enclosure from any direction shall have no harmful effects.
7	Immersion up to 1m	Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion).
8	Immersion beyond 1m	The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. Normally, this will mean that the equipment is hermetically sealed. However, with certain types of equipment, it can mean that water can enter but only in such a manner that it produces no harmful effects.

IP Rating Reference Chart

Below is an easy to follow reference chart to help you decide which IP rating you need or have.

IP Number	First Digit - SOLIDS	Second Digit - LIQUIDS
IP69	Protected from total dust ingress.	Protected from steam-jet cleaning.
IP68	Protected from total dust ingress.	Protected from long term immersion up to a specified pressure.
IP67	Protected from total dust ingress.	Protected from immersion between 15 centimeters and 1 meter in depth.
IP66	Protected from total dust ingress.	Protected from high pressure water jets from any direction.
IP65	Protected from total dust ingress.	Protected from low pressure water jets from any direction.
IP64	Protected from total dust ingress.	Protected from water spray from any direction.
IP63	Protected from total dust ingress.	Protected from water spray less than 60 degrees from vertical.
IP62	Protected from total dust ingress.	Protected from water spray less than 15 degrees from vertical.
IP61	Protected from total dust ingress.	Protected from condensation.
IP60	Protected from total dust ingress.	Not protected from liquids.
IP58	Protected from limited dust ingress.	Protected from long term immersion up to a specified pressure.
IP57	Protected from limited dust ingress.	Protected from immersion between 15 centimeters and 1 meter in depth.
IP56	Protected from limited dust ingress.	Protected from high pressure water jets from any direction.
IP55	Protected from limited dust ingress.	Protected from low pressure water jets from any direction.
IP54	Protected from limited dust ingress.	Protected from water spray from any direction.
IP53	Protected from limited dust ingress.	Protected from water spray less than 60 degrees from vertical.
IP52	Protected from limited dust ingress.	Protected from limited dust ingress.
IP51	Protected from limited dust ingress.	Protected from condensation.
IP50	Protected from limited dust ingress.	Not protected from liquids.
IP48	Protected from tools and small wires greater than 1 millimeter.	Protected from long term immersion up to a specified pressure.
IP47	Protected from tools and small wires greater than 1 millimeter.	Protected from immersion between 15 centimeters and 1 meter in depth.
IP46	Protected from tools and small wires greater than 1 millimeter.	Protected from high pressure water jets from any direction.
IP45	Protected from tools and small wires greater than 1 millimeter.	Protected from low pressure water jets from any direction.
IP44	Protected from tools and small wires greater than 1 millimeter.	Protected from water spray from any direction.
IP43	Protected from tools and small wires greater than 1 millimeter.	Protected from water spray less than 60 degrees from vertical.
IP42	Protected from tools and small wires greater than 1 millimeter.	Protected from water spray less than 15 degrees from vertical.
IP41	Protected from tools and small wires greater than 1 millimeter.	Protected from condensation.
IP40	Protected from tools and small wires greater than 1 millimeter.	Not protected from liquids.
IP38	Protected from tools and wires greater than 2.5 millimeters.	Protected from long term immersion up to a specified pressure.
IP37	Protected from tools and wires greater than 2.5 millimeters.	Protected from immersion between 15 centimeters and 1 meter in depth.
IP36	Protected from tools and wires greater than 2.5 millimeters.	Protected from high pressure water jets from any direction.
IP35	Protected from tools and wires greater than 2.5 millimeters.	Protected from low pressure water jets from any direction.
IP34	Protected from tools and wires greater than 2.5 millimeters.	Protected from water spray from any direction.
IP33	Protected from tools and wires greater than 2.5 millimeters.	Protected from water spray less than 60 degrees from vertical.
IP32	Protected from tools and wires greater than 2.5 millimeters.	Protected from water spray less than 15 degrees from vertical.
IP31	Protected from tools and wires greater than 2.5 millimeters.	Protected from condensation.
IP30	Protected from tools and wires greater than 2.5 millimeters.	Not protected from liquids.
IP28	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from long term immersion up to a specified pressure.
IP27	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from immersion between 15 centimeters and 1 meter in depth.
IP26	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from high pressure water jets from any direction.
IP25	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from low pressure water jets from any direction.
IP24	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from water spray from any direction.
IP23	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from water spray less than 60 degrees from vertical.
IP22	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from water spray less than 15 degrees from vertical.
IP21	Protected from touch by fingers and objects greater than 12 millimeters.	Protected from condensation.
IP20	Protected from touch by fingers and objects greater than 12 millimeters.	Not protected from liquids.
IP18	Protected from touch by hands greater than 50 millimeters.	Protected from touch by hands greater than 50 millimeters.
IP17	Protected from touch by hands greater than 50 millimeters.	Protected from immersion between 15 centimeters and 1 meter in depth.
IP15	Protected from touch by hands greater than 50 millimeters.	Previous：Understanding IK Ratings: EN 62262 and EN 50102 2024-08-30 Under：What are the related standards of test finger Probe, test probe and test Pins? 2024-09-04

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ingress protection rating

Ingress Protection (IP) and what it means

First Digit: Solids

Second Digit: Liquids

IP Rating Reference Chart