Select Ingress Protection parameters
Solids
Liquids
Letter
Please select valid parameters.
LOOKUP RESULTS
Solid Particle Protection Details
Water Ingress Protection Details
Additional Letter Meaning
Input Parameters Specification
First Digit RatingRepresents the enclosure's safe resistance limits against ingress of solid foreign objects (dust, tools, fingers).
Second Digit RatingIndicates the degree of shielding against harmful ingress of water (drips, sprays, high-pressure jets, immersion).
Testing Duration & LimitsSpecifies standard lab verification parameters: water volume flow (L/min), pressure, and submersion depth.
Additional Letter codesTracks standard electrical modifier symbols (like F, H, M, S, W) used for custom system categories.
Practical Operational Examples
Indoor Consumer Electronics
Typical home appliances are rated IP20. This indicates safety against fingers poking internal parts, but offers no protection against water spills.
Outdoor Weatherproof Boxes
Junction boxes for outdoor wiring are commonly rated IP65, meaning they are completely dust-tight and safe against heavy rainwater sprays.
Waterproof Smartphones
Modern mobile phones boast IP67 or IP68 ratings, certifying survival under complete water submersion up to 1-3 meters for 30 minutes.
Heavy Food-Grade Washdowns
Food processing machinery requires IP69K (or IPx9) ratings to withstand daily high-pressure, hot steam washdowns without shorting.
Formulas & Mathematical Logic
Ingress protection ratings follow a standard alphanumeric coding structure defined by IEC 60529 and ISO 20653.
Coding System: IP [Solid Digit (0-6)] [Liquid Digit (0-9K)] [Additional Letter (Optional)]
No complex algebraic calculations exist, but the system is hierarchical: a higher number always represents stricter testing criteria (e.g. IPX5 water jet is more intense than IPX4 splashing, though IPX7 immersion has separate thermal testing guidelines compared to high-pressure IPX9K jets).
How to Use This Calculator
Select the desired solid protection digit (0-6) from the first selection field.
Select the desired liquid protection digit (0-9K) from the second selection field.
Add any optional additional modifier letters (e.g., F for oil-resistant) if needed.
Click the orange Calculate button to dynamically compile the full IP code definition.
Review the detailed test parameters (pressure, depth, time) to ensure compliance.
About This Calculator
Instantly identify and decode Ingress Protection (IP) ratings for electrical enclosures.
The CalcBoy IP Marking Table Tool decodes international safety standards defined by IEC 60529 and ISO 20653.
IP (Ingress Protection) ratings are international standards used to classify the degree of sealing effectiveness of electrical enclosures against intrusion from foreign bodies (such as dust, dirt, or fingers) and moisture. Sizing electrical enclosure seals correctly is a critical step in industrial machinery design, outdoor wiring installations, and consumer electronics development.
A standard IP code is made of two digits. The first digit (0 to 6) represents protection against solid particles, and the second digit (0 to 9K) represents protection against water ingress. Misinterpreting these numbers can lead to early device failure (such as placing a non-submersible IP65 junction box underwater) or unnecessarily driving up manufacturing costs with over-engineered casings.
This interactive decoder simplifies the lookup process. Users can select any combination of digits and modifier letters to instantly view its safe protection scope and exact standardized laboratory testing parameters (such as water pressure, flow rate, and distance limits).
Main BenefitEliminates manual checks across large industrial standards charts.
Standards MappedFully decodes IEC 60529 (international) and ISO 20653 (elevated pressure 'K' tiers).
Parameters ShownOutputs exact flow rates (L/min), water pressure (kPa/MPa), and testing durations.
Key DifferenceIP67 (temporary immersion) does not automatically guarantee safety under IP69K (hot high-pressure washdowns).
Note: Standards are tested under clean water conditions; chemical resistance (such as acid or salt water exposure) requires separate material testing.
First Digit: Solid Particle Protection
Reference guide for protection levels against solid objects and physical contact.
| Level Sized |
Effective Against |
Protection Description |
| 0 | --- | No protection against contact and ingress of objects. |
| 1 | >50 mm | Any large surface of the body, such as the back of a hand (no protection against deliberate contact). |
| 2 | >12.5 mm | Fingers or similar solid objects. |
| 3 | >2.5 mm | Tools, thick wires, and slender objects. |
| 4 | >1 mm | Most wires, slender screws, and large ants. |
| 5 | Dust Protected | Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with safe operation. |
| 6 | Dust Tight | No ingress of dust; complete protection against contact (dust tight). A vacuum must be applied (up to 8 hours). |
Second Digit: Liquid Ingress Protection
Reference guide for protection levels against moisture and water ingress.
| Level Sized |
Protection Against |
Water Flow & Testing Details |
| 0 | None | No protection against water. |
| 1 | Dripping water | Dripping water (vertically falling drops). Duration: 10 minutes. Equivalent to 1 mm rainfall per minute. |
| 2 | Dripping when tilted at 15° | Vertically dripping water when the enclosure is tilted at 15°. Duration: 2.5 minutes per tilt direction. Equivalent to 3 mm/min. |
| 3 | Spraying water | Water falling as a spray at any angle up to 60° from vertical. Duration: 10 minutes (oscillating) or 5 minutes (nozzle, 10 L/min). |
| 4 | Splashing of water | Water splashing against enclosure from any direction. Duration: 10 minutes. Same as IPX3 nozzle with shield removed. |
| 5 | Water jets | Water projected by a 6.3 mm nozzle against enclosure from any direction. Duration: 3 minutes. Volume: 12.5 L/min. Pressure: 30 kPa at 3 m. |
| 6 | Powerful water jets | Water projected in powerful jets (12.5 mm nozzle) against enclosure. Duration: 3 minutes. Volume: 100 L/min. Pressure: 100 kPa at 3 m. |
| 6k | Powerful jets (High Pressure) | Water projected in powerful jets (6.3 mm nozzle) under elevated pressure (DIN 40050). Duration: 3 minutes. Volume: 75 L/min. Pressure: 1000 kPa at 3 m. |
| 7 | Immersion up to 1 m | Ingress of water in harmful quantity is not possible under defined immersion pressure and time (up to 1 m depth). Duration: 30 minutes. |
| 8 | Immersion 1 m or more | Suitable for continuous immersion in water specified by manufacturer (test depth and duration generally greater than IPX7, up to 3 m). |
| 9K | High temp powerful jets | Protected against close-range high-pressure, high-temperature spray downs. Duration: 2 minutes. Volume: 14–16 L/min. Temp: 80°C. Pressure: 8–10 MPa at 0.1-0.15 m. |
Frequently Asked Questions
1. What is the difference between IP67 and IP68?
Both ratings represent dust-tight structures. However, an IP67 enclosure is rated for temporary immersion in water up to 1 meter depth for 30 minutes, whereas an IP68 enclosure is certified for continuous immersion beyond 1 meter (depth specified by the manufacturer, typically up to 3 meters).
2. Does an IP68 rating guarantee protection against high-pressure sprays (IP69K)?
No. Standard immersion testing (IP67/IP68) does not account for the high mechanical stress of close-range high-pressure steam cleaning (IP69K). Enclosures must be rated and tested separately for both standards.
3. What does the letter 'K' represent in IP69K or IP66K?
The letter 'K' represents specialized, high-pressure industrial testing parameters defined by the German DIN 40050-9 and ISO 20653 standards. These are not originally part of the standard international IEC 60529 standard.
4. Why are some letters like 'X' used in IP ratings (e.g. IPX7)?
The letter 'X' is used as a placeholder indicating that the enclosure has not been rated or tested for that specific parameter. For example, IPX7 means the device has no solid particle rating but is waterproof up to 1 meter depth.
5. Can IP ratings protect against chemical solutions or saltwater?
No. Standard Ingress Protection tests are conducted strictly using clean freshwater. Saltwater, chlorine, acids, or industrial oils can corrode seals over time, requiring separate chemical-resistance certifications.
6. What is the maximum rating in Ingress Protection?
The maximum standard rating is IP69K (or IP69 in IEC), certifying an enclosure is completely dust-tight and can survive high-pressure, high-temperature (80°C) steam spray downs.
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