IP69 Certified Protection

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Update time : 2026-02-28

In the era of rapid integration among smart hardware, new energy, industrial automation and consumer electronics, "waterproof and dustproof" is no longer just a marketing slogan, but a rigid threshold related to product lifespan, safety compliance and user experience. The core standard measuring this capability is the Ingress Protection Rating (IP Rating).

But here comes the question: with so many IP ratings, which ones are suitable for your products?

This article will start from the IP coding rules, analyze the typical application scenarios of IPX1 to IP69K level by level, and provide accurate selection suggestions combined with industry access requirements.

IP69 Certified Protection(图1)

First Understand IP Coding

The IP rating is defined by iec 60529 (equivalent to Chinese standard GB/T 4208), in the format of IPXX:

①　First digit (0–6): Protection against solid foreign objects (including dustproof)

②　Second digit (0–9K): Waterproof rating

③　Examples:

④　IP54: Dust protected (incomplete dust protection but no impact on operation) + Splash-proof

⑤　IP68: Dust-tight + Continuous immersion (depth and time specified by manufacturer)

⑥　IP69K: Dust-tight + High-temperature and high-pressure jet washing (commonly used in food and automotive industries)

Note: If a certain item is not tested, "X" can be used instead. For example, IPX7 means only waterproof test is conducted, and dustproof rating is not declared.

Applicable Products for Different IP Ratings

Consumer Electronics & Wearable Devices

IP Rating	Typical Products	Application Scenario Description
IPX4	TWS earphones, smart bracelets	Prevents daily sweat and rain splashing, meets light exercise needs
IP67	Flagship smartphones, smart watches	Short-time water immersion (1m/30 mins), dustproof ensures long-term reliability
IP68	High-end smartphones, diving cameras	Supports deeper/longer immersion (e.g. 1.5m/30 mins), often used for marketing differentiation
IP69K	Very few military/special wearable devices	Withstands high-pressure washing, extremely rare

Suggestion: Ordinary users do not need to pursue IP69K; IP67 covers 99% of daily scenarios. However, if positioning as "swim-proof", the immersion depth and duration must be clearly marked.

Outdoor & Smart City Devices

IP Rating	Typical Products	Compliance & Design Key Points
IP65	Outdoor LED displays, charging pile enclosures	Jet-proof (e.g. heavy rain), but not immersible
IP66	Surveillance cameras, street lamp controllers	Resists heavy rain + wind-driven water jets, common requirement for smart city projects
IP67	Geomagnetic sensors, manhole cover monitoring terminals	Short-term submergence by rainwater (e.g. storm waterlogging)
IP68	Underwater sensors, river monitoring devices	Long-term underwater deployment, requires verification of sealing material lifespan

Industrial Automation & Instruments

IP Rating	Typical Products	Industry Standard Requirements
IP65	HMI, frequency converters	Prevents coolant splashing in factory environments
IP66/IP67	Handheld scanners, AGV controllers	Prevents forklift washing and ground splashing
IP69K	Food/pharmaceutical machinery, slaughtering equipment	Must withstand 80℃, 80bar high-temperature and high-pressure washing (EN 60529 + ISO 20653)

Key Point: IP69K ≠ a higher level than IP68. It is an independent test for "high-pressure washing" scenarios, and the two are not interchangeable!

New Energy & Electric Vehicles

IP Rating	Typical Products	Regulatory & Safety Requirements
IP67	Power battery packs, on-board OBC	Mandatory requirement of GB 38031: no short circuit or fire after 30 mins immersion
IP6K9K	Body sensors (millimeter-wave radar, cameras)	Must pass high-pressure car wash simulation (ISO 20653)
IP68	Charging guns, charging sockets	Prevents rainwater immersion + sealing retention after plugging wear

⚡ Special Note: Battery packs claiming IP67 must pass immersion test under live conditions; static test is invalid!

Medical & Special Equipment

IP Rating	Typical Products	Compliance Logic
IPX6/IPX7	Household blood pressure monitors, blood glucose meters	Prevents splashing from cleaning wipes, non-sterile environment
IP68	Surgical robot joints, endoscope handles	Repeatable high-temperature and high-pressure sterilization (requires material biocompatibility)
IP69K	Food processing medical equipment (e.g. disinfection cabinets)	Meets FDA requirements for cleanability

Common Misconceptions: Your "Waterproof" May Be Just an Illusion

Misconception 1: IP68 = permanent waterproof

Fact: ip68 test is based on new device status. Long-term use may cause seal aging and drop deformation, leading to protection failure.

Misconception 2: IP69K is "more waterproof" than IP68

Fact: IP69K tests high-temperature and high-pressure jet (angles 0°/30°/60°/90°), not immersion.

Misconception 3: Higher IP rating is always better

Fact: Higher IP rating means soaring costs (double sealing, metal housing, potting process).

Compliance Suggestions: How to Select IP Rating Scientifically?

Clarify Usage Scenarios

Will users expose the product to rain, water immersion, high-pressure washing or dusty environments?

Reference: IEC 60721 environmental classification standard

Benchmark Industry Access

①　EU CE: IP requirements implied in red directive (e.g. outdoor base stations)

②　china ccc: Mandatory IP rating for some home appliances (e.g. IPX4 for bathroom appliances)

③　Automotive: LV123/LV124 specify IP6K9K for sensors

Balance Cost and Risk

①　Consumer products: IPX4~IP67 is sufficient

②　Industrial products: Starting from IP65; IP69K for food/automotive applications

③　Do not over-design for "better parameters"

Conclusion: IP Is Not Everything, but Nothing Works Without IP

IP rating is a "passport" for products to achieve reliability, safety and globalization. It is not a magic number, but a comprehensive reflection of design, materials, craftsmanship and verification.