Search
When selecting a waterproof push button switch, the IP rating is often the first specification people look at. IP65, IP67, and IP68 appear similar, but they describe very different levels of water protection.
This blog provides a clear side-by-side comparison of IP65 vs IP67 vs IP68, explains what each rating actually means in real use, and helps you choose the right level for your application.
What Does an IP Rating Mean?
An IP rating, short for Ingress Protection, describes how well a device’s enclosure limits the entry of external elements that can affect performance. Instead of focusing on function, it focuses on exposure tolerance.
The rating is made up of two numbers. The first number indicates resistance to solid objects such as dust or small particles. The second number indicates resistance to water under different exposure conditions.
When selecting waterproof push button switches, the second number usually has more influence on the decision, since it reflects how the switch handles rain, splashing, or immersion during operation.
IP65 vs IP67 vs IP68: Comparison Table
| Feature | IP65 | IP67 | IP68 |
| Dust protection | Dust-tight | Dust-tight | Dust-tight |
| Water protection | Water jets | Temporary immersion | Continuous immersion |
| Typical water exposure | Rain, splashing, washdown | Accidental flooding | Submerged operation |
| Immersion resistance | No | Yes (short duration) | Yes (long duration) |
| Common depth rating | Not rated for immersion | ~1 m (manufacturer-defined) | Manufacturer-defined |
| Typical environments | Outdoor panels, enclosures | Vehicle exterior, marine decks | Underwater or flooded systems |
| Installation complexity | Low | Medium | Higher |
| Cost trend | Lower | Medium | Higher |
What IP65 Means in Practice
An IP65-rated switch is protected against dust and low-pressure water jets. It handles rain, splashing, and routine cleaning without issue. This rating is widely used for outdoor control panels, access systems, and wall-mounted equipment.
IP65 works well when water exposure is expected but immersion is unlikely. It is often chosen when cost, availability, and ease of installation matter.
What IP67 Means in Practice
An IP67-rated switch adds protection against temporary immersion. This typically means the switch can be submerged in water for a short period, often up to one meter, depending on manufacturer testing conditions.
IP67 is common in automotive exteriors, marine dashboards, and equipment that may experience brief flooding or heavy washdown. It provides a buffer against unexpected water exposure rather than continuous submersion.
What IP68 Means in Practice
An IP68-rated switch is designed for continuous immersion under defined conditions. Unlike IP67, IP68 does not have a fixed depth or duration. These values are specified by the manufacturer.
IP68 switches are used in underwater equipment, exposed marine systems, and environments where standing water is part of normal operation. Proper installation and sealing are especially important at this level.
IP Rating vs Real-World Conditions
IP ratings are based on controlled laboratory tests. Real environments often include vibration, temperature changes, pressure variation, and chemical exposure. A higher IP rating does not compensate for poor installation or unsuitable housing materials.
For example, an IP67 switch installed incorrectly may fail sooner than a properly installed IP65 switch.
Common Misunderstandings About IP Ratings
- IP ratings apply to the switch body, not the wiring or connectors
- Waterproof does not increase electrical current or voltage capacity
- IP68 does not mean “indestructible”
- Sealing depends on mounting torque and gasket condition
Final Thoughts
IP65, IP67, and IP68 describe different levels of water protection, not overall quality. The right choice depends on how water reaches the switch, how long it stays there, and how the switch is installed.
By matching the IP rating to the real operating environment, a waterproof push button switch becomes a stable part of the system rather than a source of failure.