Introduction
When choosing enclosures to protect electrical equipment, you will often come across terms such as ‘IP protection ratings’. IP ratings indicate the enclosure’s ability to protect against foreign objects such as dust and water. Common IP ratings such as IP55 and IP65 may leave you wondering what the numbers mean.
In this article, we will provide a detailed look at IP55 vs. IP65 to help you find the right electrical enclosure for keeping your electrical equipment safe.
What Is IP Rating?
That being said, it is necessary to first understand IP protection ratings. They are international standards established by the International Electrotechnical Commission, abbreviated as IEC. IP rating provides a unified standard for measuring the protective performance of products against solid and liquid intrusion.
Here’s what the two digits in the IP protection rating mean:
- The first digit of the IP rating: dust protection rating. Indicating the level of protection against the ingress of dust and other solid foreign objects, ranging from IP0 (no protection) to IP6 (dust-tight).
- The second digit of the IP rating: water resistance rating. Indicating the level of protection against liquid ingress, ranging from IP0 (no protection) to IP9 (the highest level of waterproof, such as high-temperature water jets).
What Is an IP55 Rating?
Based on the above logic, let us break down the IP55 waterproof meaning for better understanding:
- The first digit 5 (solid): indicates limited dust protection. Although it cannot achieve complete sealing, the dust that enters the IP55 enclosure will not affect the safety of the equipment.
- The second digit 5 (liquid): indicates protection against low-pressure water jets from any direction, such as rain or water jet cleaning. In such situations, the interior of an IP55 waterproof enclosure will not be damaged.
Under IP55 protection, such enclosures can be used in outdoor lighting, light industrial control boxes, etc.
What Is an IP65 Rating?
One notable feature of IP65 is that it indicates complete dust protection. You can see the first digit “6,” which means that no dust can enter the interior. Even in dusty environments, IP65 enclosures provide the necessary protection.
In terms of water resistance, IP65 waterproof electrical boxes can also withstand low-pressure water jets from any direction. However, high-pressure washing or prolonged immersion should be avoided, as this can damage electrical equipment.
IP55 vs. IP65: Key Difference
Understanding the difference between IP55 and IP66 ratings will help you choose the right protective enclosure for your electrical equipment. In harsh settings, such as dusty outdoor environments, IP55 may not provide sufficient protection for the internal electrical components, which could lead to operational failure. This is something you want to avoid at all costs.
So, let’s quickly compare IP55 and IP66 to help you make an informed decision for your project.
Dust Protection
From the digits of the IP rating, the most obvious difference between IP55 and IP65 is dust protection. The higher the number, the greater the dust protection.
An IP55 rating enclosure allows some dust to enter. However, the quantity of dust that enters is insufficient to cause any harm to electronic components.
IP65 signifies the highest level of protection against dust. If equipment needs to be used in a dusty environment, an IP65 enclosure is required to prevent dust from entering. IP65 electrical enclosures are typically installed in environments such as construction sites, manufacturing facilities, dusty industrial areas, and outdoors to ensure the safety of electrical systems.
Water Protection
Although both IP55 and IP65 can prevent low-pressure sprays from any direction, they differ in their level of protection. An IP65 waterproof enclosure can protect against stronger water flows and is typically used in outdoor environments with heavy rain or in humid conditions where regular washing is required.
In turn, IP55 can only withstand a certain degree of splashing, such as that from garden hoses and sprays. It cannot withstand heavy rain or immersion.
Application
As mentioned previously, there are differences in dust and water resistance between IP55 and IP65. You may therefore already have an idea of what type of enclosure is needed to protect your equipment. To clarify this further, we will outline the typical uses of IP55 and IP65 enclosures.
IP55 waterproof rating enclosures are suitable for environments with minimal dust and moderate rainfall. Examples include indoor workshops, residential distribution boxes, and outdoor areas with canopies. These areas are only exposed to limited amounts of dust and are not continuously exposed to rain.
IP65 enclosures, unlike IP55 enclosures, are suitable for more demanding environments, such as areas with continuous rainfall and high dust. Examples include outdoor lighting and food processing workshops that require regular cleaning.
IP55 vs. IP65: How to Choose the Right IP Rating
By now, you may have some understanding of the differences between IP55 and IP65 in terms of dust and water protection. IP55 offers limited dust protection and protection against low-pressure water jets, while IP65 provides complete dust protection and stronger resistance to rain.
However, the following questions should be considered when choosing the appropriate IP-rated enclosure:
- Will the IP-rated enclosure be installed indoors or outdoors?
- Will it be exposed to occasional dust or constant exposure to large amounts of dust?
- Is the budget sufficient?
Your answers will guide you toward the correct IP-rated enclosure.
Equipment Environment
Of course, you don’t want your electrical equipment to suffer short circuits, wear and tear, or other issues caused by dust and moisture. By thoroughly considering the environmental conditions of the equipment, you can significantly reduce the risk of failure.
In environments with heavy dust or high humidity, IP65 enclosures offer better protection than IP55 enclosures. In addition to being completely dustproof, IP65 outdoor electrical boxes are typically more robust and can withstand harsh environments for longer periods.
In contrast, IP55 is suitable for outdoor areas with some shelter or factory environments with little dust. In circumstances where the equipment is only slightly exposed to water and dust does not enter the interior in excessive amounts, IP55 provides effective protection for the internal electrical components.
Budget
Try an IP55-rated enclosure if your budget is limited. IP55 enclosures are not designed to be completely sealed, which makes them simpler in design. They are usually less expensive.
In contrast, IP65 enclosures are designed to be completely dustproof and typically feature a combination of sealing rings, sealant, cable glands, etc. These materials and tighter designs naturally come at a higher cost.
Expected Life of Equipment
Both IP55 and IP65 ratings can extend the service life of equipment, but their specific performance will vary depending on the environment in which they are used. In harsh outdoor environments, the IP65 rating offers better dust protection and durability. Compared to IP55, it reduces the risk of shortened service life caused by the long-term accumulation of dust and moisture.
Worksite Safety
After considering the above factors, please confirm whether your industry requires the use of IP-rated enclosures. Some industries require products with a minimum IP55 rating, while others require an IP65 rating. Ensure that electrical enclosures comply with workplace safety standards to avoid unnecessary risks.
Choose a Proper IP-rated Enclosure from SKKBO
Are you still unsure about which IP rating to choose for your electrical enclosure? Look no further than a reliable electrical enclosure supplier. With over 20 years’ experience working with customers around the world, SKKBO offers enclosures with various IP ratings, from IP40 to IP66.
Our IP-rated enclosures are available in a range of sizes, materials, and designs to suit your needs. We can customise the perfect IP-rated electrical enclosure for you based on your specific environmental conditions, budget and requirements.
Conclusion
In summary, both IP55 and IP65 protect against dust and water. However, IP55 allows some dust to enter, while IP65 is completely dustproof. The former is suitable for moderate dust and humid environments, while the latter is designed for more extreme conditions.
In addition to protective performance, when hesitating about IP55 vs. IP65, you should also consider your project budget, expected electrical equipment lifespan, etc. If you have any further questions, contact SKKBO’s professional team for assistance and to receive a free quote for custom distribution boxes.
FAQs About IP55 vs. IP65
Is IP65 Good Against Rain?
Yes, the IP65 enclosure’s sealing strip and sturdy material allow it to be used in the rain. However, it is not recommended to allow rainwater to submerge the enclosure, as the IP65 enclosure can only withstand low water pressure jets.
Can IP55 Be Used Outdoors?
Yes. IP55 enclosures can be used outdoors because they can withstand low water pressure jets and splashes. However, there are some factors to consider. IP55 enclosures are not suitable for use in environments that are exposed to heavy rain for long periods of time, as they are not designed for harsh environments.
