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Ingress Protection (IP Code) Testing – IP27: Finger-Sized Object & Immersion Protection

IP27 testing is a crucial standard for determining a product’s ability to protect against the entry of 12.5mm finger-sized objects and its resistance to immersion in water. This testing is essential for products designed for use in environments where temporary submersion in water and exposure to small objects are likely.

The IP27 rating ensures that these products can sustain their safety and functionality under such conditions, critical for numerous industrial, outdoor, and commercial applications.

As a certified IP Code testing laboratory, we realize the importance of IP27 testing. Meeting ingress protection compliance requirements can be difficult. We understand the challenges and guide companies through the process. Keystone provides the peace of mind that all of your needs will be met under one roof.

Request a quote to receive testing services tailored to your specific requirements. Have a question about ingress protection testing? Contact us or call (724) 657-9940 and we will determine the best course of action.

Summary of IP 27 Ingress Protection Testing

The International Protection (IP) Marking system, established by the International Electrotechnical Commission (IEC), includes IP27 as a vital classification. This system categorizes the protection level provided by electrical enclosures against various external factors, such as solid objects and liquids.

Specifically, the IP27 rating evaluates the enclosure’s ability to prevent the intrusion of objects as large as 12.5mm in diameter and its capacity to withstand temporary immersion in water.

Understanding IP27 Testing

IP27 testing encompasses two important aspects:

12.5mm Finger-Sized Object Protection (First Digit – ‘2’)

This testing ensures that the product’s enclosure can prevent the penetration of objects with a diameter of 12.5mm, preventing accidental contact with hazardous parts.

Immersion Protection (Second Digit – ‘7’)

This part of the test assesses the product’s ability to resist water ingress during temporary immersion under specified conditions, such as depth and duration.

IP27 Laboratory Testing Procedures

The methodology for IP27 testing is both rigorous and detailed:

Test for 12.5mm Finger-Sized Object Protection: In this test, an object of 12.5mm diameter is used to attempt to penetrate the enclosure. The object must not be able to fully penetrate the enclosure or come into contact with any dangerous internal components.

Test for Immersion Protection: The product is immersed in water at a depth determined by the standard, typically 1 meter, for a duration specified by the manufacturer, usually at least 30 minutes. This test checks whether the enclosure can prevent water from entering and causing damage to the internal components.

Importance of IP 27 Testing

Enhanced Safety and Reliability

IP27 testing is critical for ensuring that products are safe from small object penetration and water immersion, enhancing their overall reliability for various uses.

Consumer Trust

Products meeting the IP27 standard reassure consumers about their durability and safety in conditions involving potential water exposure and human interaction.

Compliance with Safety Standards

Adhering to the IP27 standard indicates a product’s commitment to safety and operational regulations, particularly in the electrical equipment sector.

Suitability for Various Environments

The IP27 rating is essential for products used in settings where temporary immersion and contact with non-technical users are possible.

Industry Applications

IP27 testing is particularly relevant in:

Industrial and Outdoor Equipment: For machinery and devices where protection against human interaction and temporary water immersion is necessary.

Marine and Outdoor Electrical Installations: In environments where equipment is subjected to natural elements, including temporary submersion in water.

Consumer Electronics: Especially for devices used in scenarios where accidental immersion and exposure to small objects can occur.

Expert IP 27 Ingress Protection (IP Code) Testing Laboratory

IP27 testing is vital in verifying a product’s ability to resist intrusion from 12.5mm finger-sized objects and endure temporary immersion in water. This testing not only confirms the product’s physical robustness but also ensures its safety and reliability under challenging conditions.

Keystone has a full lab of test equipment which permits us to provide short lead times on scheduling. Our team strives to give our customers more time and energy on product development instead of testing. 

Ready to get started? We are. Contact us to see why so many companies work with us to achieve their environmental standard testing needs.

In addition to IP27 testing, we offer a full range of IP Code tests, from IP10 to IP69K, ensuring comprehensive coverage for all ingress protection testing standards.


For similar tests to IP27, visit the following:

Ingress Protection (IP Code) Testing – IP07: Large Object & Immersion Protection
Ingress Protection (IP Code) Testing – IP17: Large Object & Immersion Protection
Ingress Protection (IP Code) Testing – IP37: Tool-Sized Object & Immersion Protection
Ingress Protection (IP Code) Testing – IP47: Wire & Immersion Protection
Ingress Protection (IP Code) Testing – IP57: Limited Dust Ingress & Immersion Protection
Ingress Protection (IP Code) Testing – IP67: Dust-Tight & Immersion Protection
Ingress Protection (IP Code) Testing – IP20: Finger-Sized Object Protection
Ingress Protection (IP Code) Testing – IP21: Finger-Sized Object & Drip Water Protection
Ingress Protection (IP Code) Testing – IP22: Finger-Sized Object & Tilted Drip Water Protection
Ingress Protection (IP Code) Testing – IP23: Finger-Sized Object & Spray Water Protection
Ingress Protection (IP Code) Testing – IP24: Finger-Sized Object & Splashed Water Protection
Ingress Protection (IP Code) Testing – IP25: Finger-Sized Object & Water Jet Protection
Ingress Protection (IP Code) Testing – IP26: Finger-Sized Object & Powerful Water Jet Protection
Ingress Protection (IP Code) Testing – IP28: Finger-Sized Object & Extended Immersion Protection
Ingress Protection (IP Code) Testing – IP29: Finger-Sized Object & High-Temperature Water Jet Protection