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Ingress Protection (IP Code) Testing – IP40: Wire Protection

IP40 testing is a crucial standard in the field of product safety, particularly for assessing a product’s ability to protect against the entry of objects as small as 1mm, typically represented by wires. This testing is essential for electrical enclosures and similar products used in environments where they might be exposed to fine objects like wires.

As a certified IP Code testing laboratory, we realize the importance of IP 40 testing. Meeting ingress protection compliance requirements can be difficult. We understand the challenges and guide companies through the process.

Keystone Compliance partners with customers to achieve environmental product compliance. Keystone also offers immediate emergency scheduling. Lastly, we create an accurate test plan to eliminate expensive over-testing. 

Request a quote to learn why we are one of the fastest growing compliance test labs in the country. Contact us to receive more information on IP 40 ingress protection testing.

Summary of IP 40 Ingress Protection Testing

As part of the International Protection (IP) Marking system, managed by the International Electrotechnical Commission (IEC), IP40 provides a clear guideline for the level of protection offered by enclosures against the entry of small objects.

The IP40 rating is instrumental in ensuring that these products can prevent such small object intrusions, maintaining their integrity and safeguarding against potential hazards

This rating is crucial in determining the suitability of products for use in various environments, ensuring that they can resist penetration by objects as fine as 1mm wires.

Understanding IP40 Testing

IP40 testing specifically focuses on one key aspect of protection:

1mm Wire Protection (First Digit – ‘4’)

This testing evaluates whether the product’s enclosure can prevent the entry of small objects, particularly wires, that are 1mm in diameter.

IP 40 Laboratory Testing Procedures

The methodology for IP40 testing is straightforward yet stringent:

Test for 1mm Wire Protection: During this test, a standardized object of 1mm diameter, simulating a wire, 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 hazardous or delicate components inside, ensuring the safety and functionality of the product.

Importance of IP40 Testing

Enhanced Product Safety

IP40 testing is vital for preventing small objects, such as wires, from accessing potentially hazardous parts within electrical equipment, thereby enhancing overall safety.

Reliability in Various Environments

By ensuring protection against 1mm object penetration, the IP40 rating helps maintain the product’s reliability and longevity in different settings.

Consumer and User Confidence

Products meeting the IP40 standard reassure users of their suitability and safety, especially in environments where interaction with small objects like wires is possible.

Compliance with Safety Standards

Adhering to the IP40 standard demonstrates a commitment to safety and quality in product design and manufacturing.

Industry Applications

IP40 testing is particularly relevant for:

Industrial Control Panels and Enclosures: Where protection against the intrusion of small objects like wires is necessary.

Consumer Electronics and Appliances: In domestic and office environments, ensuring safety from small object penetration is essential.

Commercial and Public Electrical Installations: For installations in accessible areas, the IP40 rating provides a measure of safety against inadvertent object entry.

Expert IP 40 Ingress Protection (IP Code) Testing Laboratory

IP40 testing plays a crucial role in certifying that products are safeguarded against the intrusion of 1mm objects, such as wires. This level of testing is not just a compliance measure but a fundamental aspect of product safety, particularly for electrical enclosures.

As technology evolves, the IP40 standard remains essential in ensuring product safety and reliability, adapting to new challenges and applications.

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

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 IP40 testing, we offer a full range of IP Code tests, from IP10 to IP69K, ensuring comprehensive coverage for all ingress protection testing standards.

Request a quote to learn why we are one of the fastest growing compliance test labs in the country.


For similar tests to IP40, visit the following:

Ingress Protection (IP Code) Testing – IP41: Wire & Drip Water Protection
Ingress Protection (IP Code) Testing – IP42: Wire & Tilted Drip Water Protection
Ingress Protection (IP Code) Testing – IP43: Wire & Spray Water Protection
Ingress Protection (IP Code) Testing – IP44: Wire & Splashed Water Protection
Ingress Protection (IP Code) Testing – IP45: Wire & Water Jet Protection
Ingress Protection (IP Code) Testing – IP46: Wire & Powerful Water Jet Protection
Ingress Protection (IP Code) Testing – IP47: Wire & Immersion Protection
Ingress Protection (IP Code) Testing – IP48: Wire & Extended Immersion Protection
Ingress Protection (IP Code) Testing – IP49: Wire & High-Temperature Water Jet Protection