Ajax IK Tests: Protection Against Mechanical Impacts

Mechanical stresses are among the real-world risks associated with the operation of safety technology. An impact, a deliberate attempt at tampering, or accidental damage can compromise enclosures, sensors, and communication pathways. In the Ajax Lab Durability Challenge, Ajax explains the importance of IK tests in accordance with IEC 62262 and compares standardized laboratory tests with real-world stress tests. The key question here is not merely whether a housing shows visible signs of damage, but whether the device continues to reliably perform its security-critical functions.

IK Tests According to IEC 62262: Explained in Simple Terms

The IEC 62262 standard specifies IK protection classes for electrical equipment and enclosures. The IK classification indicates the defined impact energy that a product can withstand. The scale ranges from IK00 to IK10. As the IK level increases, so does the energy applied to the enclosure during testing.

Impact energy is measured in joules. Its physical basis can be described, in simple terms, in terms of mass, gravitational acceleration, and drop height. In practice, this means that not every visible sign of damage automatically leads to a failure. The key factor in the assessment is whether the product’s protective functions, internal components, and intended function remain intact after the impact.

For professional intrusion detection systems, requirements from EN 50131 are relevant in addition to IEC 62262. This series of standards addresses, among other things, tamper protection and mechanical stresses on components of intrusion detection technology. Ajax notes that an IK rating does not need to appear separately on the packaging of every professional device if the testing conducted in accordance with the requirements for burglar alarm systems already takes the necessary mechanical resistance into account.

What IK protection ratings mean for safety devices

They describe a housing's resistance to defined mechanical impact forces.
The classification ranges from IK00 to IK10.
The test is conducted using specified impact energies in joules.
Minor scratches or cosmetic damage may be acceptable, provided that safety-related functions remain intact.
The key factors are the protection of internal components and the ability to function properly after being subjected to stress.

Standardized laboratory testing and realistic stress tests

Defined test equipment is used in certified test environments. Depending on the target IK rating, equipment such as spring-powered impact hammers, pendulum impact testers, or vertical drop testers may be used. These methods ensure that the applied load is reproducible and the results are comparable.

The Ajax video clearly illustrates this laboratory methodology and combines it with supplementary stress tests. In these tests, the devices were securely mounted and subjected to stress at various points on their casings. Instead of using only standardized impact test specimens, the demonstrations utilized, among other things, a battery, a spark plug, a cell phone, a meat tenderizer, a glass container filled with marbles, a brick, and a sledgehammer.

These practical tests are not a substitute for certification. Rather, they are intended to illustrate the types of mechanical stresses a safety device can withstand in everyday use or during a deliberate attack. The standardized IK test provides a binding, comparable metric. Supplementary demonstrations help installers and operators understand the significance of these values.

Summary: Testing standards and practice serve different purposes

Laboratory tests determine whether a product meets a specific protection class under defined conditions. Practical stress tests also demonstrate how devices may behave when subjected to less predictable influences. Both perspectives are valuable for a well-founded product evaluation.

Important Note: The IK rating is only one factor in system selection. For a reliable security solution, the installation location, tamper detection, IP rating, communication channels, and proper installation must also be taken into account.

Ajax Devices Put to the Test

The video showcased several Ajax components with different IK ratings. These included the MotionProtect Plus G3 Jeweller (IK02), the DoorProtect Plus Jeweller (IK04), the HomeSiren Jeweller (IK06), the KeyPad Outdoor Jeweller (IK08), and the TurretCam HLVF (IK10). According to the video, the KeyPad Outdoor Jeweller also has an IP66 rating.

After each stress test, the devices’ functions were checked again. This included communication with the control panel, the response of the detectors, and—in the case of the camera—the functionality of the optical and moving components. Ajax documents in the video that the tested devices were able to maintain their essential functions despite visible damage and severe impact.

The test of the TurretCam HLVF was particularly impressive. The camera is rated IK10 and was also subjected to an impact of 50 joules in the video. According to Ajax, the camera remained operational. This test demonstrates high resilience but does not represent a general statement for every conceivable installation scenario. The actual level of resilience always depends on the mounting surface, the fastening method, and the nature of the external impact.

Planning Robust Ajax Security Systems Correctly

Rugged components are a key element of professional burglar alarm systems. However, they are no substitute for proper planning. Particularly in areas with a higher risk of tampering, the placement of devices, their mounting, and the protection of cable and communication routes should be considered early on.

Ajax offers solutions for burglary protection, surveillance, and other security applications. Detectors, sirens, control panels, and cameras can work together as part of a coordinated system. Consultation tailored to the specific property is essential for selecting and implementing a suitable burglar alarm system.

The choice of cameras should also be based on the actual environmental conditions. For locations with a high risk of vandalism, a high IK rating, appropriate IP protection, and careful installation can be particularly important. The GRAEF Group can assist you in planning professional video surveillance systems and selecting the appropriate Ajax components.

Conclusion: Maintaining functionality is the key criterion

The Ajax IK tests illustrate why mechanical resilience plays an important role in professional security technology. The IEC 62262 standard establishes a clear and comparable basis for evaluation through IK protection classes. The stress tests demonstrated in the Ajax Lab complement this perspective with real-world examples. For operators, one thing remains crucial: A system is sustainably secure when it combines robust devices, appropriate protection classes, and professional planning.