IEC 62262 IK Impact Test for IK Code Enclosure Testing | UnitedTest IK Impact Test Equipment

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Mechanical testing of industrial products and components is essential to ensure their load-bearing, fatigue resistance, and impact resistance, directly preventing production accidents and ensuring stable operation of equipment. UnitedTest can cover a full range of tests including tensile, hardness, and fatigue, complying with national and international standards, and provides customized industrial mechanical testing solutions.

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Mechanical testing in the packaging industry determines the packaging's resistance to compression, impact, and tension, directly ensuring the safety of contents during storage and transportation. UnitedTest can cover comprehensive mechanical testing for packaging, complying with ISO, ASTM Standards, and provides customized testing solutions for compression, drop, tear, and more.

Mechanical testing in the transportation industry concerns the load-bearing and fatigue resistance performance of core components such as vehicles, tracks, and containers, directly ensuring transport safety and equipment durability. UnitedTest can cover mechanical testing for all types of transportation materials, complying with national and international standards, and provides customized testing solutions including tensile, fatigue, and impact tests.

Metallurgical testing examines the properties of metallic materials to determine if a particular metal is appropriate for its intended use.

Testing of polymer materials covers mechanical, thermal, and chemical properties, verifying strength, heat resistance, composition, and ensuring product quality and compliance.

UnitedTest offer world-class testing solution in testing for polymeric materials, including elastomers, thermoplastics, composites, coatings, and structural adhesives in a variety of industries.

Testing of rubber and elastomers is used to assess the various properties and performance of materials under different conditions. This is crucial for ensuring the safety, functionality, and quality of rubber and elastomer products used in industries such as automotive, construction, consumer goods, and aerospace.

Conduct adhesive testing using various testing methods to determine their performance and characteristics in applications across multiple industries such as aerospace, automotive, construction, packaging, industrial, medical, and energy, thereby supporting application development and quality assurance.

UnitedTest supply machine and testing solution for tension, compression, fracture toughness, direct shear, triaxial and ultrasonic velocity are common concrete and rock testing applications.

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Tensile test evaluates material resistance to stretching, measuring strength/elongation critical for quality control. UnitedTest offers universal tensile testers (10-600KN) compliant with ASTM/ISO standards, providing tailored solutions for metals, polymers, medical & industrial materials.

Compression test assesses material resistance to compressive loads, measuring strength/deformation critical for quality validation. UnitedTest offers compression testing machines compliant with ASTM/ISO standards, providing tailored solutions for concrete, plastics, metals and industrial components.

Flexural & Bend tests evaluate material resistance to bending forces, measuring strength, stiffness and ductility for quality assurance. UnitedTest provides flexural testing machines (3-point/4-point bend) compliant with ASTM/ISO standards, offering tailored solutions for composites, plastics, metals and construction materials.

Torsion Test evaluates material resistance to rotational forces, measuring torsional strength/ductility critical for fasteners, insulators, shafts. UnitedTest offers torsion testers compliant with ASTM A938/ISO 16047, providing tailored solutions for automotive, aerospace, fastener industries.

Fatigue Test assesses material durability under cyclic loading, critical for predicting service life of industrial components. UnitedTest offers fatigue testing systems (axial/bending/torsion) compliant with ASTM E466/ISO 12106, providing tailored solutions for automotive, aerospace and manufacturing sectors.

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Impact Test evaluates material resistance to sudden shock loads, critical for assessing toughness and fracture risk. UnitedTest offers impact testers (Charpy/Izod/fall weight) compliant with ASTM E23/ISO 148, providing tailored solutions for metals, plastics, glass and industrial components.

Tear & Shear Test evaluates material resistance to tearing and shearing forces, measuring critical strength parameters for quality control. Tear tests (Elmendorf/trouser/trapezoidal) assess resistance to crack propagation in films/fabrics, while shear tests measure resistance to parallel forces in joints/bolts. UnitedTest provides universal testing machines (10KN-600KN) with specialized fixtures for both tests, compliant with ASTM D624/D3164 and ISO standards, serving automotive, packaging and construction industries.

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Biaxial/triaxial tests evaluate material performance under multi-axis loads, critical for biomaterials, metals and composites. UnitedTest provides compliant testing machines (ASTM/ISO) for planar biaxial, static/fatigue triaxial tests, with tailored solutions for industrial & biomedical needs.

Friction and wear tests assess material resistance to friction, abrasion and wear, critical for industrial material performance validation. UnitedTest offers tribometers compliant with ASTM G99/ISO standards, covering pin-on-disk, four-ball tests, and tailored friction & wear testing solutions for diverse industries.

Pressure test evaluates material/component resistance to static/dynamic pressure, critical for sealing, strength and safety validation. UnitedTest offers pressure testing machines compliant with ASTM/ISO standards, covering burst, hold-pressure tests, and tailored solutions for industrial, automotive & medical sectors.

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Non-destructive Test (NDT) evaluates material/component integrity without damage, critical for safety & quality across industries. UnitedTest offers ultrasonic/X-ray/magnetic particle NDT equipment compliant with ASTM/ISO standards, plus tailored NDT solutions for aerospace, automotive & manufacturing sectors.

IEC 62262 IK Code Impact Test Machine for Electrical Enclosures | UnitedTest

UnitedTest manufactures IEC 62262 compliant mechanical impact testing machines to verify IK protection ratings of electrical equipment enclosures up to 72.5 kV, for product certification and laboratory quality assessment.

IEC 62262 establishes the IK code classification system to quantify the protection level of electrical equipment enclosures against external mechanical impacts, applicable to units with rated voltage ≤72.5 kV. This standard is adopted when the corresponding product specification requires IK impact protection verification. UnitedTest provides reliable IEC 62262 impact test systems for electrical enclosure durability testing, certification testing and production quality control.

Core Test Principle

The principle is energy-based, single-point, drop/pendulum impact:

A defined striking element (hammer head) of specified mass, material and geometry is raised to a height h (or released by a calibrated spring), so that its gravitational potential energy is converted into kinetic energy: E = m·g·h (g taken as 10 m/s² in the standard's tables).
That energy is delivered perpendicular to the surface of the enclosure under test, at specified points, a specified number of times.
The enclosure is judged not on "how pretty it looks afterwards", but on whether it still fulfils its protective function — i.e. whether the specified IP code still holds (no penetration, no opening of joints, no loss of protection against contact with live/hazardous parts), plus whatever extra criteria the product standard lays down.

So the test is a functional safety test of the enclosure system, not a measurement of a material property. It is a type test (Clause 6.1): it qualifies a design/construction, not a production batch.

Test Specimen Specifications

Specimens shall be new, clean, fully‑assembled enclosures with all components fitted, unless the product standard defines other conditions. Empty enclosures can also be tested if general test requirements are satisfied.
If different enclosure sections have different IK grades, each section must be tested separately.

Test Equipment of IEC 62262 IK Impact Test for IK Code Enclosure Testing

IK Protection Degree Impact Testing Machine (IK Vertical Impact Tester)

The test apparatus shall be selected from hammer types defined in IEC 60068‑2‑75 (Test Eh: Hammer tests); the relevant product standard specifies which hammer to employ.

Three main hammer types are available:

Spring‑operated hammer: For low‑energy IK levels (IK01‑IK06).

Pendulum hammer: For medium‑to‑high‑energy impacts.

Vertical drop hammer: For high‑energy impacts such as IK10, IK11.

The test support shall be rigid: maximum displacement ≤ 0.1 mm under the rated impact energy for the target IK grade

Test Parameters

- Temperature: 15 °C ~ 35 °C

- Air pressure: 86 kPa ~ 106 kPa

- At altitudes > 2000 m, drop height shall be adjusted to achieve the required impact energy.

Impact‑count parameter

Five impacts evenly distributed on each exposed face; **no more than three impacts near any single point** on the enclosure surface. Product standards may modify impact quantity and strike positions.

IK‑code vs impact‑energy table

IK code	IK00	IK01	IK02	IK03	IK04	IK05	IK06	IK07	IK08	IK09	IK10	IK11
Impact energy (J)	No protection	0.14	0.2	0.35	0.5	0.7	1	2	5	10	20	50

Test Procedures of IEC 62262 IK Impact Test for IK Code Enclosure Testing

Prepare new, complete test specimens, apply any required pre‑conditioning specified in product standards.
Mount specimen on rigid support complying with displacement‑limit requirement, simulating real‑service mounting conditions.
Select the appropriate hammer device from IEC 60068‑2‑75 matching target IK energy level.
Deliver required number of impacts evenly across exposed surfaces; avoid over‑testing around one single spot.
After completing all impacts, inspect enclosure for cracks, deformation and damage. Evaluate whether IP‑protection and equipment safety performance are maintained against acceptance criteria.
Record test results and assign the corresponding IK‑classification if pass criteria are satisfied.

Industrial Application Fields

IEC 62262 IK‑impact tests apply to electrical‑equipment enclosures across multiple sectors:

Low‑voltage switch cabinets, control‑gear enclosures
Outdoor & indoor lighting / luminaire housings
Public‑area electrical fixtures, charging‑station housings
Industrial automation equipment, instrument enclosures
Harsh‑environment electrical equipment for construction, transportation, and utilities
Empty enclosures intended for assembly with electrical components.

Related Standard:

IEC 60068‑2‑75	Normative reference, defines hammer‑test hardware and operation methods (Test Eh) used to perform IEC 62262 impact tests
IEC 62262	Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code)
IEC 60529	IP‑code standard for ingress protection (dust/water). IEC 62262 complements it for mechanical‑impact resistance; IEC 62262 pass criteria require preservation of IP‑code performance.
EN 50102	Original CENELEC European standard, the foundational source document for IEC 62262

Keywords: IEC 62262 impact tester, IK code test machine, electrical enclosure mechanical impact test, IK rating testing equipment, enclosure impact resistance tester, electrical cabinet impact test system, IEC62262 lab tester, electrical product certification test instrument, UnitedTest IK impact tester, enclosure protection degree test machine

UnitedTest manufactures IK vertical impact testing machine complying with IEC 62262, IEC 60068-2-75 Test Ehc vertical hammer. For IK rating test, IK01-IK10 enclosure mechanical impact resistance test, with standard fixtures, calibration, lab & certification testing. Get IK vertical drop hammer impact tester details.

A single column tensile tester is a sophisticated material testing instrument designed for measuring mechanical properties of various materials under tension, compression, bending, shear, and other loading conditions. As the name suggests, it features a single vertical column supporting a moving crosshead that applies force to test specimens.

Q1. What is IEC 62262?

IEC 62262 is the international standard that defines the IK code — a classification of the degree of protection provided by enclosures of electrical equipment (rated voltage ≤ 72.5 kV) against external mechanical impacts. The current consolidated edition is IEC 62262:2002+AMD1:2021 (Edition 1.1, published September 2021), prepared by IEC Technical Committee 70 and based on the CENELEC publication EN 50102.

Q2. What does "IK" stand for and what does the number mean?

"IK" is the code letter pair (international mechanical protection); the two digits are the characteristic group numeral, and each numeral corresponds to a fixed impact energy in joules — e.g. IK08 = 5 J, IK10 = 20 J. The scale runs IK00 to IK11.

Q3. What is the full IK rating table?

IK code	Impact energy (J)	Typical equivalent mass × fall height	Typical hammer
IK00	— (not protected per this document)	—	no test
IK01	0.14	0.25 kg × 56 mm	spring hammer
IK02	0.20	0.25 kg × 80 mm	spring hammer
IK03	0.35	0.25 kg × 140 mm	spring hammer
IK04	0.50	0.25 kg × 200 mm	spring hammer
IK05	0.70	0.25 kg × 280 mm	spring hammer
IK06	1.0	0.25 kg × 400 mm	spring hammer
IK07	2.0	0.5 kg × 400 mm	pendulum / vertical hammer
IK08	5.0	1.7 kg × 300 mm	pendulum / vertical hammer
IK09	10	5 kg × 200 mm	pendulum / vertical hammer
IK10	20	5 kg × 400 mm	pendulum / vertical hammer
IK11	50	10 kg × 500 mm	pendulum / vertical hammer

Q4. Is IK11 new?

Yes. IK11 (50 J) was added by Amendment 1 (2021); the original 2002 edition stopped at IK10 (20 J). IK11 is intended for special enclosures or protective grids for extremely harsh outdoor applications, and the standard explicitly states it does not substitute the sandbag test when a product standard calls for that.

Q5. Is IK01 0.14 J or 0.15 J?

In the current consolidated edition (2021) the value is 0.14 J, matching IEC 60068-2-75. Older tables, older certificates and some online charts still quote 0.15 J. If you are comparing an old test report with a new one, this is the most common source of confusion.

Q6. What is the difference between IK and IP?

Completely different protection mechanisms, and neither rating implies the other:

IEC 60529 (IP code) — protection against ingress of solid objects and water, plus protection of persons against access to hazardous parts.
IEC 62262 (IK code) — protection against mechanical impact energy.
They are normally specified together (e.g. IP66 + IK10). Since Amendment 1, the default acceptance criterion links them: the IK test is only passed if no damage occurs that impairs the specified IP code.

Q7. Does IEC 62262 apply to all electrical equipment?

No, two limits apply: (1) the protected equipment's rated voltage must not exceed 72.5 kV, and (2) the standard only applies where the relevant product standard establishes degrees of protection against mechanical impacts. It also assumes the enclosure is otherwise suitable for its intended use.

Q8. How many impacts are applied, and where?

Per Clause 6.4: 5 impacts on each exposed face (unless the product standard says otherwise), evenly distributed, and never more than 3 in the vicinity of the same point. The points of application must be specified by the product standard.

Q9. Why is the IK test important?

Because an enclosure is a safety function, not just a cover. A single impact that cracks a housing, opens a seam or breaks a window can lead to:

loss of IP protection → water/dust ingress → tracking, corrosion, short circuit, electric shock;
exposure of live parts, hot surfaces or moving parts;
sharp edges, loss of EMC shielding, or loss of an Ex flame path in hazardous areas.
IK converts "how hard can it be hit" into one auditable, comparable number for design, procurement, certification and liability protection.

Q10. Why is IK important for material selection?

Because impact is a high-strain-rate, toughness-controlled failure. Amorphous polymers (e.g. PC) dissipate energy by shear yielding and stay tough; PMMA/PS and heavily filled grades fail brittly; semi-crystalline polymers (PA, PP, POM) are notch-sensitive and lose impact strength when cold, UV-aged, hydrolysed or dried/overheated. The achievable IK level therefore depends on material grade + wall thickness + corner radii + rib design + weld lines + gasket/seat design — not on the resin alone.

Q11. Is IK a material property?

No. The same polymer grade can be IK06 in one geometry and IK09 in another. IK is a property of the assembled enclosure system, including mounting stiffness and boundary conditions. Charpy/Izod and falling-weight data are useful for grade screening and incoming QC, but they cannot be converted into an IK rating.

Q12. Which industries need IK testing?

Lighting (IEC 60598-1), low-voltage switchgear and controlgear assemblies (IEC 61439), empty enclosures (IEC 62208), EV charging (IEC 61851), CCTV and access control (anti-vandal), public infrastructure (kiosks, ticket machines, parking meters, traffic controllers), telecom/5G outdoor cabinets, rail and marine, hazardous-area Ex equipment (IEC 60079-0), renewables (PV inverters, battery enclosures), and household appliances/socket outlets.

Q13. How do I choose the right IK level?

Start from the service environment and the credible impact source: indoor protected (IK01–IK06), corridors/lobbies (IK07), general outdoor/street furniture (IK08), industrial and vandal-prone public sites (IK09–IK10), extreme outdoor with protective grids (IK11). Then check what the product standard mandates — it may fix a minimum level regardless of your risk assessment.

Q14. Why choose IEC 62262 IK‑Code Impact Test Machine from UnitedTest Manufacturer?

UnitedTest is professional manufacturer of IEC 62262 IK‑code impact test machines. Our pendulum hammer, spring hammer and vertical drop impact testers comply with IEC 62262 & IEC 60068‑2‑75 for electrical enclosure mechanical‑impact certification tests.

UnitedTest is a reliable manufacturer of IEC 62262 impact testing equipment for electrical‑enclosure IK‑rating verification. Our full‑range IK impact testers including spring‑hammer testers, pendulum impact hammers and vertical drop‑weight test apparatus fully follow IEC 62262:2002+AMD1:2021 and IEC 60068‑2‑75 Test Eh standards.

These machines perform standardized mechanical‑impact tests for IK00‑IK11 grades, to verify enclosure anti‑impact performance for lighting fixtures, switch cabinets, charging‑station housings, instrument shells and other electrical products. Our test equipment delivers accurate repeatable impact‑energy output, rigid test fixtures, adjustable striking positions, helping labs and manufacturers complete type‑approval, R&D validation and quality‑control IK‑code certification testing.

With decades of testing‑machine R&D and manufacturing experience, UnitedTest supplies turn‑key IEC 62262 impact‑test solutions for in‑house QC laboratories, third‑party certification labs, universities and industrial manufacturers worldwide. Customized fixture and configuration options are available for special enclosure‑shapes and product‑standard requirements.

We offer customization to meet your specific needs. Our expert team will collaborate with you to develop the perfect product for you