IEC 60335-1 Figure 7 Test Finger Nail Appliance Safety Probe
The IEC 60335-1 Figure 7 Test Fingernail is a specialized safety test probe designed to verify the security of snap-together components and accessibility of hazardous parts in hand-held motor-operated electric tools.
- Designed according to IEC 60335-1 Figure 7 for hand-held power tool safety testing
- Precision stainless steel fingernail-shaped tip with hardened surface
- Insulating nylon handle with M5 adapter for force gauge connection
- Compatible with 10 N, 20 N, 30 N, 40 N, and 50 N push-pull force gauges
- Used to check mechanical strength of snap-fit enclosures and guarding
- Delivered with ISO 17025 traceable calibration certificate
- MOQ: 1
- Delivery: 7 working days
Product Overview
Why This Test Finger Nail Is Required
The IEC 60335-1 Figure 7 Test Finger Nail is a standard-specific appliance safety test probe used to assess the security of parts that are not intended to be removed during normal use. During testing, the fingernail-shaped probe is applied to openings, gaps, edges, joints or component interfaces to determine whether a part can be loosened, displaced or removed when mechanical stress is applied.
This test is especially important for appliance parts that protect users from access to live parts, moving parts or other hazardous areas. If a cover, guard, snap-fit part or protective component can be opened or removed too easily, the appliance may fail to provide the required level of protection during normal operation, cleaning, handling or inspection.
KINGPO supplies the IEC 60335-1 Figure 7 Test Finger Nail for appliance manufacturers, third-party laboratories, certification bodies and quality control departments that need a dedicated probe for IEC 60335-1 related safety checks.
What This Test Finger Nail Is Used For
The test finger nail is mainly used to check whether non-detachable or protective parts of household and similar electrical appliances remain secure under the required test condition.
Typical test objects include:
- Appliance covers and protective panels
- Snap-fit parts and non-detachable components
- Control knobs, caps and decorative covers
- Enclosure joints, openings and small gaps
- Access panels and guards
- Parts intended to prevent access to live components
- Parts intended to prevent access to moving components
- Household appliance assemblies requiring IEC 60335-1 safety verification
This product should not be confused with general accessibility probes such as IEC 61032 test fingers. It is a dedicated test fingernail for IEC 60335-1 Figure 7 related checks.
Basic Specifications
| Item | Specification |
|---|---|
| Applicable Standard | IEC 60335-1 Figure 7 |
| Product Type | Test Finger Nail / Test Fingernail Probe |
| Typical Test Context | Non-detachable parts and snap-fit component security checks |
| Finger Diameter | Ø14 mm |
| Finger Length | 80 mm |
| Applicable Force | 10N, 20N, 30N, 40N, 50N, depending on the test requirement |
| Terminal Connection | Available, please confirm before quotation |
| Typical Test Position | Openings, joints, edges, gaps and component interfaces |
| Typical Test Object | Covers, guards, snap-fit parts, knobs, caps, access panels and protective components |
| Force Gauge | Optional / to be confirmed according to the required test method |
| Calibration Documentation | To be confirmed before quotation |
Note: The final supplied configuration should be confirmed according to the required standard edition, test clause, force value, sample type and documentation requirement.
Testing Principle
The IEC 60335-1 Figure 7 Test Finger Nail simulates the action of a fingernail applied to an appliance part, joint or opening. A specified mechanical force is applied to the probe according to the relevant test requirement. The tested part is then inspected to determine whether it remains in position, becomes loose, opens, detaches or allows access to a hazardous area.
A typical test process may include:
- Identify the appliance part, opening, gap or joint to be tested.
- Apply the test finger nail to the relevant edge, gap or accessible point.
- Apply the specified force according to the applicable test requirement.
- Observe whether the component remains secured.
- Check whether hazardous live parts or moving parts become accessible after the test.
The probe should be used according to the applicable standard clause and laboratory procedure. It should not be used as an undefined lever or destructive tool unless the test method clearly requires a specified action.
Applicable Standard and Test Purpose
This test finger nail is designed according to IEC 60335-1 Figure 7. IEC 60335-1 is the general safety standard for household and similar electrical appliances, and Figure 7 is used in checks related to the security of certain appliance parts.
In practical testing, the fingernail may be applied to openings, joints or component interfaces to check whether a part remains secured under mechanical stress. The test helps determine whether the appliance construction provides sufficient protection against access to hazardous live parts, moving parts or other protected areas.
The exact test method, force value and acceptance criteria should always be confirmed according to the applicable edition of IEC 60335-1, the product-specific standard and the customer’s internal test procedure.
Configuration and Use Notes
- Confirm the applicable IEC 60335-1 edition and the exact test clause before ordering.
- Select the required force value according to the test requirement, such as 10N, 20N, 30N, 40N or 50N.
- Confirm whether a terminal connection is required for the intended electric shock or accessibility check.
- If a force gauge or force application device is needed, it should be specified together with the probe inquiry.
- The test finger nail should be applied according to the standard procedure and should not be used as an undefined lever or destructive tool.
- For formal laboratory or certification-related testing, confirm whether dimensional verification or calibration documentation is required.
- Please provide the appliance type, tested part and sample structure so the supplied configuration can match the actual test application.
Typical Applications
The IEC 60335-1 Figure 7 Test Finger Nail is suitable for laboratories and manufacturers involved in safety evaluation of household and similar electrical appliances.
Typical application scenarios include:
- Household appliance safety compliance testing
- Factory quality control before certification submission
- Inspection of appliance covers, guards and snap-fit components
- Testing of parts that prevent access to live or moving components
- R&D verification during appliance enclosure design
- Incoming inspection or comparison testing for appliance components
- Laboratory testing according to IEC 60335-1 related requirements
Typical products that may require related checks include kitchen appliances, cleaning appliances, heating appliances, personal care appliances, small household appliances and other electrical appliances covered by IEC 60335-1 or related product standards.
Metrological Integrity & Validation
- For IEC 60335-1 Figure 7 testing, users should confirm that the test finger nail dimensions, required force value and test method match the applicable standard edition and laboratory procedure.
- If the probe is used with a force gauge or force application device, the force measuring device should be calibrated according to the laboratory’s quality system. Calibration or dimensional verification documentation can be confirmed before quotation when required for certification testing or formal laboratory use.
What to Confirm Before Quotation
To provide the correct configuration, please confirm the following information before quotation:
- Applicable standard and edition
- Required test clause or figure
- Required force value, such as 10N, 20N, 30N, 40N or 50N
- Whether the terminal connection is required
- Whether a force gauge or force application device is required
- Whether calibration or dimensional inspection documentation is required
- Tested appliance type and sample structure
- Quantity and destination country
- Any special internal laboratory procedure or customer specification
Providing this information helps avoid configuration mismatch and ensures that the supplied test finger nail fits the intended test application.
Difference from Related Test Probes
Difference from Related Test Probes
The IEC 60335-1 Figure 7 Test Finger Nail has a specific function and should not be confused with other accessibility probes.
| Product | Main Purpose |
| IEC 61032 Test Probe B | Used for accessibility testing to hazardous parts, especially finger access simulation |
| IEC 61032 Test Probe 11 | Used as a rigid test finger for specific access and force-related checks |
Customers should select the correct probe according to the exact standard clause, appliance type and test purpose. If the test requirement is unclear, KINGPO can help review the standard reference and recommend the suitable probe or accessory.
IEC Standard Test Clause & Equipment List
| Clause | Measurement/testing | Testing / measuring equipment / material needed | Subcontracting |
|---|---|---|---|
| 4 | General requirement | None | |
| 5 | General conditions for the tests | None | |
| 6 | Void | ||
| 7 | Classification | None | |
| 8 | Marking and instructions | Petroleum Spirit | R |
| 9 | Protection against access to live parts | Test fingers, Probe, Pin, Voltmeter, Milliammeter, Force gouges | R |
| 10 | Starting of motor-operated appliances | Nothing Special | |
| 11 | Power input and current | Voltmeter, Ammeter, Wattmeter, Loading as required by part 2’s, Device to measure output torque as specified in part 2’s | R |
| 12 | Heating | Variable voltage source, Temperature Recorder, Fine wire thermocouples, Test corners, Winding resistance measurement system, Loading as required by part 2’s, Device to measure output torque as specified in part 2’s | R |
| 13 | Leakage current | Leakage current meter, Isolation transformer | R |
| 14 | Moisture resistance | IPX1-7 apparatus in accordance with IEC 60529
Environmental chamber capable of 93%RH at selected temp. with HV test facilities |
R |
| 15 | Electrical strength | HV-test facilities | R |
| 16 | Overload protection of transformer and associated circuits | Slide resistors(variable load) | R |
| 17 | Endurance | Timer(100s ON, 20s OFF) | R |
| 18 | Abnormal operation | Fine wire thermocouples, Nothing special | R |
| 19 | Mechanical hazards | Nothing special | |
| 20 | Mechanical strength | Impact hammer, Torque screwdriver, Concrete floor | R |
| 21 | Construction | Test rig for torque on pin supported appliance, Force gauge, steel ball 6 mm | R |
| 22 | Internal wiring | Nothing special | |
| 23 | Components | Laboratory may or may not have facilities for testing to component standards. | S |
| 24 | Supply connection and external flexible cords | Flexing test apparatus | R |
| 25 | Terminals for external conductors | Nothing special | |
| 26 | Provision for earthing | Earth continuity tester, Access to ISO2178 and 1463 testing | R |
| 27 | Screws and connections | Torque gauge | R |
| 28 | Creepage distances, clearances and distance through insulation | Mechanical measurement tools, Rod and ball gauges | R |
| 29 | Resistance to heat fire and tracking | Ball Pressure test apparatus | R |
| 30 | Resistance to rusting | 10 % ammonium chloride | R |
| 31 | Radiation, toxicity and similar hazards | Part 2 requirements | S |
| Annex A | Measurement of creepage distance and clearances | Nothing special | |
| Annex B | Motors <42 volts not isolated from the supply mains and having basic insulation not designed for the rated voltage of the tool | Nothing special | |
| Annex C | Circuit for measuring leakage currents | Meter as specified | R |
| Annex D | Burning test | Burning test apparatus (IEC 60707) | R |
| Annex E | Glow wire test | Glow wire test apparatus | R |
| Annex F | Needle-flame test | Needle-flame test apparatus (IEC 60695-2-2) | R |
| Annex G | Proof tracking test | Proof tracking test apparatus (IEC 60112) | R |
| Annex H | Void | ||
| Annex I | Switches | Endurance test apparatus (IEC 61058-1) | S |
| Annex J | Selection and sequence of the tests of clause 29 | None | |
| Annex K | Battery tools and battery pack | Nothing special | |
| Annex L | Battery tools and battery packs provided with mains connection or non-isolated sources | Nothing special | |
| Annex M | Safety of working stands for operation with hand-held motor-operated electric tools | Nothing special |
Note
IEC 60335-1 Figure 7 Test Finger Nail
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