IEC 60335-2-30 75mm Test Probe

The IEC 60335-2-30 75mm Test Probe is used to evaluate the protective performance of appliance structures, shells and guards according to Clause 11. It helps determine whether hazardous parts inside room heaters and similar appliances are adequately protected against access.

With a defined 75 mm hemispherical probe structure and baffle plate, this test accessory helps laboratories perform repeatable protective performance checks during product development, quality control and compliance preparation.

Applicable Standard and Test Method

This test probe is designed for IEC 60335-2-30 Clause 11 protective performance testing. It is applied to the required appliance structure, shell, guard or enclosure according to the applicable test procedure.

The test position, application direction, appliance condition and result evaluation should follow IEC 60335-2-30 Clause 11 and the laboratory acceptance criteria.

Technical Parameters

Standard and Test Information

Ordering and Documentation Information

Testing Principle and Result Evaluation

The IEC 60335-2-30 75mm Test Probe provides a defined contact body for checking whether appliance structures and shells can prevent access to live parts or other hazardous areas. Before testing, the probe diameter, probe length, hemispherical end, baffle plate size and surface condition should be confirmed.

During the test, the 75 mm probe is applied to the required structure, shell, guard or enclosure according to IEC 60335-2-30 Clause 11. The purpose is to evaluate whether the protective structure remains effective under the specified checking condition.

The result is normally acceptable when the tested structure maintains the required protective function and the probe does not create a non-compliant access condition. If the probe reaches a hazardous area, bypasses the guard, or shows that the structure does not provide adequate protection, the result should be evaluated according to IEC 60335-2-30 Clause 11 and the laboratory acceptance criteria.

Operation and Test Notes

Before testing, users should confirm the applicable standard clause, test position, appliance operating condition, protective structure and result evaluation method.

The probe should be clean, undamaged and used only according to the specified test method. The hemispherical end and baffle plate should be inspected before use to avoid inaccurate contact or access evaluation.

Common Error Mitigation

Reliable protective performance testing depends on correct probe use and correct interpretation of the applicable test clause. Laboratories should avoid:

• Using a non-standard probe diameter
• Applying the probe to the wrong structure or position
• Ignoring damaged or deformed probe surfaces
• Testing without confirming the applicable Clause 11 requirement
• Treating the probe as a complete test machine instead of a checking tool
• Recording only the final result without describing the test position
• Making a pass/fail decision without following the standard acceptance criteria

Maintenance and Documentation Support

After testing, the probe should be cleaned and stored in a dry, protected condition. The hemispherical end, probe body and baffle plate should be inspected regularly for wear, dents, burrs, corrosion or deformation.

For formal testing, laboratories should keep relevant records such as product specification, calibration certificate, dimension verification record, inspection record, tested position and test result. KingPo can provide product documentation support according to order requirements.