IEC 60335 Compliant 40mm Hemispherical Contact Test Probe

The IEC 60335 Compliant 40mm Hemispherical Contact Test Probe is a precision safety assessment instrument for household electrical appliances including washing machines, refrigerators, and electric cookers. Its 40mm diameter stainless steel hemispherical tip simulates large-surface accidental contact scenarios (such as palm or body part interaction) with appliance enclosures, evaluating accessibility to hazardous internal components including live conductors and heating elements. Paired with a thermally stable insulated handle, it delivers controlled force application to ensure repeatable, standard-compliant testing. Fully compliant with IEC 60335 requirements, this durable and precise instrument is essential for manufacturers to validate appliance safety and satisfy international regulatory requirements.

Specifications:
Tool Type: IEC 60335 40mm Hemispherical Contact Test Probe (for household appliance large-surface safety assessment)
Probe Tip Material: Stainless steel (conductive, resistance ≤ 0.1Ω; corrosion-resistant; 40mm hemispherical geometry for large-area contact simulation)
Handle Material: Heat-resistant polypropylene plastic (fully insulated, resistance ≥ 100MΩ; ergonomic grip design; operational in 80–100°C appliance environments)
Core Function: Evaluates household appliance enclosure effectiveness in preventing access to hazardous components during large-surface accidental contact; ensures IEC 60335 compliance verification

Test Procedures:
1. Inspect the probe assembly for physical integrity (hemispherical tip deformation, insulation damage, conductivity degradation) and interface with appropriate live-part detection instrumentation.
2. Energize the household appliance and configure to standard operating conditions (e.g., washing machine “wash” cycle).
3. Grasp the insulated handle and position the 40mm hemispherical tip at enclosure apertures (e.g., appliance side panels, access covers).
4. Apply consistent 50N force to the tip, maintaining pressure application for 10-second duration.
5. Monitor detection instrumentation for electrical contact indications or observe enclosure structural deformation.