IEC 60335 standard 40mm Hemispherical End Test Probe

The IEC 60335 Standard 40mm Hemispherical End Test Probe is a specialized safety tool for household electrical appliances—such as washing machines, refrigerators, and electric cookers. Its 40mm hemispherical stainless steel tip mimics large-area accidental contact (e.g., palm or body part) with appliance enclosures, testing if hazardous internal parts (live wires, heating elements) are accessible. Paired with a heat-resistant insulated handle, it applies controlled force to ensure consistent, standard-aligned testing. Strictly compliant with IEC 60335, it’s durable, precise, and essential for manufacturers to verify appliance safety and meet global market regulations.

Specifications:
Tool Type: IEC 60335 40mm Hemispherical End Test Probe (for household appliance large-contact safety testing)
Probe Tip Material: Stainless steel (conductive, resistance ≤ 0.1Ω; corrosion-resistant; 40mm hemispherical shape for large-area contact)
Handle Material: Heat-resistant PP plastic (fully insulated, resistance ≥ 100MΩ; ergonomic grip; safe for 80–100°C appliance environments
Core Function: Tests if household appliance enclosures block access to hazardous parts during large-area accidental contact; ensures IEC 60335 compliance

Test Procedures:
1. Inspect the probe for damage (dented hemispherical tip, cracked insulation, poor conductivity) and connect to a live-part detection instrument.
2. Power on the household appliance and set it to normal operating mode (e.g., washing machine “wash” cycle).
3. Hold the insulated handle and align the 40mm hemispherical tip with large-enclosure gaps (e.g., appliance side panels, top lids).
4. Apply a steady 50N force to the tip, maintaining pressure for 10 seconds.
5. Check for detection signals (indicating contact with live parts) or visible enclosure deformation.
6. Record results: pass if no hazards/deformation; fail if either issue occurs.

Applications:
1. Testing washing machine top lid gaps (preventing large-contact access to internal wiring) per IEC 60335-1.
2. Verifying refrigerator side panel seams (blocking palm contact with cooling system live parts) compliant with UL 60335-1.
3. Safety checks for electric oven front control panel areas (large-contact protection against heating elements) per EN 60335-1.
4. Quality control for microwave oven door edges (large-contact testing to avoid live-circuit access) during manufacturing.
5. Post-production testing of dishwasher front panel gaps to meet global household appliance safety standards.