IEC 60335-20.2 Test Finger Probe with 50 mm Circular Stop Face

Test Finger Probe with Diameter 50 mm Circular Stop Face IEC 60335 20.2 is a critical tool for safety testing of household and similar electrical appliances. It functions similarly to IEC 61032 Test Probe B but features a 50mm diameter circular stop face (replacing non-circular designs) to accurately verify access to hazardous live or mechanical parts. Constructed with heat-treated steel (for durability) and insulating material (for user safety), it includes a guarded handle and precision-machined joints, ensuring compliance with strict safety standards and reliable test results.

Specifications:

• Stop surface design: Circular stop surface, diameter: 50mm
• Main dimensions: Handle/Guard: ø12mm (Guard), ø75mm (Handle portion); Overall length: 160mm
• Precision characteristics: Cylindrical radius: R2 ± 0.05mm; Ball radius: R4 ± 0.05mm; All edges are chamfered
• Materials: Metal parts: Heat-treated steel (for enhanced strength and wear resistance); Guard/Handle: Insulating material

Test Procedures:

1. Inspect the probe for damage (e.g., bent metal, cracked insulation) and confirm dimensional accuracy.
2. Power off the electrical appliance under test and place it on a stable, flat surface.
3. Identify areas where hazardous parts (live components, sharp edges) may be accessible.
4. Hold the probe by its insulating handle, align the stop face with the appliance’s surface, and gently insert the probe into gaps/openings.
5. Check if the probe can reach hazardous parts; record results to verify compliance.
6. After testing, wipe the probe clean and store it in a dry, protected case.

Applications:

• Safety testing of large household appliances (e.g., refrigerators, washing machines) to prevent access to hazardous live parts.
• Compliance checks for kitchen appliances (e.g., electric ovens, microwaves) to verify protection against mechanical hazards.
• Quality control for small electrical appliances (e.g., vacuum cleaners, electric irons) during production.
• Third-party laborator… (truncated)