IEC 60335-1 Figure 7 Test Finger Nail

IEC 60335-1 Figure 7 Test Finger Nail is a precision tool designed to assess the integrity of snap-together components in household and similar electrical appliances, adhering to IEC 60335-1 Clause 22.11 Figure 7. It incorporates a hardened stainless steel tip for accurate force application and a nylon insulating handle, equipped with a spring calibrated to 10N-50N for reliable testing of component retention. Compact and ergonomic, it facilitates ease of use, proving indispensable for manufacturers, laboratories, and certification bodies evaluating appliance component security under standardized stress conditions, mitigating risks from loose parts.

• Applicable Force Range: 10N, 20N, 30N, 40N, 50N (spring-calibrated for consistent force output)
• Material Composition: Tip: Hardened stainless steel (wear-resistant, maintains 0.2mm precision); Handle: Nylon (insulating, flame-retardant UL94 V-0 rating)
• Key Dimensions: Tip Thickness: 0.2±0.02mm; Angle: 37° (conforms to IEC 60335-1 Figure 7); Handle Diameter: ø12-0.05mm; Overall Length: 80mm; Radius (R2): ±0.05mm
• Functional Design: Built-in spring (delivers push force per Clause 22.11); Smooth tip (prevents damage to snap-together parts); M3 thread (for accessory compatibility)
• Dimensional Tolerances: Linear dimensions: ≤25mm: ±0.1mm; Tip thickness: ±0.02mm; Angles: ±1°
• Compatibility: Suitable for household appliances (e.g., refrigerators, small kitchen tools) and force gauges for enhanced precision

Test Procedures:

1. Inspect the probe for wear on tips, cracks in nylon handles, or loose springs; verify force range and dimensions align with specifications.
2. Calibrate the integrated spring to the desired force (e.g., 50N for critical snap components such as appliance covers).
3. Ensure the appliance under test is powered off and positioned on a flat, stable surface; identify snap-together components (e.g., knobs, panels).
4. Grip the nylon handle, align the stainless steel tip with the edge of the snap part…