IEC 60529 / DIN 40050 12.5mm Test Probe

This IEC 60529 and DIN 40050 compliant 12.5mm Test Probe is an essential safety verification instrument for household and similar electrical appliances including refrigerators, washing machines, and electric cooking appliances. Engineered to assess the accessibility of hazardous live parts—such as internal wiring, terminal blocks, or conductive components—through appliance enclosure apertures including control panel interfaces, door seals, and ventilation openings, this probe provides critical validation of electric shock protection measures.

Manufactured with precision-machined conductive stainless steel probe elements (12.5mm nominal diameter) and heat-resistant insulated handle assemblies, this instrument applies controlled mechanical force to simulate potential user contact scenarios. The probe’s standardized geometry and material properties ensure consistent testing methodology across global appliance safety compliance frameworks.

Technical Specifications:

• Tool Type: 12.5mm Test Probe (IEC 60529/DIN 40050 compliant; electric shock protection verification instrument)
• Probe Material: Stainless steel (high conductivity grade; surface resistance ≤ 0.1Ω; corrosion-resistant; maintains 12.5mm ±0.1mm dimensional tolerance)
• Handle Material: Heat-resistant ABS plastic (insulated construction; insulation resistance ≥ 100MΩ; ergonomic grip profile; rated for 80–100°C operational environments)
• Key Dimensions:
  • Ball Diameter: 12.5 mm
  • Baffle Plate Diameter: 4 mm
  • Baffle Plate Thickness: 10 mm
  • Handle Diameter: 4 mm
• Core Function: Detection of accessible hazardous live parts in electrical appliances; compliance verification with IEC 60529, DIN 40050, and related electric shock protection standards
• Test Procedures:
  1. Conduct visual inspection of probe assembly for mechanical damage (deformed tip geometry, compromised insulation integrity, or conductivity degradation) and establish electrical connection to appropriate detection instrumentation.
  2. Power the appliance under test and configure operational mode according to applicable test protocols (standby, normal operation, or specified test conditions).
  3. Grasp insulated handle and align probe tip with potential access points on appliance enclosure (control interfaces, panel gaps, structural joints).
  4. Apply steady 50N ±5N insertion force until mechanical resistance is encountered or maximum insertion depth is achieved.
  5. Monitor detection instrumentation for electrical contact indications (signaling potential hazardous live part accessibility).
  6. Document test results: compliance achieved when no electrical contact is detected; non-compliance when hazardous live parts are accessible.