UL 982 Figure 58.7 PA145 Standard Test Finger Probe

UL 982 Figure 58.7 PA145 Standard Test Finger Probe is a precision safety testing instrument engineered for compliance verification of household refrigeration appliances including refrigerators, freezers, and ice-making equipment. This specialized tool simulates human finger access to validate that hazardous live components (e.g., internal wiring, compressor elements) and moving mechanisms (e.g., fan blades) remain inaccessible during normal operation.

Constructed with a rigid stainless steel probe element for dimensional stability and repeatable testing performance, coupled with an insulating nylon handle that ensures operator safety during testing procedures. The instrument applies a calibrated 10N thrust force to accurately replicate real-world accidental contact scenarios.

Manufactured to strict UL 982 specification requirements, this test probe delivers consistent, reliable performance for quality assurance departments and testing laboratories. Its durable construction maintains dimensional accuracy under repeated testing cycles, making it essential for manufacturers seeking UL certification and U.S. market compliance.

Technical Specifications

• Probe Type: PA145 UL Standard Test Finger Probe (UL 982 compliant for refrigeration appliances)
• Probe Material: Stainless steel (rigid construction, corrosion-resistant, maintains dimensional accuracy under 10N thrust force)
• Handle Material: Nylon (fully insulating, heat-resistant, non-slip surface for secure grip during testing procedures)
• Key Dimensions:
  • Probe Diameter: 12 mm ± 0.1 mm
  • Effective Probe Length: 80 mm ± 0.2 mm
  • Total Length (Probe + Handle): 180 mm ± 0.5 mm
  • Probe Tip Configuration: Hemispherical, radius 6 mm ± 0.05 mm (smooth surface to prevent appliance enclosure damage)
• Applied Thrust Force: 10N ± 0.5N (simulates moderate accidental finger pressure on appliance access openings)
• Primary Function: Verification of hazardous live/moving part inaccessibility in household refrigeration appliances per UL 982 standard requirements

Testing Procedures

1. Conduct visual inspection of the test probe for any physical damage (e.g., bent stainless steel body, cracked nylon handle) to ensure measurement accuracy.
2. Power on the refrigeration appliance and activate all operational functions (cooling cycles, ice-making mechanisms if applicable) to achieve normal operating conditions.
3. Grasp the insulating handle and align the probe tip with appliance access points (e.g., door gaps, ventilation slits, ice dispenser apertures).
4. Apply steady 10N thrust force to the probe toward internal components.
5. Verify that the probe does not contact any hazardous parts (e… (truncated)