SB0705 Oversize Grounding Pin Compliant with UL 498 Figure SC 25.1

This SB0705 Oversize Grounding Pin Test Fixture is engineered to precisely conform to the dimensional and structural specifications defined in Figure SC 25.1 of the UL 498 standard for “Attachment Plugs and Receptacles.” It functions as a specialized test component for evaluating the mechanical compatibility, dimensional fit, and grounding performance integrity of attachment plugs and receptacles, specifically verifying their capacity to accommodate oversize grounding interfaces while maintaining reliable electrical continuity and safety compliance.

The fixture’s precision-machined construction ensures dimensional accuracy and repeatable test results, making it an essential tool for manufacturers, testing laboratories, and quality assurance departments requiring verification of UL 498 compliance for electrical connection devices.

Technical Specifications

• Compliance: UL 498 standard, specifically Figure SC 25.1 requirements for oversize grounding pin testing
• Surface Finish: 8 microinches, ensuring durability and consistent surface characteristics for repeated testing cycles
• Manufacturing Process: Requires directional grinding to achieve specified structural precision and testing accuracy
• Nominal Diameter: 0.5 inches
• Key Diameter Range: .203 to .204 inches
• Tip Design: Spherical radius configuration for proper mating with plug/receptacle grounding interfaces
• Dimensional Parameters: .840 to .843 inches, meeting UL 498 Figure SC 25.1 oversize design requirements
• Application: Specifically engineered for testing oversize grounding interface performance of attachment plugs and receptacles

Test Procedures

• Prepare the attachment plug or receptacle sample for testing, ensuring it is free from physical damage, assembled correctly per product specifications, and meets pre-test conditions defined by UL 498.
• Secure the oversize grounding pin on a stable, level testing platform, ensuring it is fixed firmly to prevent displacement during the test…