CEI 23-50 C9 No-Go Gauge for Plug Pin Diameter Verification

CEI 23-50 C9 No-Go Gauge for Plug Pin Diameter Verification is engineered and manufactured in strict compliance with CEI 23-50 Normalization Sheet C9 specifications, classified as a “No-Go” precision dimensional verification instrument. This gauge is specifically designed for the verification of pin diameters on S30, S31, and S32 electrical plugs, with the fundamental requirement that plug pins must not penetrate the gauge aperture. Through this dimensional verification process, the gauge ensures that plug pins conform to specified dimensional tolerances, which is essential for maintaining reliable electrical contact integrity between plugs and sockets while preventing potential safety hazards such as poor connections or short circuits resulting from oversized pins. This instrument is an indispensable tool for manufacturing facilities, quality control departments, and compliance testing laboratories involved in the production and verification of household and similar electrical plugs.

Specifications

• Complies with CEI 23-50 Normalization Sheet C9 technical requirements
• Features a critical dimensional parameter of 4.74 mm for the no-go verification aperture
• Categorized as a “No-Go” gauge specifically designed for pin diameter verification of S30, S31, and S32 plug types
• Utilizes precision machining processes to ensure dimensional accuracy and consistency of the verification aperture
• Constructed with durable materials to withstand repeated verification operations without deformation or wear affecting measurement accuracy
• Specifically applicable for verifying pin diameters of S30, S31, and S32 plugs with clear no-go verification criteria (pins must not penetrate the gauge aperture)

Test Procedures

1. Prepare the CEI 23-50 C9 No-Go Gauge and the S30, S31, or S32 plugs to be verified, ensuring both the gauge verification aperture and plug pins are clean, free of burrs, deformation, or corrosion that could compromise verification results.
2. Select a single plug and identify the pins requiring diameter compliance verification.
3. Align the plug pin with the verification aperture of the No-Go Gauge and attempt to insert the pin into the gauge aperture…