EN 50075 Figure 1 Pin Diameter Go/No-Go Gauges

The EN 50075 Figure 1 Pin Diameter Verification Gauges constitute a specialized inspection tool engineered for verifying the pin diameter of flat non-wirable two-pole plugs, with full compliance to BS EN 50075 “Specification for flat non-wirable two-pole plugs 2.5 A 250 V, with cord, for the connection of class II-equipment for household and similar purposes” Figure 1. This gauge set includes both “Go” and “No-Go” components, with critical attributes including dimensional specifications, tolerance ranges, material composition, hardness values, and surface finish characteristics all meeting stringent standard requirements. The selected material exhibits minimal thermal expansion coefficient and maintains stable dimensional accuracy, ensuring consistent and reliable inspection outcomes for product compliance verification.

Specifications:
• Compliance: BS EN 50075 standard Figure 1
• Gauge configuration: “Go” gauges and “No-Go” gauges
• Material hardness: Exceeds 50HRC
• Thermal expansion coefficient: Minimal
• Dimensional tolerances: Stable and reliable
• Surface roughness: Meets standard specifications
• Edge configuration: Slightly rounded
• Applicable product: 2.5A 250V flat non-wirable two-pole plugs with cord
• Intended application: Connection of class II-equipment for household and similar purposes

Test Procedures:
• Select the appropriate “Go” gauge and “No-Go” gauge corresponding to the 2.5A 250V flat non-wirable two-pole plug under inspection.
• Attempt to pass the plug pin through the “Go” gauge aperture without applying excessive force.
• Attempt to pass the same plug pin through the “No-Go” gauge gap without applying excessive force.
• Compliance verification: The pin must pass through the “Go” gauge smoothly and must not pass through the “No-Go” gauge; product compliance is established only when both conditions are satisfied.

Applications: