What is IP2X and the British Standard Finger in IP Ratings?

The "IP2X British standard finger" refers to a specific test used in the Ingress Protection (IP) rating system to assess protection against solid objects. IP ratings, governed by the international standard IEC 60529, ensure devices can withstand various environmental conditions.

An IP2X rating signifies that equipment is shielded from solid foreign objects larger than 12.5 mm in diameter. This is tested using a jointed test finger probe, which mimics attempts to access hazardous parts with a finger. The probe is 12 mm in diameter and 80 mm long. If it cannot access hazardous parts, the product meets the IP2X standard for protection against direct finger contact.

It's important to note that "British standard finger" isn't an official term in IEC documentation. Instead, standardized test probes like the jointed test finger ensure consistent IP rating tests globally, including in countries like the UK that adhere to these standards.