What Does IP2X Rating Mean?

An IP2X rating, according to the International Electrotechnical Commission (IEC) standard IEC 60529, specifies a level of protection for electronic devices against solid objects and water ingress. 

Here's a detailed explanation:

First Digit (2): The first number serves dual purposes, each with specific definitions and test methods:

Protection of persons against access to hazardous parts

Protection of equipment against ingress of foreign objects

Verification of compliance with the first digit requires the use of two probes (an access-probe and an object-probe) with application forces specified in the standard, or the same probe with two acceptance criteria.

IP2X Probes

IP2X jointed test finger has a 12mm diameter (BND-B/BND-BF50)

IP2X rigid sphere probe of 12.5mm diameter(BND-2B/BND-2BF)

With an IP2X rating, the device enclosure protects against solid foreign objects larger than 12.5mm in diameter and prevents access to hazardous parts with fingers. It effectively blocks entry by fingers or larger debris but does not safeguard against finer particles like dust.

Second Digit (X): The "X" indicates that the device has not been tested for water resistance. Consequently, it signifies that the device is not intended to withstand exposure to water or liquids.

In summary, an IP2X rating means the device is shielded against contact with large solid objects but provides no defense against water. It's crucial to handle these devices carefully to prevent exposure to liquids, which could potentially cause damage.