What does AirLink Ingress Protection rating of IP64 mean?

Jan 22, 2016 - Author: Sierra Wireless - 323 Views
An IP (Ingress Protection) rating measures the rates and the degrees of protection provided against the intrusion of solid objects (including body parts like hands and fingers), dust, accidental contact, and water in mechanical casings and with electric enclosures. The first number of an IP rating represents the level of protection against "solid particles", while the second number represents the level of protection against “liquid ingress”.

An IP rating of 64 indicates the following for an AirLink device:

  • 6 for solid particles – “No ingress of dust; complete protection against contact.” 6 is the highest rating for solid particle protection.
  • 4 for liquid ingress – Splashing Water; “Water splashing against the enclosure from any direction shall have no harmful effect.”

This is based on the following test conditions:

  • Test duration: 5 minutes
  • Water volume: 10 litres per minute
  • Pressure: 80–100 kN/m²
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