IP Ratings Guide

March 27, 2014 at 10:00 AM

 

One commonly asked question we receive from our customers is “What is the difference between IP67 and IP68?

 

Let’s first take a look at how these ratings work. Ingress Protection (IP) numbers are used to define a products resistance to moisture and fine particulates.

 

The first number after IP (shown in the left hand column below) denotes a products protection against solid objects like dust and sand.  This number can range from 0, meaning no protection against dust and sand, to 6, meaning 100% protection against dust and sand.  

 

The second number after IP denotes the part's protection against liquids.  It ranges from 0 to 8, from protection against direct liquid sprays to protection against long periods of immersion under pressure.  


Our IP67 Fiber Optic Cables, shown above, ensure protection from moisture and dust with an operating Temp: -40 to +85 Celsius.  Our IP68 Ruggedized Ethernet cables, shown on the right, offer complete moisture, dust, oil and UV protection for applications used in military, outdoor or industrial settings. 

 

Take a look below for further details on each of the IP categories. 

 

 

First number (Protection against solid objects)

Definition

Second number (Protection 
against liquids)

Definition

0

No protection

0

No protection

1

Protected against solid objects over 50mm 
(e.g. accidental touch
 
by hands)

1

Protected against vertically falling drops of water

2

Protected against solid objects over 12mm 
(e.g. fingers)

2

Protected against direct sprays up to 15o from the vertical

3

Protected against solid objects over 2.5mm 
(e.g. tools and wires)

3

Protected against direct sprays up to 60o from the vertical

4

Protected against solid objects over 1mm 
(e.g. tools, wires
 
and small wires)

4

Protected against sprays from all directions - limited ingress permitted

5

Protected against dust - limited ingress 
(no harmful deposit)

5

Protected against low pressure jets if water from all directions - limited ingress permitted

6

Totally protected 
against dust

6

Protected against strong jets of water e.g. for use on ship decks - limited ingress permitted

 

 

7

Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes

 

 

8

Protected against long periods of immersion under pressure

 

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