Ingress Protection (IP) Rating

 

 Designation

 First Numeral Protection
against contact and ingress
of foreign bodies

 Second NumeralProtection
against water.

 IP44

 Protection against contact with
live or moving parts
inside the enclosure by tools,
wires, or such objects of
thickness greater than 1mm.
Protection against ingress of
small solid foreign bodies
(diameter greater than 1mm)
excluding the ventilation
openings (intake and discharge
of external fans) and the drain
hole of enclosed machine,
which may have degree 2
protection.

 Water splashed against the
enclosure from any direction
shall have no harmful effect

     

 IP54

 

 Water splashed against the
machine from any direction
shall have no harmful effect.

     

 IP55

 Complete protection against
contact with live or moving parts
inside the enclosure. Protection
against harmful deposits of
dust. The ingress of dust is not
totally prevented, but cannot
enter in an amount sufficient to
interfere with satisfactory
operation of the machine.

 Water projected by a nozzle
against the enclosure from any
direction shall have no harmful effect.

     

 IP56

 

 Water from heavy seas or water
projected from jets shall not
enter the machine in any
harmful quantity.

     

 IP65

 Complete protection against
contact with live or moving
parts inside the enclosure and
against the ingress of dust.

 Water projected by a nozzle
against the machine from any
direction shall have no harmful effect.

     

 IP66

 Complete protection against
contact with live or moving
parts inside the enclosure and
against the ingress of dust.

 Water from heavy seas or water
projected from jets shall not
enter the machine in any
harmful quantity.

     
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