Merlin WeatherDrive MR550EVO Installation And Operating Instructions Manual page 3

IP Rating Chart
Protection of persons and protection of equipment
indicated by the IP code.
The rst numeral indicates
protection of persons against
access to hazardous parts,
and protection of equipment
against ingress of solid foreign
objects. (see AS 1939, Clause 5)
The " ash" symbol
indicates hazardous parts
(live or moving)
Protection provided by enclosures
for electrical equipment is indicated
by the IP codes two:
CHARACTERISTIC NUMERALS
IP
Protection unspeci ed
X
(untested)
0
Non-protected
Protection of the back of the hand
against accidental access to
1
hazardous parts, and protection
of equipment against objects larger
than 50mm.
Protection of ngers against access
to hazardous parts, and protection of
2
equipment against objects larger than
than 12.5mm.
Protection of persons holding tools
or wires (larger than 2.5mm diameter),
3
and protection of equipment against
objects larger than 2.5mm (e.g. ball bearings)
Protection of persons holding small
tools or wires (larger than 1mm diameter),
4
and protection of equipment against
objects larger than 1mm. (e.g. ball bearings)
Protection against entry of dust in
5
su cient quantity to interfere with
satisfactory operation of equipment.
Complete protection against
6
entry of dust.
The second numeral indicates
protection of equipment against
harmful ingress of water.
(see AS 1939, Clause 6)
150mm MIN
1000mm MIN
2
Protection unspeci ed
X
(untested)
0
Non-protected
Protection against drops of water
1
falling vertically.
Protection against drops of water
falling vertically when the object
2
is tilted up to 15 from its normal
position (in any direction)
Protection against spraying water
3
at up to 60 from the vertical.
Protection against splashing and
4
spraying water from all practicable
directions.
Protection against low pressure
5
jets of water from all practicable
directions.
Protection against heavy seas or a
6
strong jet of water from all
practicable directions.
Protection against temporary
7
immersion.
Protection against continous
submersion (tests subject to
8
agreement, but no less severe
than second numeral 7)