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Lead Contents

Pushbutton / Indicator Lamp: Degree of Protection (IP[][])

FAQ No. FAQ01855

Primary Contents

Question

What is IP-[][]?

Answer

Degree of Protection

Note:IP-[][] degrees of protection given in this document were confirmed by OMRON based on the test conditions given below. Confirm satisfactory sealing performance in the actual operating environment and under the actual operating conditions before use.

IEC (International Electrotechnical Commission) Standards (IEC 60529 2001)

First symbol: Degree of protection against solid materials

DegreeProtection
0
No protection
1
Protects against penetration of any solid object such as a hand that is 50 mm or
more in diameter.
2
Protects against penetration of any solid object that is 12.5 mm or more in diameter.
Any object with a diameter of 12 mm, such as a finger, will not reach a hazardous part
even if it penetrates 80 mm.
3
Protects against penetration of any solid object such as a wire that is 2.5 mm or
more is diameter.
4
Protects against penetration of any solid object such as a wire that is 1 mm or more
in diameter.
5
Protects against penetration of dust of a quantity that may malfunction the protect
or obstruct the safety operation of the product.
6
Protects against penetration of all dust.

Second symbol: Degree of protection against water

DegreeProtectionTest method (with pure water)
0No protectionNot protected against water.No test
1Protection against
water drop
Protects against vertical
drops of water towards the
product.
Water is dropped vertically
towards the product from
the test machine for 10 min.
2Protection against
water drops
Protects against drops of
water approaching at a
maximum angle of 15° to
the left, right, back, and
front of vertical towards
the product.
Water is dropped for 2.5
min each (i.e., 10 min in
total) towards the product
inclined 15° to the left,
right, back, and front from
the test machine.
3Protection against
sprinkled water
Protects against sprinkled
water approaching at a
maximum angle of 60°
from vertical towards the
product.
Water is sprinkled at a
maximum angle of 60° to
the left and right from
vertical for 10 min from the
test machine.
4Protection against
water spray
Protects against water
spray approaching at any
angle towards the product.
Water is sprayed at any
angle towards the product
for 10 min from the test
machine.
5Protection against
water jet spray
Protects against water jet
spray approaching at any
angle towards the product.
Water is jet sprayed at any
angle towards the product
for 1 min per square meter
for at least 3 min in total
from the test machine.
6Production against
high-pressure
water jet spray
Protects against
highpressure water jet
spray approaching at any
angle towards the product.
Water is jet sprayed at any
angle towards the product
for 1 min per square meter
for at least 3 min in total
from the test machine.
7Protection
underwater
Resists the penetration of
water when the product is
placed underwater at
specified pressure for a
specified time.
The product is placed 1 m
deep in water (if the
product is 850 mm max. in
height) for 30 min.
8Protection
underwater
Can be used continuously
underwater.
The test method is determined by the manufacturer
and user.

IP69K Degree of Protection

IP69K is a standard for protection again ingress of high-temperature, high-pressure water defined in the German standard DIN 40050 Part 9. The test piece is sprayed with water at 80° at 80 to 100 bars with a nozzle of the specified shape. The water volume is 14 to 16 l/min. The test piece is separated from the nozzle by 10 to 15 cm and water is sprayed for 30 s each at 0°, 30°, 60°, and 90° while the test piece is rotated on a horizontal plane.

*1.OMRON Test Methods

The Proximity Sensor’s IP67 degree of protection was confirmed by performing the tests described in the table below and making sure that the sensing distance and installation resistance satisfied the performance specifications after repeating a heat shock cycle 5 times, consisting of immersing the Sensor in cold water at 0°C for 1 hour followed by hot water at 70°C for 1 hour.

*2.Precautions on OMRON Testing

Operating conditions for E2F Proximity Sensors: Underwater within 10 m

(1)No penetration of water when immersed in water for 1 hour at an atmospheric pressure of 2

(2)Satisfies sensing distance and insulation resistance performance specifications after the heat shock cycle described in *1 is repeated 20 times

In-house Standards for Oil Resistance

Degree of protection
OilproofNo harmful effect when subjected to oil drops or oil spraying from any direction.
Oil-resistantNo penetration into internal parts when subjected to oil drops or oil spraying from any direction.

Note:Oil resistance is confirmed using oils and cutting oils stipulated by OMRON (equivalent to previous JEM standards).