
APPENDIX
J. CONDITIONS OF IEC34
STANDARD CONFORMATIONS
B–65152E/03
216
Degrees of protection specified by IEC34–5 are as follows.
Motor type Degrees of protection
Condition for
certification
Motor with oil–seal as
seal for output shaft
(except IP55 models)
IP54 Limited to use conduit
hose approved as IP54
Motor with labyrinth or
without seal as seal for
output shaft
IP40
IP5x: Dust–protected machine
Ingress of dust is not totally prevented but dust does not enter
insufficient quantity to interfere with satisfactory operation of the
machine.
IPx4: Machine protected against splashing water
Water splashing against the machine from any direction shall have
no harmful effect.
Test conditions of IPx4 are as follows. (In case of using the
equipment of Figure 5, IEC34–5)
Nozzle dimensions: Refer to Figure 5, IEC34–5.
Delivery rate: 10"0.5 1/min
Water pressure at nozzle: approximately 80–100kPa (0.8–1.0
bar)
Test duration per m
2
of surface area of machine: 1 min
Minimum test duration : 5 min
Distance from nozzle to machine surface: 300–500 mm
IP4x: Machine protected against solid objects greater than 1mm
Ingress of solid objects exceeding 1 mm in diameter
IPx0: Non–protected machine
No special protection against water
CAUTION
As above mentioned IPx4 motors are tested and certificated
in short duration time and pure water. Also possibility of
water dry after the test is taken into consideration.
Liquids other than water or continuous supply of water may
make harmful influence.
J.3
DEGREES OF
PROTECTION