Solenoid valve/Valve terminal
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This product is recognized by Underwriters Laboratories
Inc. (UL). Representative samples of this component have
been evaluated by UL and meet applicable UL require-
ments.
UL approval information
Product category code
YIOZ2 (USA) or
YIOZ8 (Canada)
File number
MH19482
Considered standards
UL 429, 5th Edition
C22.2 No. 139 – 1982
UL mark
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Fitting and commissioning to be carried out by qualified
personnel only in accordance with the operating in-
structions.
Such qualified personnel must have several years of
training and experience in installing and commissioning
electrical and pneumatic industrial control systems.
• Please observe the applicable safety requirements
and standards.
Conversion or extension of the product with modules,
for which the Recognized Component Mark of UL does
not apply, will lead to loss of the UL certification.
• Contact Festo if you require information on UL-certi-
fied modules.
Only for connection to a NEC Class 2 supply
Raccorder Uniquement a un circuit de Classe 2
This device is intended to be used with a Class 2 power
source or Class 2 transformer in accordance with UL1310
or UL1585.
As an alternative a LV/C (Limited Voltage/Current) power
source with one of the following properties can be used:
– This device shall be used with a suitable isolating
source such that the maximum open circuit voltage
potential available to the product is not more than
24 V DC and the current is limited to a value not excee-
ding 8 amperes measured after 1 minute of operation.
– This device shall be used with a suitable isolating
source in conjunction with a fuse in accordance with
UL248. The fuse shall be rated max. 4 A and be installed
in the 24 V DC power supply to the device in order to
limit the available current.
Note that, when more than one power supply or isolating
device is used, connection in parallel is not permitted.
en
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Extracts )* from the UL report:
Conditions of acceptability:
In determining the acceptability of these valves in the
end-use, the following shall be determined:
– These valves and valve terminals must be provided with
a suitable electrical enclosure in accordance with the
end-use Standard.
– The supply terminals are not suitable for field-wiring
purposes.
– The suitability of any mating connector must be deter-
mined in the end product.
– These valves have been investigated only for fluid or
vacuum with a flow of compressed air.
Note
– These valves are intended to be connected to a NEC
Class 2 electrical supply only.
– These valves are intended to be used in conjunction
with air tubes with following outside dimensions:
Manifold mounting
Port
Air tube
Size thread Torque
[mm]
1 or 33
4
M7
3 or 11 (3/2-way)
2
3
M3
Individual valve mounting
Port
Air tube
Size thread Torque
[mm]
1 or 33
4
M3
3 or 11 (3/2-way)
2
3
– Torque tests were performed according to ISO 16030,
Pneumatic Fluid Power – Connections – Ports and Stud
Ends, first Edition dated December 15, 2001, Table 3.
Values are specified in the tables above.
– Impact Tests on the thermoplastic fluid-confining parts
were not conducted. In the end-product equipment the
valve shall be suitably enclosed, or mounted in a loca-
tion where it is guarded or protected from impact.
)* taken over essentially without important changes
en
[Nm]
2.0
0.3
[Nm]
0.3
