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Service unit combination
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This product is recognized by UL. Representative samples
of this component have been evaluated by UL and meet
applicable UL requirements.
UL approval information
Product category code
QUYX2 (USA),
QUYX8 (Canada)
File number
E322346 and MH19482
Considered standards
UL61010-1
Safety Requirements for
CAN/CSA-C22.2 No. 61010-1
Electrical Equipment for
Measurement, Control and
Laboratory use
Considered standards Electri-
UL429
cally Operated Valves
CAN/CSA C22.2 No. 139
UL mark
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Fitting and commissioning is to be carried out by quali-
fied personnel only in accordance with the operating
instructions.
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.
Technical data
Power
max. 24 V DC +/-10 %
Fluids
Air or inert gas
Only MS4(N)/MS6(N)-..., MSB4(N)/MSB6(N)-...
Maximum body pressure
10 bar (1.0 MPa, 145 psi)
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Extracts )* from the UL report:
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 exceed-
ing 8 A 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
Note
limit the available current.
Note that, when more than one power supply or isolating
device is used, connection in parallel is not permitted.
Conditions of acceptability:
For use only in or with complete equipment where the
acceptability of the combination is determined by Under-
writers Laboratories Inc. When installed in an end-pro-
duct, consideration must be given to the following:
– This component has been judged on the basis of the
creepage and clearances required in the indicated stan-
dards, which would cover the component itself if sub-
mitted for listing: UL 61010-1, CAN/CSA 22.2 No.
61010-1.
– The end-product shall consider that the devices were
investigated as regulating controls without any calibra-
tion tests.
– The unit is considered acceptable for use in a max. am-
bient of 60 °C/140 °F.
)* taken over essentially without important changes
en
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