Festo MH1 KBUL Serie Manual De Instrucciones página 2

Solenoid valve/Valve terminal MH...1
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This product is Recognized by Underwriters Laboratories
Inc. as a component. Representative samples of this com-
ponent have been evaluated by UL and meet applicable
UL requirements.
Component recognition information
Product category code YIOZ2 (USA) or
YIOZ8 (Canada)
File number MH19482
Considered standards UL 429, 5th edition,
C22.2 No. 139-1982
Please note
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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.
Only for use in Class 2 Circuits
Uniquement pour utilisation en circuits 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 Vdc 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 Vdc 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.
Extracts )* from the UL report:
Conditions of acceptability
In determining the acceptability of the combination, the
following details should be examined:
– 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.
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– 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.
– These valves are intended to be used on a regulated
pressure system with the maximum ratings as noted on
the device.
– These valves are intended to be used in conjunction
with air tubes with following outside dimensions:
Manifold mounting
Port Air tube Size Torque
[mm] thread [Nm]
1 or 33 4 M7 2.0
3 or 11 (3/2-way)
2 3 M3 0.3
Individual valve mounting
Port Air tube Size Torque
[mm] thread [Nm]
1 or 33 4 M3 0.3
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 above.
– Impact Tests on the thermoplastic fluid-confining parts
were not conducted. In the end-product equipment the
valves shall be suitably enclosed, or mounted in a loca-
tion where they are guarded or protected from impact.
)* taken over essentially without important changes
en