MINI MCR-2-UI-I-OLP(-PT)(-C)
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5 Safety regulations and installation notes
5.1 Installation notes
• The category 3 device is suitable for installation in
potentially explosive area zone 2. It fulfills the
requirements of EN 60079-0:2012 and EN 60079-
15:2010.
• Installation, operation, and maintenance may only be
carried out by qualified electricians. Follow the
installation instructions as described. When installing
and operating the device, the applicable regulations
and safety directives (including national safety
directives), as well as generally approved technical
regulations, must be observed. The safety data is
provided in this package slip and on the certificates
(conformity assessment, additional approvals where
applicable).
• While the devices are in operation, contact-dangerous
voltages may be present on the control elements. For
this reason parameterization, conductor connection,
and opening of the module lid are allowed only when
devices are in a de-energized state unless the
connected circuits are exclusively SELV or PELV
circuits.
• The device must not be opened or modified. Do not
repair the device yourself, replace it with an equivalent
device. Repairs may only be carried out by the
manufacturer. The manufacturer is not liable for
damage resulting from violation.
• The IP20 protection (IEC 60529/EN 60529) of the
device is intended for use in a clean and dry
environment. The device must not be subject to
mechanical strain and/or thermal loads, which exceed
the limits described.
• The device is not designed for use in atmospheres with
a danger of dust explosions.
• The device complies with the EMC regulations for
industrial areas (EMC classA). When using the device
in residential areas, it may cause radio interference.
• If the device is not used as described in the
documentation, the intended protection can be
negatively affected.
• To protect the device against mechanical or electrical
damage, install it in a suitable housing with appropriate
degree of protection as per IEC60529.
• Provide a switch/circuit breaker close to the device,
which is labeled as the disconnecting device for this
device.
• Provide for a overcurrent protection device (I 4 A) in
the installation.
• There is a double isolation of 300V
eff
between
neighboring modules of the same type oriented the
same way. The device has a base isolation of 150V
eff
to other neighboring modules on the side with the DIP
switch.
• The voltages present at the input, output and supply are
extra-low voltages (ELV). Depending on the
application, dangerous voltage (>30V) against ground
could occur. For this event, safe electrical isolation from
the other connections has been implemented.
• The device must be stopped if it is damaged, has been
subjected to an impermissible load, stored incorrectly,
or if it malfunctions.
• Only use copper connecting cables providing the
permitted temperature range (60°C/75°C).
5.2 Installation in Zone 2
• Observe the specified conditions for use in potentially
explosive areas! Install the device in a suitable
approved housing (with a minimum of IP54 protection)
that meets the requirements of EN 60079-15. Observe
the requirements of EN 60079-14.
• Only devices which are designed for operation in Ex
zone 2 and are suitable for the conditions at the
installation location may be connected to the circuits in
the Ex zone.
• In potentially explosive areas, terminals may only be
snapped onto or off the DIN rail connector and wires
may only be connected or disconnected when the
power is switched off.
• The device must be stopped and immediately removed
from the Ex area if it is damaged, was subject to an
impermissible load, stored incorrectly or if it
malfunctions.
5.3 UL Notes
INDUSTRIAL CONTROL EQUIPMENT FOR
HAZARDOUS LOCATIONS 45FP
1 Suitable for use in class 1, division 2, groups A, B, C and
D hazardous locations, or nonhazardous locations only.
2 WARNING - EXPLOSION HAZARD: Do not disconnect
equipment unless power has been removed or the area
is known to be non-hazardous.
3 WARNING - EXPLOSION HAZARD: Substitution of any
components may impair suitability for Class I, Division
2.
4 This device is open-type and is required to be installed
in an enclosure suitable for the environment and can
only be accessed with the use of a tool or key.
