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11.2.1 Reference to UL
The electrical supply must only be made via SELV/PELV circuits�
Supply of the device to limited energy according to chapter 9�4 UL 61010-1�
The external circuits have to be isolated as required by figure 102 in UL 61010-2-
201�
The device is designed to be safe at least under the following conditions:
• Indoor use
• Altitude up to 2000 m
• Maximum relative humidity 90% RH, non-condensing
• Pollution degree 3
• For connecting the device and the IO-Link devices use UL certificated cables of
• category CYJV 2/7/8 having suitable ratings�
• IP class was not evaluated by UL�
• No special treatment is needed for cleaning the device�
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