JUMO 902931 Wtrans Receiver with Wireless Data Transmission Operating Manual - Manual (Page 31)

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5 Electrical connection
5.1 Installation notes
• The choice of cable material, the installation, and the electrical connection of the device
must conform to the requirements of VDE 0100 "Regulations on the Installation of Power
Circuits with Nominal Voltages below 1000 V" or the appropriate local regulations.
• Electrical connection must be performed by qualified personnel.
• The device is intended for installation in control cabinets, machines, or plants. Ensure that
the fuse protection at the site does not exceed 20 A. Disconnect the device from the mains
voltage on all poles prior to starting service or repair work.
• The load circuit must be fused for the maximum relay current in order to prevent the output
relay contacts becoming welded in the event of a short circuit at that point.
• The electromagnetic compatibility conforms to the standards and regulations cited in the
technical data.
• Route the input, output, and supply cables so that they are physically separated and not in
parallel with one another.
• Probe and interface cables should be shielded cables with twisted conductors. Do not run
cables close to current-carrying components or cables. Ground the shielding on one side.
• Do not connect any additional loads to the supply terminals of the device.
• The device is not suitable for installation in areas with an explosion hazard (Ex areas).
• In addition to a faulty installation, incorrectly set parameters may also impair the proper
function of the following process or lead to damage.