
15/89 Device handbook A
PLUS
with / without LED display
,
157
679-19, 04/2016
5. Electrical connections
Ensure under all circumstances that the leads are free of potential
when connecting them !
5.1 General safety notes
Please observe that the data on the type plate must be adhered to !
The national provisions (e.g. in Germany VDE 0100 “Conditions concerning the erection of heavy
current facilities with rated voltages below 1000 V”) have to be observed in the installation and material
selection of electric lines!
Nameplate of a
device equipped
with RS485
interface and I/O
extension 1
Symbol
Meaning
Device may only be disposed of in a professional manner!
Double insulation, device of protection class 2
CE conformity mark. The device fulfills the requirements of the applicable EU
directives.
Products with this mark comply with both the Canadian (CSA) and the American (UL)
requirements.
Caution! General hazard point. Read the operating instructions.
General symbol: Input
General symbol: Output
CAT III
Measurement category CAT III for current / voltage inputs and power supply
CAT II
Measurement category CAT II for relay outputs