Data Sheet for Product

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Siemens Climatix controller POL424.70/STD A6V10421228_en--_c
Smart Infrastructure 2021-09-10
Engineering notes
In order to protect against accidental contact with relay connections at voltages
above 42 V
eff
, the device must be installed in an enclosure (preferably a control
panel). It must be impossible to open the enclosure without the aid of a key or tool.
AC 230 V cables must be double-insulated against safety extra-low voltage (SELV)
cables.
Do not mix SELV / PELV and line voltage on the same terminal.
Use external protection for inductive load of relay outputs.
Use external fuse for over current protection of relay and triac outputs.
Avoid negative voltage on analog inputs, because the measured ADC values are
undefined. The accuracy of the 10 V analog inputs is valid for values above
100 mV.