Protective functions and safety features
Protective functions | ||
|---|---|---|
Output overvoltage protection | Typ. 32 Vdc | In the event of a defect in the internal buffer module, a redundant circuit limits the maximum output voltage. The buffering stops and automatically attempts to restart. |
Overvoltage protection at the input | Max. 35 Vdc | Device not damaged or defective |
Reverse polarity protection at the input | Max. -35 Vdc | Device not damaged or defective |
Touch current (leakage current) | The leakage current generated by the buffer module itself depends on the input voltage ripple and must be investigated in the final application. With an even DC input voltage, the leakage current generated is less than 100 μA. | |
Protection class / ingress protection | IP 20 | EN/IEC 60529 |
Overtemperature protection | - |
|
Internal input fuse | - |
|
Protection class | N/A | Install the buffer module according to the rules of Class III |
Insulation resistance | > 500 MOhm | In the delivery state between the mains power connection and signals, measured with 500 Vdc |
> 500 MOhm | In the delivery state between the mains power connection and the housing, measured with 500 Vdc | |
> 500 MOhm | In the delivery state between the signal connections and the housing, measured with 500 Vdc | |
PE resistance | < 0.1 Ohm | Resistance between the chassis ground terminal and the housing. |
The buffer module is electrically protected against overload, idling and short circuit.