Protective functions and safety features
Protective functions | ||
|---|---|---|
Insulation resistance | > 500MOhm | In the delivery state between the mains power connection and signals, measured with 500 Vdc |
> 500MOhm | In the delivery state between the mains power connection and the housing, measured with 500 Vdc | |
> 500MOhm | 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. |
Protection class | N/A | Install the buffer module according to the rules of Class III |
Protection class / ingress protection | IP 20 | EN/IEC 60529 |
Overtemperature protection | - |
|
Output overvoltage protection | Typ. 58Vdc | 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. |
Internal input fuse | - |
|
Overvoltage protection at the input | Max. 60Vdc | Device not damaged or defective |
Reverse polarity protection at the input | Max. -60 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. | |