Which rating are you talking about?
- The Nominal Discharge Current (In) – the peak value of current, through the surge protective device (SPD) remains functional after 15 surges.
- The Short Circuit Current Rating - the amount of “available” current that the SPD can be subjected to and safely disconnect from the power source under short circuit conditions.
- something else?
The Generac SPD my standby generator installer installed as a NDC rating of 20kA and a SCCR rating of 200kA.
- The Nominal Discharge Current (In) – the peak value of current, through the surge protective device (SPD) remains functional after 15 surges.
- The Short Circuit Current Rating - the amount of “available” current that the SPD can be subjected to and safely disconnect from the power source under short circuit conditions.
- something else?
The Generac SPD my standby generator installer installed as a NDC rating of 20kA and a SCCR rating of 200kA.