Check out our PSUs 101 article to learn more about PSU protection features.
Our protection features evaluation methodology is described in detail here.
|OCP||12V: - 5V: 28.1A (140.5%) 3.3V: 27.3A (136.5%) 5VSB: 4.1A (136.7%), 79.86mV Ripple|
|OTP||Yes (>130°C secondary heat sink)|
|SCP||12V: Yes 5V: Yes 3.3V: Yes 5VSB: Yes -12V: Yes|
|SIP||Surge: MOV Inrush: NTC thermistor & bypass relay|
OCP's triggering points are quite high on the minor rails, though this won't create any trouble since load regulation and ripple suppression are kept under control. However, at 5VSB, ripple with 4.1A is higher than the specification allows, while with only 0.1A lower load it's normal again. Seasonic should look into this and fix it. Lastly, the OPP is set really high. Then again, the PSU doesn't have any problems under almost 1.2kW of load (at normal ambient temperatures, at least).
The other protection features operate properly. OTP is notably present and configured at an optimal level, allowing the PSU to run even under 50°C temperatures per the ATX specification's recommendation.