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Protection Features
Protection Features
Check out our PSUs 101 article to learn more about PSU protection features. Our protection features evaluation methodology is described in detail here.
| Protection Features | |
| OCP | 12V: 75.6A (140%), 12.13V 5V: 27.8A (139%), 5.028V 3.3V: 27.8A (139%), 3.312V 5VSB: 6.2A (206.67%), 4.964V |
| OPP | 907.2W (139.57%) |
| OTP | ✓ (200°C @ 12V heat sinks) |
| SCP | 12V: ✓ 5V: ✓ 3.3V: ✓ 5VSB: ✓ -12V: ✓ |
| PWR_OK | Operates properly |
| NLO | ✓ |
| SIP | Surge: MOV Inrush: NTC thermistor & bypass relay |
OCP triggering points on the +12V, 5V, and 3.3V rails, along with the over power-protection, are set high at around 140%. Normally we'd expect limits in the 130% range to product the platform against damage. But it appears that Seasonic is super confident in this PSU's capabilities, so it added an extra 10% headroom.
The over-temperature protection feature seems like it's set high as well. Most likely, though, the thermistor that sends data to the corresponding circuit is installed on the PCB's solder side, so the +12V heat sinks have to get exceptionally for OTP to trigger.
Finally, there is short circuit protection on all rails, and the inrush protection circuit includes a bypass relay.
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