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What do the PSU safety protection abbreviations mean?

There are many possible safety protections a PSU can have. Below is a list of what each abbreviation means. Please note, not all PSUs have all safety protections.

OCP - Over-Current Protection

OVP - Over Voltage Protection

UVP - Under Voltage Protection

SCP - Short Circuit Protection

OPP - Over Power Protection

OTP - Over Temperature Protection

UL - Underwriters Laboratories, more information.

TÜV - Technical Inspection Association, more information.

CE - European Conformity, more information.

FCC - Federal Communications Commission, more information.

RoHS - Restriction of Hazardous Substances Directive, more information.

WEE - Electronic waste, more information.

80 PLUS - Promotes energy efficiency for PC power supplies, more information.

ErP - Energy Related Products, more information.

More information on certification marks can be found here.


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