UL60950-1, TUV EN60950-1. UL/cUL recognised, TUV, CB. Power derates above 50°C. MTBF to MIL-HDBK-217F. 5. HRPG-600 Series Single Output Power Supply with PFC Function. High efficiency, long life and high reliability No load power consumption ;0.75W Built-in active PFC function Built-in cooling fan ON-OFF control Built-in DC OK signal Built-in remote sense function Built-in remote ON-OFF control Short circuit, over load, over voltage and over temperature protection Withstands 300Vac surge input for 5 seconds Power factor correction to EN61000-3-2,-3 EMC compliance to EN55022 class B