Mean well 240w single output switching power supply with pfc sp 240 series mean well sp 240 24 the mean well sp 240 24 is a 240w single output power supply with pfc function from the sp 240 series this universal ac input enclosed switching power supply is highly reliable and has a built in fan speed control this psu has a wide voltage input range of 88 to 264v ac and 124 to 370v dc making it ideal for worldwide use it is compact in design and ideal for automated machines and applications