The PSD series DIN-rail ac-dc power supplies offer single-output 12-, 24- or 48-Vdc with 40 to 60 W of power and universal input of 85 ~ 264 Vac and 120 ~ 375 Vdc. They can reach a high power density of 3.41 W/in³. The power supplies are designed with a metal case, thermal dissipation, stable performance and a narrow width of 32 mm. They can operate at full load under 55 °C. They can withstand 150% peak loading (3 seconds) for when production lines initially are starting up and have a MTBF of greater than 500,000 hours.