Featuring a wide 4:1 input range of 18 to 75VDC, the 400W FCM series from Calex has output voltages of 5, 12, 24, 28 and 48VDC. All models have isolated input to output and are housed in a rugged, encapsulated enclosure with recessed barrier strips. The operating temperature range is -40 to 100ºC. Through holes are provided for backplane mounting or heatsink attachment for extended temperature operation. Under voltage lockout, pulse by pulse current limiting, over-temperature protection, output overvoltage protection, input reverse voltage protection and over-current protection are standard. The output voltage accuracy for all output voltage options is ± 1%. Typical line and load regulations are 0.05 and 0.02% respectively. All models exhibit 0% turn-on overshoot. Efficiencies are up to 93%. Remote trim, sense and remote ON/OFF is available on all models. The trim range is -25 to +10%. All models are available with RoHS or non-RoHS construction.