Accepting universal 90-265 Vac or 120-370 Vdc supply voltages, DIN rail-mount SPD Series produces output power from 5-240 W. Potentiometer is included for fine-tuning dc output voltage, and diagnostic LEDs alert user when output voltage is ready for use or output voltage is too low. Depending on model, power supply is available in metal or plastic housing from 22.5-83 mm wide and has spring or screw terminals, internal noise filtering, and short circuit protection.