DRA-40 is one 40W AC/DC DIN rail power supply, featuring the adjustable output current. Users are able to easily change the constant output current level, via 1 ~1 OVdc, PWM signal or résistance. DRA-40 can be mounted on DIN rail TS-35/7.5 or 15; in addition, the width of the unit is only 40mm that it is well suited for the installation in a limited spacing. DRA-40 accepts the uni versai AC input between 90VAC and 264VAC; the efficiency is up to 87% that the entire sériés can operate, under free air convection, from -30°C through 70°C.