DRC-60B is a 59.34W 27.6V 1.4A DIN Rail power supply with secondary 27.6V 0.75A charger output, for use as the power supply for backup batteries, in security access systems. The unit is of fanless design, has a 90-264VAC input range, efficiency of 87% and air convection cooled operating temperature of -30C to +70C. DRC-60B is designed to be fitted to TS-35/7.5 or TS-35/15 DIN rails and includes an relay contact alarm signal for AC OK and battery low. Other functions include short circuit protection, overload protection, over voltage protection, battery low cut off, battery reverse polarity protection by fuse, and front panel DC voltage adjustment. DRC-60B is also certified to UL, CUL, CB, TUV, CE safety regulations and meets the requirements of IEC60950-1 Limited Power Source (LPS).