The CSD-DRC-180A is a 180W DIN rail-mounted AC/DC power supply from MEAN WELL with integrated UPS functionality. It delivers 13.8VDC at 9A for system loads and includes a 4A battery charger output. Designed for 12V systems, it automatically switches to battery backup during AC power failure and recharges the battery when mains power returns. With wide input range (90-264VAC), alarm signals for AC OK and battery low, and compact design, it's ideal for industrial and security applications