The CSD-DRS-240-12 is a 240W DIN rail-mounted AC/DC power supply from MEAN WELL with integrated UPS functionality. It delivers 12VDC at 20A for system loads and includes a 15.4A adjustable charger output for 12V lead-acid or lithium-ion batteries. Designed for industrial and security applications, it features wide input range (90-305VAC), programmable charging curves, alarm signals (AC Fail, Battery Low, Charger Fail, DC OK), and optional MODBus or CANBus interfaces for remote monitoring.