TECHNICAL DATASHEET Chrome DC-UPS Module 24 V 10 A / DRU-24V10ACZ Highlights & Features Suitable for 24 V system up to 10 A Zero switch over time from loss of DC input to battery operation Built-in diagnostic monitoring for DC OK, Discharge and Battery Fail by relay contacts Full power over entire operating temperature range from -20C to +60C LED indicators for DC OK, Battery Charging, Battery Discharging, Battery Fail and Battery Reverse Polarity High MTBF > 500,000 hrs. as per Telcordia SR-332 Certified according to IEC/EN/UL 62368-1 Safety Standards CB Certified for worldwide use Model Number: DRU-24V10ACZ Unit Weight: 0.14 kg (0.31 lb) Dimensions (L x W x D): 91.0 x 71.0 x 55.6 mm (3.58 x 2.80 x 2.19 inch) General Description Deltas Chrome DC-UPS module is designed to use in small cabinets where space is very critical. The module requires less installation space due to its flat body with depth of only 55.6 mm, 71 mm wide and 91 mm tall. The tough plastic case has flame retardant property certified to UL 94V-0 specification. The module supports 24Vdc system with external battery up to 12 AH capacity and comes with potential free contacts for battery management signals and LED indicator for battery status. The highly efficient convection cooled design is certified to major safety approvals including IEC/UL 60950-1, IEC/EN/UL 62368-1 and UL 508, which allows the module to be used reliably in most industrial applications. Model Information Chrome DC-UPS Module Model Number Input Voltage Range Rated Output Voltage Rated Output Current 24-28 Vdc 24 Vdc typ. (Depends on V ) 10.0 A Max DRU-24V10ACZ in Model Numbering DR U 24V 10A C Z DIN Rail DC-UPS Module Output Voltage Output Current Chrome Series Z Black Plastic Case, without Class I, Div 2 All parameters are specified at 25C ambient unless otherwise indicated. 1 www.DeltaPSU.com (October 2021, Rev. 04) TECHNICAL DATASHEET Chrome DC-UPS Module 24 V 10 A / DRU-24V10ACZ Specifications Input Ratings / Characteristics Nominal Input Voltage 24 Vdc Input Voltage Range 24-28 Vdc Input Current Charging Mode 0.5 A 0.1 A Charging Time* < 30 hr 5hr for battery 24 V/12 AH Efficiency Charging Mode > 80.0% Buffering Mode > 99.0% Max Power Dissipation Standby Mode < 1 W Charging Mode < 3.5 W Buffering Mode < 1 W *Charging time depends on the last state of discharged battery w.r.t. buffering time and load current. Output Ratings / Characteristics Output Voltage Range 23-28 Vdc Output Current 10.0 A Max Output Power 240 W Max (24 V, 10 A) Voltage Drop Between Input and Output Charging Mode 0.2 V between DC input to load Buffering Mode 0.3 V between battery to load 10 A load Battery Input / Output Characteristics Nominal Battery Voltage 24 Vdc, SLA Sealed lead acid battery 2 x 12Vdc, SLA Sealed lead acid battery Battery Voltage Range 23-28 Vdc (continuously operating) 33 Vdc Max (the maximum voltage that will not cause damage to the unit) 20 Vdc Min (the voltage level of battery to enable BAT Fail function) Battery Capacity 3.3 AH to 12 AH Battery Fuse Auto 15 A / 58 V, MINI (Littelfuse) or similar in the battery path. The battery fuse protects the wires between the battery and the unit. Battery Charging Mode CC-CV mode (constant current-constant voltage) at 0.5 A End-of-Charge Voltage The unit always charges with fix input voltage value All parameters are specified at 25C ambient unless otherwise indicated. 2 www.DeltaPSU.com (October 2021, Rev. 04)