TECHNICAL DATASHEET Medical AC-DC Open Frame Power Supply 12 V 250 W with 5 V/0.5 A Standby / MDS-250A series MDS-250A Series Highlights & Features Safety Approvals to IEC 60601-1 3.1rd ed. & IEC 62368-1 Compliant with IEC 60601-1-2 4th Ed. Requirements Up to 150 Watt Convection Up to 500 K Hrs MTBF Suited for Type BF Medical Products 2 MOPP isolation Safety Standards CB Certified for worldwide use Model Number: MDS-250A Unit Weight: 405 g (MDS-250APB12) 610 g (MDS-250ADB12) Dimensions (L x W x H): 127.3 x 76.5 x 36.1 mm 5 x 3 x 1.4 inch (MDS-250APB12) 140.0 x 88.9 x 44.4 mm 5.5 x 3.5 x 1.75 inch (MDS-250ADB12) General Description 3 Deltas new MDS-250APB12 open frame design offers a high energy density (12 Watts/in ) 3 x 5 inch design for Type BF patient access medical products. With operating parameters of 90 to 264 Vac universal input voltage, temperatures of -10 to +70 degrees centigrade, and altitudes of up to 5000 meters (16,400 feet), the design is well suited for a variety of both medical and non-medical applications. Other features include input surge of 300 Vac, low leakage current, no-load input power < 0.5 Watt, and 500 K hour MTBF. This product is certified for EMC standards EN/BS EN 55011 for industrial, scientific and medical (ISM) radio-frequency equipment, and EN/BS EN 55032 for Industrial Technology Equipment (ITE) radio-frequency equipment. In addition, only recognized Japanese capacitors are used to ensure long product life. An enhanced feature set, includes a 5 Volt/0.5 amp standby output, remote on/off, remote sense, and a power good signal that are included as part of the standard product. The design, which has protection against shock compliant with 2XMOPP and Type BF requirements, has both medical (with risk report available), and ITE safety approvals, including cURus(US&Canada) /TUV/GB(China) plus, CB certificates with all national deviations. Full compliance with RoHS Directive for environmental protection is included. The unit comes in a standard 3 x 5 inch footprint, with height suitable for 1U applications. Robust terminals are capable of multiple connections of the main output to the end product. Enclosed assembly is available option. Model Information (All with 5 V/0.5 A standby available) Model Number Input Voltage Output Voltage Convection Current Forced Air Current Output Output 90-264 Vac 12 Vdc 0-12.5 A 0-20.84 A (with 10 CFM forced air MDS-250APB12 90-264 Vac 12 Vdc 0-11.25 A 0-20.84 A (with 10 CFM forced air MDS-250ADB12 (Enclosed cover) MDS 250 A B 12 Delta Medical Max wattage in the Family Code Product Type Input Type Code Output Voltage AA: With Remote On/Off Power Supply product series. A Z P:Open Frame B: 3pin Class I 12 for 12 V AB: Without Remote On/Off 250 250 W D: Enclosed Refer to page. 9 All parameters are specified at 25C ambient unless otherwise noted. 1 www.DeltaPSU.com (September 2021, Rev. 16) TECHNICAL DATASHEET Medical AC-DC Open Frame Power Supply 12 V 250 W with 5 V/0.5 A Standby / MDS-250A series Specifications Input Ratings / Characteristics Nominal Input Voltage 100-240 Vac Input Voltage Range 90-264V ac Nominal Input Frequency 50-60 Hz Input Frequency Range 47-63 Hz Input Current (max) 3.5 A Input Surge Voltage (max) 300 Vac for 100 ms Full load Efficiency (typ.) 89.45% 115 Vac/60 Hz 90.50% 230 Vac/50 Hz, Reference Fig.1 Standby Power (max) 0.5 W (Inhibit signal high, 24 volt turned off) 115 Vac/60 Hz, 230 Vac/50 Hz Inrush Current (max) 40 A 230 Vac, cold start 1) 1) Input-PE(protective earth) leakage current (max) 0.1 mA NC , 0.3 mA SFC 1) 1) Output-PE(protective earth) leakage current for Type BF application (max) 0.1 mA NC , 0.5 mA SFC Power Factor (min) 0.9 115 V/50 Hz, 230 V/50 Hz, full load 1) NC: normal condition, SFC: single fault condition Leakage Current Input-PE Leakage Current 100 Vac/60 Hz (Typ) 264 Vac/60 Hz(Typ) Delta Limit IEC60601-1 Limit Normal Condition 17.5 uA 43.5 uA 100 uA max 5000 uA max Single Fault Condition 32.9 uA 90.7 uA 300 uA max 10000 uA max Output-PE Leakage Current for Type BF application Normal Condition 28.5 uA 86.7 uA 100 uA max 100 uA max Single Fault Condition 42.9 uA 128.6 uA 500 uA max 500 uA max Fig.1 Efficiency versus output load All parameters are specified at 25C ambient unless otherwise noted. 2 www.DeltaPSU.com (September 2021, Rev. 16)