The MBC600 Series of open frame power supplies feature a wide universal AC input range of 90 277 VAC, offering 600 W of output power in a compact footprint. The MBC Series is designed and approved to the latest medical standards (EN/IEC 60601-1), providing 2 x MOPP isolation for Class I & Class II applications. These power supplies are ideal for medical, telecom, datacom, industrial equipment and other applications. 600 W standard, 420 W convection cooled Size: 5.0 x 8.0 x 1.6 (127.0 x 203.2 x 40.6 mm) High efficiency up to 94.0% Universal input voltage range: 90-277 VAC Active power factor correction (PFC) Less than 5 W dissipation at standby mode Parallel operation with active current sharing Digital control for circuit loop and power management Fully protected (OTP, OCP, OVP, SCP) Power Management Bus for control, programming and monitoring Designed to meet Class B per CISPR 22 and EN 55022 CE marked LVD Diagnostic Equipment Home Health Care Drug Pump Monitoring Devices Dialysis Imaging Equipment Ultrasound Hospital Beds Surgical Device Therapy Devices 2 MBC600 Series MBC600-1012G 12 V 35.0 A 50.0 A 0 A 1% 2% MBC600-1024G 24 V 17.5 A 25.0 A 0 A 1% 2% MBC600-1048G 48 V 8.8 A 12.5 A 0 A 1% 2% V (all models) 12 V 1.0 A 1.0 A 0 A 1% 20% fan Vsb (all models) 5 V 1.0 A 1.0 A 0 A 2% 2% NOTES: 1. Peak current rating on V1 (main output) is 120% of max, lasting 3 seconds with max of 10% duty cycle. 2. Combined output power of V1 plus fan supply and standby supply should not exceed max power rating. 3. +/-20% tolerance of Vfan includes the factors of set point accuracy, line and load regulation. 4. Air flow over long edge (either direction) required for air flow rating. See mechanical drawing. 5. More than 800K hours MTBF is to be calculated according to Bellcore TR-332 standard current edition at 25 C. The MBC600 SERIES AC-DC/DC-DC power supply can operate using AC or DC input. It is a highly efficient front-end power supply. The PFC stage adopts an analog controller in continuous conduction mode to achieve high power factor and high efficiency. The DC/DC stage is fully DSP controlled and employs soft switching resonant techniques in conjunction with synchronous rectification for high efficiency and better thermal control. With a wide input operational voltage range and minimal linear derating of output power with temperature, the MBC600 SERIES maximizes power availability in demanding server, network, and other high availability applications. The supply is convection cooled or fan cooled and ideally suited for integration with a matching airflow path. An active OR-ing MOSFET on the output ensures no reverse current and renders the supply ideally suited for operation in redundant power systems. The always-on standby output Vsb (5 Volts) provides power to external power distribution and management controllers. It is protected with an active OR-ing diode for maximum reliability. In addition, the Power Management Bus allows full monitoring of the supply, including input and output voltage, current, power, and internal temperatures. Current share signal (V1 I ) is used for current share sharing, and the difference between two units is within 2.5 A if system load is more than 25% of full load. The current share signal (V1 Ishare) voltage shall be a linear function Vcs = 8 x Iout/Imax for a single power supply. Example: for MBC600-1012G, VCS is 8 V at 50 A loading Imax is 50 A of MBC600-1012G. Figure 1. MBC600 Series Block Diagram tech.support psbel.com