Preliminary Description The DBA series, very compact and low profi le AC/DC power supply up to 1200W in chassis format, incorporates input filtering, input and output protections, very robust mechanical mounting and connection, conformal coating and MIL-STD options required in most of the severe environment for industrial, defense applications. The psu provides high reliability, high efficiency, input-to-output isolation, soft start and active very low inrush circuit, overtemperature protection, input over/ undervoltage lockout. The psu is configurable with 1 to 6 outputs in many output voltages from 2V to 54VDC, other outputs are even possible as semi-standard versions. They are continuously short-circuit proof. The 100°C baseplate allows operation in high temperature environment. Features 85-264VAC or 120-350VDC input voltage ranges 1-6 isolated outputs up to 1200W 255 x 127 x 40mm very low profile Power Factor Correction EN61000-3-2 Active very low inrush limitation Surge and transient protection Many output configurations available Conduction cooled 100°C baseplate. No derating Safety IEC/EN 60950-1, RoHS lead-free-solder compliant Options Description MIL-STD ruggedized (-M) Meet MIL-STD 461E CE102, MIL-STD 1399-300A, MIL-STD810E shock & vibrations. No laboratory certification. -40°C operation (-T) The thermal grade of the DC/DC converters used and other components are changed to comply with low ambient temperature. Conformal coating (-V) During manufacturing process , when V option is specified, components and pcb are covered with an acrylic coating to address high level of ambiant humidity application. Heatsink (-H, -H1) -H: a 15 mm heatsink is mounted on the baseplate with longitudinal fins. -H1: a 15 mm heatsink is mounted on the baseplate with transversal fins. Electrical Input Data Operating input voltage 85-264VAC. 120-350VDC. Frequency 44Hz min, 50Hz typ, 440Hz max. Power factor 0.96 typ, 230VAC, 50Hz, Pnom. No-load input power 15W at Vin typ. Peak inrush current 4A Vin max. Input fuse A fuse mounted inside the psu protects against damages in case of a failure. Fuse type Littlefuse, 15A, 0218015.MXP. Transient protection Yes. POWERBOX Defense Line 1200 DBA Series 1200W AC/DC Conduction Cooled Parallel operation Possible. Redundant operation Requires external oring diodes. Hold-up time Yes. Output current limitation All outputs are protected against short circuit, automatic recovery. Thermal considerations Baseplate should not exceed 100°C. Thermal protection OTP protection, automatic restart. Overvoltage protection Incorporated on each output. Remote on/off An isolated INHIB signal disable corresponding output voltage when connected to RTN. Overvoltage adjustment 90-110%Vnom. Remote sense V1, V2, total drop <0.5V, positive line drop <0.25V. Auxiliary bias voltage Limited to 200mA. Paralleling signal Parallel only identical outputs (voltage and power). Environmental Operating ambient temp. -20°C to +71°C, see derating (T-option -40°C). Heatsink temperature -20°C to +100°C (T-option -40°C). Damp heat MIL STD 810 Proc. 507-2. Shock MIL STD 810 Proc. 516.3 Vibrations MIL STD 810 Proc. 514-5. MTBF MTBF calculation for a specific part number has General Electric strenght Input to earch 1500Vrms. Input to output 3000Vrms. Output to earth 500Vrms. Insulation resistance >100Mohms. Case Aluminum natural. Weight 1500g without heatsink. Standards Safety standards Built to meet IEC60950-1, EN60950-1. EMC Surges Built to meet EN61000-4-5, 1kV, Criteria B. 2kV, Critiera A. Electrostatic discharge Built to meet EN61000-4-2, 8000V, Critiera B. Fast transients/burst Built to meet EN61000-4-4, 4000V, Critiera B. Harmonics Built to meet EN61000-3-2. Flickers Built to meet EN61000-3-3.

POWERBOX Defense Line 1200 DBA Series 1200W AC/DC Conduction Cooled Output Characteristics Output voltage Trim range Overvoltage protection Output noise Efficiency Load regulation 2M board Output current Max power Output power limit M board Output current Max power Output current limit m board Output current Max power Output current limit p board Output current Max power Output current limit Unit V V V mVpp % % Conditions min typ max min typ max min typ max min typ max min typ max min typ max min typ max Each board include 2 identical M modules in parallel for high power...

POWERBOX Defense Line 1200 DBA Series 1200W AC/DC Conduction Cooled Block Diagram POSITION A ACTIVE INRUSH CURRENT LIMITING + PFC

POWERBOX Defense Line 1200 DBA Series 1200W AC/DC Conduction Cooled

POWERBOX Defense Line 1200 DBA Series 1200W AC/DC Conduction Cooled

POWERBOX Defense Line 1200 DBASeries 1200W AC/DC Conduction Cooled Input screw type connector GMKDS 3/3-7.62_ Output 2M-board power connectors_ Output M-board power connectors_ Output m-board power connectors_ Output p-board power connector 6 Pins Male_ Signals Wurth 690368191472 Female Male 2*7 pins_