PRBX DBA1200 Series AC/DC Power Supply
The PRBX DBA1200 Series AC/DC Power Supply is a powerful and versatile solution for industrial, defense, and railway applications. Delivering up to 1200W of power, it ensures efficient and reliable performance in demanding environments. Key features include a wide input voltage range (85–264V AC, 120–350V DC) with Power Factor Correction (PFC) f...
Read MoreThe PRBX DBA1200 Series AC/DC Power Supply is a powerful and versatile solution for industrial, defense, and railway applications. Delivering up to 1200W of power, it ensures efficient and reliable performance in demanding environments.
Key features include a wide input voltage range (85–264V AC, 120–350V DC) with Power Factor Correction (PFC) for enhanced energy efficiency, and 1 to 6 configurable isolated outputs (2–54V DC) to suit diverse application needs. The DBA1200 Series incorporates advanced protection features, including overvoltage, overcurrent, thermal safeguards, and input over/under voltage lockout, ensuring safe and dependable operation. Fully compliant with MIL-STD-810E for shock and vibration and MIL-STD-461E for EMI, it meets stringent requirements for durability and low electromagnetic interference.
Encased in a low-profile design, the power supply is engineered to operate in extreme conditions, with a conduction-cooled baseplate supporting up to +100°C and an optional extended range of -40°C to +100°C. Rugged construction options, such as conformal coating and IP-rated enclosures, provide additional protection for harsh environments.
The PRBX DBA1200 Series AC/DC Power Supply is the ideal choice for efficient, adaptable, and high-power conversion in mission-critical systems.
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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
Specifications
| INPUT | |
|---|---|
| Operating input voltage | 85-264VAC. 120-350VDC. |
| Frequency | 44Hz min, 50Hz typ, 440Hz max. |
| Power factor | 0.96 typ, 230VAC, 50Hz, Pnom |
| Input current | 16A at Vin min. |
| No-load input power | 15W at Vin typ. |
| Peak inrush current | 4A Vin max. |
| Start-up time | 3s typ. |
| 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. |
| OUTPUT | |
|---|---|
| Output Voltage | See Selection Table |
| 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 temperature | -20°C to +71°C, see derating (T-option -40°C). |
| Heatsink temperature | -20°C to +71°C, see derating (T-option -40°C). |
| Storage temperature | -40°C to +125°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 to be ordered |
| GENERAL | |
|---|---|
| Electric strength | Input to earth 1500Vrms Input to output 3000Vrms Output to earth 500Vrms |
| Insulation resistance | >100Mohms. |
| Dimensions | 255 x 127 x 40mm |
| Case | Aluminum natural. |
| Weight | 1500g without heatsink. |
| OPTIONS | |
|---|---|
| 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. |
| STANDARDS | |
|---|---|
| Safety standards | Built to meet IEC60950-1, EN60950-1. |
| 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 | Meets EN61000-3-3. EN61000-4-3, -6, -11. |
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.