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DC Power - Rectifiers


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  • Wide AC input range for worldwide installation requirements
  • Wide temperature operation for installation in harsh outdoor environments
  • Active load sharing on rectifier level for improved reliability
  • Compatible with 1.6 and 3U high to meet any space or power requirements


A true constant power with 91% typical efficiency (including redundancy diode) for this 1800W rectifier demonstrates the combination of the long experience of Alpha Innovations for distributed power architecture with the latest developments in technology to offer 5400W in a 2U high power shelf or 10800W in 3U space. It also supplies more current at low voltages, a real need when batteries are discharged.
The units are perfect solutions for both indoor and outdoor applications and offer a wide range of features to improve control of the system. Beyond the traditional voltage programming, AC and DC fault control, the unit is equipped with a smart derating of the power in regard to internal temperature. Signals include thermal shutdown, AC mains range detection (low or high) over-voltage, module missing - and offer great flexibility of system configuration.
The rectifiers are designed to work in parallel.  Active single wire sharing secures a very good load share among units.
Redundancy diode on the output allows for hot-swap fault tolerant insertion. Each unit is protected against input under- and overvoltage, output overvoltage, smart output power limitation and over temperature.



  • Input Voltage: 150 to 280Vac
  • Input Frequency: 50 or 60 Hz
  • Power factor: 0.99%
  • Max Input Current: 12A
  • Efficiency: 91% typical @ high mains
  • Output voltage:-40 to -57Vdc
  • Output power:
    • 1800W @ high mains
    • 1500W @ low mains (<180Vac)
  • Output current:
    • 33.3A nominal @ high mains
    • 27.8A nominal @ low mains
  • Load and line regulation: <250mV (any combination of load and line)
  • Wide band noise: 5mVrms
  • Psophometric noise: 1mVrms


  • Indicators: 
    • AC mains OK — green LED
    • DC output OK — green LED
    • Thermal Shutdown — red LED
    • Output overvoltage — red LED
  • Protections: 
    • Mains out of range (input fuse)
    • Output overvoltage
    • Output overload
    • Short circuit current
    • Smart power derating
    • Thermal shutdown
    • Hot swap


  • Dimensions: 
    • mm: 128H (3U) x 69W x 325D
    • inches: 5H x 2.7W x 12.8D
  • Weight: 3.2kg (7.05lb)


  • Temperature:
    • Standard: -33 to 55°C
    • Extended: -40 to 70°C
    • De-rated output power: -2%/°C above 55°C
    • Storage: -40 to 85°C
  • Humidity:
    • Operating: 30 to 90% RH non-condensing
    • Storage: 10 to 95% RH non-condensing
  • Elevation: Up to 2000m
  • Cooling: Fan cooled (front to rear)


  • Safety:
    • CE marked
    • EN60950
  • Environment: RoHS compliant

Standard Part Numbers

9411 011 85012

Related Items

  • DC Power - Basic Shelves
  • ACE186High Power 6 x 1800W Energy System

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