Rectifier GR 850

The GR 850 is a singlephase, «hot-pluggable», fan-cooled rectifier. With its exceptional power density (30 W / in³) it offers optimal solutions for the 1 U‘ shelf DC ST801 and the 2 U’ shelf DC ST802 in the power range from 850W up to 5100W.
The small installation depth and the large temperature range are further advantages of this modern rectifier. The high efficiency (up to 95, 2%) guarantees an energy-saving operation. In addition less cooling energy is needed. Due to the temperature- independent fan control, a low noise level is achieved.

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  • Space saving – very high power density
  • Low inrush current
  • Energy saving – High efficiency up to 95,2 %
  • Simple installation – Hot pluggable
  • Low noise level
  • Wide input voltage range 80 … 300 Vrms
  • High reliability
  • Power factor correction
  • Optimized power availability
  • Temperature range -40C°…+70°C
  • 24 months warranty


GR 850
GeneralEfficiency≥ 95,2 %
EMC, radiatedEN 55022, class B
SafetyEN / IEC 60950, UL 60950, CAN / CSA – C22.2
EnvironmentRoHS conform
CoolingFan cooled
Power density30 W/in³
Sound level44 dB(A)
InputVoltage range80 … 300 Vrms
do., red. power80 … 184 Vrms
Inrush current20 Apeak
Current maximum6 Apeak
Harmon. distortion THD< 5 %
Power factorwith PFC~ 1
EMC, grid-boundEN 55022, class B
Supply inputRear / pluggable
OutputVoltage, nominal53,5 VDC
Setting range42 … 58 VDC
Surge protection59 VDC
EMC, grid-boundEN 55022, class A
Current limiting, nom.17.7 ADC
Power limitation850 W
Circuit point outputRear / pluggable
Output protectionInternal fuse
User interfaceStatus displayLED «ok» / LED «COM» / LED «LD» / LED «STA»
Environmental conditionsTemperature-40…+70 °C
With red. power+45…+70 °C
Rel. humidity95% max., without condensation
Dimensions / weightWidth51.8 mm
Height40 mm
Depth247.2 mm
Weight in kg0.6
Control / monitoringSystem controllerORION

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