Smart HelSys

-48VDC Rack Mount Rectifier System up to 3kW

Smart HelSys system is a compact and intelligent power system, it can house up to 3 rectifiers of 1kW and 1X Hel-SC501 controller. Integrated DC system capability with controller and distribution module options, allow customers to have a complete DC Power System in 1U height.

Smart HelSys system is designed for a wide range of telecommunication applications such as fibre optic network, satellite communication ground station. transmission equipment, mobile communications and 5G base station/micro base station.


  • The rectifier uses the active Power Factor Compensation (PFC) technology, the power factor is up to 0.99.
  • The system has a wide AC input voltage range: 80Vac ~ 300Vac. Vin≥154V, Output Power is 1000W 
  • The rectifier uses soft switching technology, the efficiency is up to 95%.
  • The rectifier safety design complies with UL and CE standards.
  • The monitoring module has perfect battery management. The management functions include the LLVD, BLVD, temperature compensation, auto voltage regulation, current limitation, battery capacity calculation and on-line battery test, etc.
  • The monitoring module can save up to 1000 pieces of historical alarm records.
  • The system has complete fault protection and fault alarm functions.
  • Front access and front connection. High convenient for installation and maintaining.
  • Smart HelSys System provides multiple communication ports (such as RS232, Ethernet and dry contacts), which enables flexible networking and remote monitoring.

Series Table

ModelMax PowerDC DistributionRectifier
Smart HELSYSN1540180R483kWLoad MCBs 4*30A
Battery MCBs:1*50A+1*30A
Front operation
SP III 48/1000HE
Smart HELSYSN2540180R483kWLoad fuses: 6*15A
Battery fuses:2*30A(parallel)
Front operation
SP III 48/1000HE
Smart HELSYSN1360180R482kWLoad MCBs: 6*30A
Battery MCBs:1*50A+1*30A
Front operation
SP III 48/1000HE

Specifications Table

AC Input85Vac-300Vac
Input Current≤7A   (Per  1000w rectifier)
THDi<5%@full load
<10%@half load
Rated input and output voltage
Output Voltage-53.5V Rated output voltage
-53.5V float voltage
-56.4V boost voltage
Output Current≥54A
Voltage Regulation≤±1%
Current Sharing≤±5%
Ripple and Noise≤200mV Peak-Peak
FunctionOperation information acquirements, battery and system management, system alarm, communicate with control center related ports
Contacts6 relay outputs
Digital Input6
Temp Sensor2
Other Specifications
Operating Temperature-40℃ to +70℃ (-40℉ to +167℉)
-40℃ to +85℃ (-40℉ to +185℉)
HumidityOperating: ≤90% non- condensing
Storage: ≤95% non-condensing
Dimensions(mm)482.6W (19’’) x 44.4H (1U)x 280D
Weight≤5kg(Without rectifier)

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