Sigma+ PCU is a solar power conditioning unit which is a single phase output, Inverter system. It works as a Bi-directional inverter which means power will be exported into the grid or power will be imported from the Grid.
The Sigma+ PCU work in two operating condition:
2. Grid Interactive
Stand-alone: Inverter operates from battery or array power source and produces AC output. Battery charged by solar (primary) & also from grid (secondary). Since usage of power from grid is secondary, grid power is only used when solar power is absent or below a certain level and battery voltage level reduces upto battery low status. Working Modes: Smart, PCU & Hybrid
Grid Interactive: Inverter operates from battery or array power source and produces AC output and also operates in parallel with the grid supply. Any excess solar power will be exported into the grid. Whenever sufficient solar power is not available to run the load, the required power is shared from the grid. The maximum power feed into the grid is depends on the system rating. Battery charging automatically occur from the grid to maintain the battery bank at its grid charging voltage. Working Modes: Grid Export Mode
- Solar Power Generation System 4kVA is complete package designed to extract maximum power from Solar Panels to save electricity bills
- This Combo contains: UTL Sigma Hbrid 448 4kVA 48V MPPT Solar PCU (comes with 5 Years Warranty by UTL); 400Watts x8 mono perc solar panels (comes with 25 Years Warranty by UTL) & 165Ah 12V x4 c10 Solar Batteries (comes with 5Years* Warranty by UTL)
- Inverter Technology Appliances like AC/Fridge can be easily run, Also Water Pump 2HP of Crompton or Kirloskar are successfully tested.
- We recommend user to choose 10mm or above Solar DC wire for connecting solar panels with this PCU.
- Please note: installation not included and user need to hire an expert engineer. All the warranties will be given by UTL as per their policies.
| System Rating
|Operating DC Voltage
|Maximum PV Power Recommended
|PV Input Voltage (VDC)
|Solar Charge Controller Technology
|Solar Charge Controller Rating
|Max Load Current
|Grid Charging Option
|MCB for Solar, Battery & AC
|Output Supply Phase
||1 Ph IN & OUT
|IT Load/UPS Mode
|Output Voltage Low
|Output Voltage High
|Noise @ 1Mtr
Contents: 1x Sigma Hybrid 448 Solar PCU, 8x 400Watts Mono Perc Solar Panels & 4x 165Ah 12V Batteries