Solar LT Panels, ACDB and DCDB for Power Plants

Electrical panels for rooftop to MW-scale solar plants

Every solar plant needs a chain of LT switchgear between the modules and the grid: array junction boxes on the DC side, AC combiner boxes and ACDBs at the inverters, an 800 V or 415 V LT panel at the inverter transformer, and metering, NVR and synchronising panels at the point of connection. Accu-Panels Energy manufactures the complete range in IP65, C5-coated enclosures on a CPRI type-tested IEC 61439 platform at its Ahmedabad works, and has supplied solar EPCs and developers across India, Africa and the Middle East for over a decade.

Which solar panel do you need?

Position in the plantPanelKey ratings
PV strings → inverter (DC)Array junction box / DC distribution board1000 / 1500 V DC, gPV fuses, Type 2 SPD, IP65/66
Inverter cluster (AC)AC combiner box415 / 800 V AC, 2–16 inputs, up to 3200 A
Inverter → load / gridSolar ACDB / AC distribution board63 A – 6300 A, SPD, MFM, IP65
Inverter transformer LV side800 V LT panel800 V AC, up to 6300 A, 50–65 kA, C5 coating
Grid interface protectionNVR panelNo-volt, phase-failure and reverse-power relays, up to 800 A
MeteringTVM panel / meter panel boardCT/PT metering, ABT / net meter provision
Hybrid solar + DGSynchronising panelDG–solar–grid parallel operation, reverse-power control

Why solar EPCs specify Accu-Panels

  • 800 V AC expertise: one of the first Indian manufacturers to build 800 V LT panels for string-inverter architecture, including a 4.2 MWp plant case study.
  • CPRI type-tested design to IEC 61439 with documented short-circuit, temperature-rise, dielectric and IP tests.
  • Built for the field: IP65 enclosures, C5 anti-corrosion coating, canopies, breathers and UV-stable polyester options for open sites and coastal plants — read why C5 coating matters.
  • SCADA-ready: Modbus RTU / TCP metering, string monitoring and SPD status contacts as standard options.

Learn more in our guides: how ACDB and DCDB work in a solar plant, 800 V LT ACDB technical highlights and DG–solar synchronising. For a project quotation, send us your plant SLD.