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48V Solar Inverter Lineup: From 6kW Cabin Units to 60kW Commercial

A 48V solar inverter is the standard heart of a modern home battery system. Running the bank at 48V instead of 12V or 24V cuts current by a factor of four, so cables are thinner, losses are lower and one inverter can push 6,000 to 18,000W without exotic wiring. Every unit in this collection converts a 48V lithium bank plus solar into 120/240V split-phase power, and most charge the bank from the grid or a generator as well.

There are 39 inverters here from EG4, Sol-Ark, Sungold Power, Rich Solar and APEX. Prices start at from $1,450 for an 8,000W Sungold unit and reach $14,455 for the three-phase Sol-Ark 60K built for commercial buildings.

Sungold Power 8,000W 48V split phase solar inverter wall-mounted for whole-home off-grid backup

How to choose a 48V inverter

  • Output for the loads you run together. The EG4 6000XP at 6,000W handles a cabin or a critical-loads panel. The Sungold Power 8,000W Split Phase and the 10,000W version cover most homes without electric heat. For everything at once, the Sungold SGN-11K15PRO offers 11.4kW continuous with 200A whole-home backup, so there is no sub-panel to plan.
  • Solar input and string voltage. The Sungold 8kW accepts 11,000W of PV with a 500V open-circuit limit; the EG4 FlexBOSS18 takes 18,000W across two trackers. If your roof can hold more panels than the inverter accepts, buy up a size.
  • Grid interaction. Sol-Ark 12K, 15K and 18K, the EG4 12kPV and FlexBOSS models, and the UL 1741 listed Rich Solar NOVA 12K all operate grid-tied or off-grid. The APEX-6.5K is off-grid with dedicated grid and generator inputs.
  • Charge current. A big bank needs a big charger. The Sungold 8kW and the NOVA 12K both list 200A maximum charge, which refills a 15kWh bank in a few hours of strong sun or generator time.
  • Paralleling. The 6000XP stacks up to 16 units, the Sungold 8kW supports parallel split-phase or three-phase operation, and the Sol-Ark 60K parallels up to 10 units for large sites.

Popular picks in this collection

Product Key numbers Best for Price from
Sungold Power 8,000W Split Phase 8,000W, 11,000W PV, 200A charge, WiFi Budget whole-home off-grid $1,450
APEX-6.5K 6,500W, grid + generator inputs Homesteads with a backup generator $1,490
Rich Solar NOVA 12K 10,000W continuous, 12,000W PV, UL 1741 Grid-tied homes wanting permits $2,949
Sol-Ark 15K Pre-Wired 15kW rated AC, 120/240/208V Large homes, light commercial $5,650
Sol-Ark 18K 48V all-in-one pre-wired hybrid inverter with 36kW surge capacity

Sizing tips

  • Use the Solar Kit Calculator first. It turns your appliance list and ZIP code into an inverter wattage, a battery size and a panel count that agree with each other.
  • Confirm your battery's continuous discharge rating supports the inverter. A 10kW 48V hybrid inverter can pull over 200A from the bank at full load.
  • Match the output voltage to your panel. A 48V to 240V inverter with split-phase output is required for well pumps, dryers and central AC; a 120V-only unit will not start them.
  • For surge-heavy loads, look at the surge rating. The Sol-Ark 18K lists 36kW for 10 seconds, which starts HVAC compressors and high-torque motors without a soft starter.
  • Outdoor mounting calls for a rated enclosure. The EG4 12kPV and FlexBOSS models are NEMA 4X; the Sungold and APEX units belong on an indoor wall.
  • Keep 20 percent of headroom on continuous output. An inverter running at its limit all evening runs hot and ages faster.

Frequently asked questions

Why 48V rather than 24V for a home? At 48V a 6,000W load draws about 125A instead of 250A, so wiring, fuses and busbars are smaller and cheaper. Every home-scale inverter here is 48V for that reason.

Which solar inverter 48V model works with any lithium battery? All of them accept a 48V lithium bank. Closed-loop battery communication depends on the specific pairing, so ask us before mixing brands if you want the battery to report state of charge to the inverter.

Can I run three-phase equipment? The Sol-Ark 60K delivers native 277/480V three-phase with 78kW of PV input, and the Sungold 8kW supports three-phase in parallel groups. Residential units are split-phase only.

Every inverter ships free to the mainland US from our brand partner warehouses, usually within a few business days, with 30-day returns. Call us with your battery brand and panel layout and we will confirm compatibility before you order.

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