SunGold Power 6.5KW 48V Split Phase Solar Inverter

The SunGold Power 6.5KW 48V Split Phase Solar Inverter Brings 6500W of 120/240V Power and a Separate Generator Input to Smaller 48V Systems

The SunGold Power 6.5KW 48V Split Phase Solar Inverter (model SPH6548P) is a compact all-in-one solar storage inverter. It combines a 6500W pure sine wave inverter, two MPPT solar inputs of 5000W each and a battery charger, and it has its own generator input alongside the grid input. SunGold lists it as UL 1741 by ETL for off grid solar systems.

It is sized for cabins, smaller off-grid homes and backup systems that still need 240V circuits. At 41.7 lb, it is lighter than SunGold's larger SPH split phase models, and up to six can be paralleled for 39KW if your needs grow.

SunGold Power 6.5KW 48V Split Phase Solar Inverter Features

6500W Output With a 13000VA Peak

The inverter delivers 6500W of rated output and a 13000VA peak in 120/240V split phase or 120V single phase. Phase voltage can be set to 100, 105, 110, 120 or 127Vac to suit your equipment.

Two 5000W MPPT Inputs Rated to 550V

Each of the two MPPT inputs accepts up to 5000W, 550Vdc open circuit and 18A, with a 150-450Vdc operating range. Tracking efficiency is rated at 99.9%. The higher voltage limit gives more room for long series strings.

Separate Grid and Generator Inputs

The unit has dedicated AC input and generator input terminals, each wired L1, L2 and N. You can keep a generator connected as a backup source without swapping it in and out of the grid input. The bypass overload current is 40A.

Up to 140A of Combined Charging

Grid or generator charging reaches 80A, and mixed charging from solar and AC reaches 140A. Four charging modes are available: hybrid, utility priority, solar priority and solar only.

Time-Slot Control and Energy-Saving Mode

Four output modes (utility priority, solar and utility hybrid, solar priority and inverter priority) set where loads draw power. A time-slot function lets you schedule charging and discharging around peak and valley tariffs, and an energy-saving mode reduces no-load losses.

Broad Battery Support

The inverter works with 48V AGM or sealed, gel, flooded and lithium batteries, plus a user mode. Grid or PV power can activate a dormant lithium battery, and CAN and RS485 communication is supported with SunGold batteries.

Parallel Up to Six Units

Six units can be paralleled for 39KW of output as 120V single phase, 120/240V split phase or 208V three-phase. A parallel communication cable is packed with each inverter.

Real-World Applications

Cabins and smaller off-grid homes. Run 120V and 240V circuits from solar and a 48V bank.

Generator-backed systems. Wire a generator to its own input for charging and backup when solar falls short.

Home backup. Keep critical loads and 240V circuits running during outages, with a 10ms typical switch time.

Modest arrays on two roof faces. Two independent MPPT inputs handle strings with different orientations.

How It Compares to Common Alternatives

Versus the 8KW and 10KW SPH models. SunGold's larger split phase models raise output and charging current for heavier loads. The 6.5KW is the lighter unit at 41.7 lb, and it adds a separate generator input and PV inputs rated to 550Vdc.

Versus a generator alone. A generator has to run whenever you need power. With this inverter, solar and a battery bank carry the loads, and the generator input is there to recharge when solar is short.

Versus separate inverter and charge controllers. One cabinet replaces an inverter, an AC charger and two solar controllers, with one display and one settings menu.

Is This Split Phase Solar Inverter the Right Fit

• Battery bank. Requires a 48V bank within 40-60Vdc. SunGold's manual calls for 35mm² (2 AWG) battery cable and a 2P-160A breaker.
• Solar array. Two independent arrays, each up to 5000W, 550Vdc open circuit and 18A.
• AC wiring. The manual lists 40A per line in split phase mode, with 8 AWG conductors and 3P-40A breakers for grid, generator and output.
• Location. IP20 rated for indoor use only, from 14 to 131°F with derating above 113°F.
• Size and weight. 23.0 x 16.1 x 5.23 inches and 41.7 lb.

This may be a good fit if

• You need up to 6500W of 120/240V power
• You use a generator as a backup source
• Your array splits into two strings
• You want room to add parallel units

Common Questions

Does It Have a Separate Generator Input?

Yes. It has a generator input (L1, L2 and N) in addition to the grid input, with its own recommended wiring and breaker.

How Much Solar Can I Connect?

Up to 5000W on each of the two MPPT inputs. Each input accepts up to 550Vdc open circuit and 18A. In a parallel system, every inverter needs its own independent arrays.

Can It Run Without the Grid?

Yes. When the battery and solar supply the loads, the system can operate without grid or generator power. The battery covers loads when solar is low and no AC source is present.

How Many Units Can Be Paralleled?

Up to six, for 39KW of output in single phase, split phase or 208V three-phase configurations. All paralleled units connect to the same battery bank.

What's Included

• 1 x SunGold Power 6.5KW 48V Split Phase Solar Inverter (SPH6548P)
• 1 x Parallel Communication Cable

Split Phase Power Sized for Smaller Systems

The SunGold Power 6.5KW 48V Split Phase Solar Inverter gives a 48V system 6500W of 120/240V output, two 5000W MPPT inputs and a dedicated generator input in one wall-mounted unit. At Outbound Power, we help customers size inverters, battery banks and arrays for cabins, homes and backup systems. If you have questions, our team is happy to help.

SunGold Power SPH6548P Manual

SunGold Power SPH6548P UL 1741 Certificate