Sungold Power 18kW 48V Commercial Three-Phase All-in-One Solar Charge Inverter
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Request a Free Solar ProposalThe Sungold Power 18kW 48V Commercial Three-Phase All-in-One Solar Charge Inverter is a commercial all-in-one solar inverter charger designed for 48V battery systems and three-phase output. It delivers 18,000W rated output power, supports dual MPPT PV input, and provides a 120/208VAC three-phase output for compatible commercial and backup power applications. The unit also includes built-in AC and DC circuit breakers, LCD display, WiFi remote monitoring support, and multiple working modes for solar, grid, and battery operation.

18kW Three-Phase Output - Provides 18,000W rated output power for compatible three-phase load applications.
48V Battery System - Designed for 48VDC battery systems with a battery voltage range of 40-60VDC.
Dual MPPT Solar Input - Built with 2 MPPT trackers and supports 14.4kW + 14.4kW max PV array power.
600VDC Max PV Input - Supports high-voltage PV input with a 600VDC maximum PV input voltage and 120-550VDC MPPT operating voltage range.
Built-In Circuit Breakers - Integrated GEN, LOAD, GRID, and BATTERY breakers help simplify installation and provide multiple layers of circuit protection.
LCD Display and WiFi Remote Monitoring - Includes a large LCD display and supports WiFi remote monitoring for system status and performance tracking.
Wide Battery Compatibility - Compatible with Li-ion battery, lead-acid battery, and user-defined battery settings.
Multiple Working Modes - Supports UTL Priority Output, SBU Priority Output, SOL Priority Output, and SUB Default Priority Output, along with hybrid charging and solar-only charging modes.
Parallel Capacity - Supports parallel operation from 1 to 6 units.
Commercial Application Support - Designed for use in compatible commercial applications such as farms, workshops, warehouses, pumps, and backup power setups.




Everything you need is included with your product.


Inverter Output
| Specification | Details |
| Rated Output Power | 18,000W |
| Max. Peak Power | 2 times rated power, 10s |
| Max. AC Output Power | 19,800VA |
| Rated AC Output Current | 50.0Aac |
| Rated Output Frequency | 50/60Hz |
| Rated Output Voltage | 120/208Vac (L1+L2+L3+N+PE) |
| Output Voltage Range | 120/208Vac ± 5% |
| Specification | Details |
| Battery Type | Li-ion Battery / Lead-Acid Battery / User Defined |
| Rated Battery Voltage | 48Vdc |
| Battery Voltage Range | 40–60Vdc |
| Max. PV Charging Current | 360Adc |
| Max. Grid/Generator Charging Current | 360Adc |
| Max. Charging/Discharging Current | 360Adc |
| Charging Curve | 3 Stages / Equalization |
| Charging Strategy for Li-Ion Battery | Self-adaption to BMS |
PV Input
| Specification | Details |
| No. of MPPT Trackers | 2 |
| Max. PV Array Power | 14.4kW + 14.4kW |
| Max. Input Current | 36Adc + 36Adc |
| Min. PV Input Voltage / Start-up Voltage | 100Vdc |
| Max. PV Input Voltage | 600Vdc |
| MPPT Operating Voltage Range | 120–550Vdc |
Grid / Generator Input
| Specification | Details |
| Frequency Range | 50/60Hz |
| Input Voltage Range | 120/208Vac (L1+L2+L3+N+PE) |
| AC Voltage Range | Phase Voltage 90–140Vac; Line Voltage 156–242Vac |
| Continuous Grid Passthrough Current | 100A |
Interface
| Specification | Details |
| Communication Port | RS485 / CAN / USB / Dry Contact |
| External Modules (Optional) | Wi-Fi / GPRS |
General Data
| Specification | Details |
| Parallel Capacity | 1–6 Units |
| Parallel Capacity | 23.36 × 33.40 × 8.47 inches |
| Weight | 118 lbs |
| Protection Degree | IP20, indoor use only |
| Operating Temperature Range | 14 ~ 131°F, >113°F Derated |
| Noise | <60dB |
| Cooling Method | Intelligent Air Cooling |
Communication
| Specification | Details |
| Internal Interface | RS485 / CAN / WiFi |
| External Module (Optional) | WiFi / 4G Stick |
Certified Specifications
| Specification | Details |
| Safety Standards | IEC62109-1, IEC62109-2 |
| EMC | EN61000-6-1, EN61000-6-3, FCC 15 Class B |
| RoHS | Yes |



What is the rated output power of this inverter?
The Sungold Power 18kW 48V Commercial Three-Phase All-in-One Solar Charge Inverter has a rated output power of 18,000W.
What battery voltage does this inverter support?
It is designed for 48VDC battery systems with a battery voltage range of 40-60VDC.
What battery types are compatible?
The inverter supports Li-ion batteries, lead-acid batteries, and user-defined battery settings.
How many MPPT trackers does it have?
It has 2 MPPT trackers.
What is the maximum PV array power?
The maximum PV array power is 14.4kW + 14.4kW.
What is the maximum PV input voltage?
The maximum PV input voltage is 600VDC.
Does this inverter support WiFi monitoring?
Yes. The inverter supports WiFi remote monitoring and includes a WiFi module in the packing list.
Does it have built-in breakers?
Yes. It includes built-in breakers for GEN, LOAD, GRID, and BATTERY.
Can multiple units be connected in parallel?
Yes. The inverter supports parallel capacity from 1 to 6 units.
Is this inverter for indoor or outdoor use?
The protection degree is IP20, and the specification states indoor use only.
Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.
Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.
Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.
Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.
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