Sungold Power 18kW 48V Commercial Three-Phase All-in-One Solar Charge Inverter
Estimated Delivery Between
and .
Order within to get it by the earliest date.
Free Shipping In The USA | Call Us: 877-556-3347
Free Shipping In The USA | Call Us: 877-556-3347
Share it with us now and we will beat it. Get the best deal online, guaranteed!
and .
Order within to get it by the earliest date.
The 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 FAST & FREE across the US. Read our full Shipping Policy here.
We offer market leading Easy 30 Day Returns. Read more about our Returns Policy here.
We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Off-Grid Source.
Trusted By 10,000+ Customers. See All Reviews.
I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!
Bruce D.
I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.
Jennene A.
I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.
Ray B.
I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!
Roger V.
I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.
Jeff S.
We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!
Jason
Very fast response times. Very professional. I highly recommend!
Ray W.
Sign up for emails and get exclusive offers, new product drops, and expert advice to help you build the right solar setup with confidence.