Sol-Ark 18kW Inverter SA-18K-2P 48VDC 120/240V | Outdoor Grid-tied and Off-grid
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Description
The Sol-Ark 18K 2P-N is the most powerful residential hybrid inverter available, engineered for demanding off-grid and backup applications requiring uncompromising continuous power and massive surge capacity.
Key Features
- 18,000W Continuous Output with 36kW Surge: Delivers industry-leading sustained power with enough 10-second surge capacity to start HVAC systems and heavy motor loads without hesitation.
- MAXPV — Over 40kW Solar Support: Supports up to 28,800W of direct PV input plus 19,200W via AC coupling, allowing larger arrays than any other residential inverter in its class.
- 3 Independent MPPT Trackers: Three dedicated charge controllers with a 150–425V operating range maximize harvest across complex or shaded array configurations.
- DATALOCK American-Engineered Firmware: All data transmission is processed domestically, keeping your system data stateside with no foreign server dependency.
- Stackable Up to 12 Units: Units can be paralleled for scalable three-phase or high-capacity systems, supporting up to 216kW of combined continuous output.
Housed in an IP65/NEMA 3R rated enclosure, the Sol-Ark 18K 2P-N is built for outdoor installation and operates reliably across ambient temperatures from -40°C to +60°C. Wi-Fi and LAN hardware are included standard, with CANBus and RS485 MODBUS communication ensuring seamless BMS integration with leading battery systems.
Backed by a 10-year warranty and certified to UL1741 3rd SB, UL1741 CRD-PCS, IEEE1547-2018, UL1699B PVDC AFCI, and CSA C22.2 No. 107, the Sol-Ark 18K 2P-N is a code-compliant, utility-grade solution for installers and integrators building serious energy independence systems.
Technical Specifications
| Specification | Value |
|---|---|
| Input Data (PV) | |
| Max. Usable PV Power | 28,800W |
| Max. AC Coupled Input | 19,200W |
| Rated MPPT Operating Voltage Range | 150 – 425V |
| Startup Voltage | 125V |
| Max. DC Input Voltage | 500V |
| Max. Operating Input Current per MPPT | 36A |
| Max. Short Circuit Current per MPPT | 54A |
| No. of MPP Trackers | 3 |
| No. of PV Strings per MPPT | 2 |
| Output Data (AC) | |
| Continuous Power | 18,000W |
| Surge Power (10s) | 36,000W |
| Nominal AC Voltage | 120/240V; 208V |
| Grid Frequency | 60 Hz / 55–65 Hz |
| Output Current (Continuous) | 75A |
| Max. Grid Passthrough Current | 200A |
| Max Efficiency | 97.6% |
| Stackable | Yes, Max 12 Units |
| Battery Input Data (DC) | |
| Nominal DC Voltage | 48V |
| Operating Voltage Range | 40 – 60V |
| Capacity | 50 – 9900Ah |
| Continuous Battery Current | 350A |
| Battery Disconnecting Means | 200A/pole x 2 |
| Charging Controller | 3-Stage with Equalization |
| Automatic Generator Start (AGS) | 2-Wire Start, Integrated |
| BMS Communication | CANBus & RS485 MODBUS |
| General Data | |
| Dimensions (H x W x D) | 863 x 464 x 282 mm |
| Weight | 137 lbs |
| Enclosure | IP65 / NEMA 3R |
| Ambient Temperature | -40°C to +60°C (Derating above 45°C) |
| Operating Altitude | 3000 m (9,843 ft) |
| Noise | < 50 dB |
| Communication & Monitoring | Wi-Fi & LAN Hardware Included |
| Standard Warranty | 10 Years |
| Certifications | |
| Listings | UL1741 3rd SB, UL1741 CRD-PCS, IEEE1547-2018, IEEE2030.5, UL1699B PVDC AFCI, UL1998, CSA C22.2 No. 107 |
Return policy
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.