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Hybrid Solar Inverter · 12,000W · 48V
A UL1741 SB listed 12kW hybrid inverter with 18kW of solar input, 200A whole-home pass-through, IP65 enclosure and both 120/240V split-phase and 120/208V three-phase output - on-grid, off-grid or hybrid.
The Sungold Power SGS-12K18MAX brings solar, battery storage and the grid together in one 12kW all-in-one hybrid inverter. Its 200A continuous pass-through means it can sit between the meter and a 200A main panel and back up the entire house - not just a critical-loads sub-panel - and switch to battery in 10ms when the grid drops.
Two MPPT trackers accept 9,000W each (18kW total) with a 550Vdc maximum and 125-450Vdc operating range. The inverter is UL1741 SB, IEEE 1547-2018 and California Rule 21 certified, so it can export excess solar to the grid where net metering is available, and it also supports AC coupling with an existing grid-tied PV inverter. Paired with the PowerMax 51.2V 314Ah outdoor battery it forms a UL 9540 certified energy storage system, which simplifies permitting.
Choose 120/240V split-phase or 120/208V three-phase output, parallel up to six units for 72kW, and manage everything - hybrid grid modes, PV and battery energy management, peak shaving and time-of-use - from the LCD or the mobile app. The IP65 enclosure allows indoor or outdoor mounting.
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Continuous 200A grid pass-through powers the entire main panel during outages instead of a limited critical-loads panel.
Two MPPTs at 9,000W / 32A each, 550Vdc maximum and 99.9% tracking efficiency for large residential arrays.
UL1741 SB, IEEE 1547-2018, Rule 21 and HECO listed for grid export; AC coupling supports existing grid-tied PV inverters.
Inverter and PowerMax 314 outdoor battery are certified together as one ESS, easing inspection and permit approval.
Outputs 120/240V split-phase or 120/208V three-phase, and parallels up to six units for 72kW.
Weather-resistant enclosure for indoor or outdoor mounting, built-in rapid shutdown, AFCI protection and a 10-year manufacturer warranty.
Yes. It is UL1741 SB / IEEE 1547-2018 certified and supports grid export, zero-export and self-consumption modes, subject to your utility interconnection agreement.
Yes. The 200A continuous pass-through rating lets it be installed on a 200A main service and carry the entire panel, with up to 12kW from the battery during an outage.
The PowerMax 16.07kWh 51.2V 314Ah outdoor battery is the certified UL 9540 match. CoreX 5 Pro / Elite and other 48V CAN/RS485 lithium batteries also work.
Yes. The IP65 enclosure is rated for indoor or outdoor mounting, with an operating range of -13°F to 140°F.
SGS-12K18MAX 12kW Hybrid Solar Inverter
| Inverter Output | |
| Rated output power | 12,000W @ 240V / 10,400W @ 208V |
| Peak power | 1.5 x rated (10s) |
| Rated output voltage | 120/240Vac split-phase or 120/208Vac three-phase |
| Output current | 50A |
| Load motor capacity | 6HP |
| Frequency | 50/60Hz |
| Waveform | Pure sine wave |
| Parallel capacity | Up to 6 units (72kW) |
| Battery | |
| Battery type | Lithium-ion / lead-acid / user-defined |
| Rated battery voltage | 48Vdc |
| Voltage range | 40-60Vdc |
| Max grid charging current | 200A |
| Max generator charging current | 200A |
| Max hybrid charging current | 240A |
| PV Input | |
| MPPT trackers | 2 |
| Max PV array power | 9,000W + 9,000W (18kW) |
| Max input current | 32A / 32A |
| Short-circuit current | 40A / 40A |
| Max open-circuit voltage | 550Vdc |
| MPPT voltage range | 125-450Vdc |
| MPPT tracking efficiency | 99.9% |
| Grid / Generator Input | |
| Input voltage range | 90-140Vac |
| Frequency range | 50/60Hz |
| Continuous grid pass-through | 200A |
| General | |
| Dimensions | 33.07 x 17.32 x 10.24 in (840 x 440 x 260 mm) |
| Weight | 105.82 lb (48 kg) |
| Protection | IP65, indoor or outdoor |
| Operating temperature | -13°F to 140°F (derated above 113°F) |
| Noise | <60dB |
| Self-consumption | <100W |
| Cooling | Heat sink + intelligent fan |
| Communication | RS485 / CAN / USB / dry contact; Wi-Fi / GPRS optional |
| Protection functions | Reverse polarity, DC switch per MPPT, output over-voltage varistor, over-current, ground fault monitoring, grid monitoring, pole sensitive leakage current unit, AFCI, RSD |
| Certifications | UL1741 SB, DC Arc-Fault Circuit Protection, UL1699B:2018, CSA C22.2#107.1, California Rule 21, IEEE1547:2018, IEEE1547.1:2020, Hawaiian HECO SRD-IEEE-1547.1:2020 Ed.2.0, FCC 15 Class B |
| Warranty | 10 years |
Free shipping on all orders within the mainland US (Hawaii, Alaska and overseas territories excluded - a freight forwarder is required). Orders ship directly from our brand partners' warehouses across the U.S. Order confirmation is emailed immediately; if an item is unexpectedly backordered we notify you before your card is charged. In-stock items are processed within 1-4 business days (cut-off 4:00 PM EST), transit is 3-6 business days, and tracking is emailed within 24 hours of shipment. Typical delivery is 4-10 business days from purchase. Minimum order value is $69.
You have 30 days from the delivery date to initiate a return (35 days for orders placed Nov 25-30 and Dec 25-31). Items must be unused, in original packaging with tags attached, and returns require prior authorization from our team.
To start a return: +1 (307) 317-7213, hello@ecosolarkits.com, or live chat. Read the full return and refund policy
