Sol-Ark 12K 120/240/208V 48V All-In-One Stackable Hybrid Inverter

Stackable, no glitch, all-in-one hybrid inverter. Limitless… parallel stacking, grid sell, meter zero, time of use, smart load, AC coupling, peak shaving, 20kW peak power. Highly accelerated life testing… proven to last well beyond the standard 10-year warranty. Engineered, tested, serviced in USA. No glitch switch (4ms)… fastest transfer time in the industry. Free remote monitoring/programming.

Sol-Ark 12K Pre-Wired Hybrid Inverter System is a all-in-one system that includes an inverter, charger controller, a display with remote monitoring. The Sol-Ark is simple to install to a Grid-tied, Off-Grid, or Battery Backup solar system, while being able to manages power to and from Solar, Battery, Grid, Loads, and Generator.


Sol-Ark 12K 120/240/208V 48V All-in-One Stackable Hybrid Inverter Features:

  • Two built-in 500V charge controllers
  • 1-6 PV strings
  • Battery disconnect
  • 48V battery input
  • Battery temp sensor
  • Auto-generator start
  • Rapid shut down signal
  • Current sensors included
  • Battery communication
  • PV disconnect
  • Wiring knockouts & WiFis
  • 50A Breakers: AC in/out, AC load out, AC Gen in/smart load out
  • Simple to install with touchscreen interface
  • Grid Tied Mode: Sell your power to reduce electric bill
  • Meter Zero Mode: Zero your electric bill without a smart meter
  • Time of Use: Use solar and batteries to minimize grid power usage
  • Programmable Smart Load Mode
  • DC and AC Coupling
  • Works with a wide range of battery chemistries- Lead acid to Lithium

Solar Characteristics:

  • Max allowed PV Power: 8,250W+8,250W= 16,500W
  • Max PV power delivered to battery & AC outputs: 12,000W
  • Max DC voltage: 500V @ 18A, 450V @ 20A
  • MPPT voltage range: 150-425V
  • Starting voltage: 175V
  • Number of MPPT: 2
  • Solar Strings per MPPT: 2 w/o fuses, 3 w/ fuses
  • Max DC current per MPPT (self limiting): 20A @ 300V, 18A @ 400V
  • Max AC Coupled Input (Micro/String Inverters): 7,600W

AC Output Characteristics:

  • Connections: 120/240/208V split phase
  • Continuous AC power to Grid (On Grid): 9,000W 40A L-L (240V), 4,800W 40A L-N (120V)
  • Continuous AC power to Grid (Off Grid): 8,000W 40A L-L (240V), 4,800W 40A L-N (120V)
  • Surge AC power 5sec: 20,000VA L-L (240V), 10,000VA L-N (120V)
  • Parallel stacking: 2-3 (240V), 3 or 6 (208V)
  • Frequency: 60/50Hz
  • Continuous AC power with Grid or Generator: 12,000W 50A L-L (240V), 6,000W 50A L-N (120V)
  • CEC Efficiency: 96.5% (Peak 97.5%)
  • Idle Consumption typical – no load: 60W
  • Sell back power modes: Limited to Household or Full Grid-Tied
  • Design (DC to AC): Transformerless DC
  • Response Time (Grid-Tied to Off-Grid): 4ms
  • Power Factor: +-0.9 – 1.0

Battery (optional) Characteristics:

  • Type: Lead-Acid or Li-Ion
  • Nominal DC Input: 48V
  • Capacity: 90 – 2000Ah
  • Voltage Range: 43.0 – 61.0V
  • Continuous Battery charging output: 190A
  • Charging curve: 3-stage w/ equalization
  • Grid to Battery Charging Efficiency: 96.0%
  • External temperature sensor: included
  • Current shunt for accurate % SOC: integrated
  • External Generator Start based on voltage or % SOC: integrated
  • Communication to Lithium battery: CanBus & RS485

General Characteristics:

  • NEMA-3R rated
  • Ambient Temperature (4 variable speed fans): -25 to 55C, >45C derating
  • Display: Color touch screen
  • Wi-Fi Communication (monitoring or SW updates): included
  • Snap on sensors for limited selling to Household: included
  • Standard Warranty (verified by HALT testing): 10 years

Protection & Certifications:

  • Electronics certified safety by SGS labs to NEC & UL specs – NEC 690.4B & NEC 705.4/6
  • Grid Sell Back – UL1741-2010/2018, IEEE1547a-2003/2014, FCC 15 class B, (April 2019: UL1741SA, CA Rule 21, HECO Rule 14H)
  • PV DC disconnect switch – NEC 240.15: integrated
  • Ground Fault Detection – NEC 690.5: integrated
  • PV rapid shutdown control – NEC 690.12: integrated
  • PV Arc Fault detection – NEC 690.11/ UL1699B: integrated
  • PV input lightning protection: integrated
  • AC input/output 50A breakers: integrated
  • Battery overcurrent fuse: integrated
  • User wiring enclosure w/ ¾” & 1” knock-outs: integrated
  • Solar Flare/EMP Hardened to 2015 MIL-STD461G (Independently tested June 2018): optional

Additional information

Weight 77 lbs
Dimensions 28.0 × 17.375 × 9.37 in




Rated Power Output [W]


Warranty [Years]


Inverter Type

Hybrid inverter

Maximum/Peak Efficiency [%]


CEC weighted efficiency @ 240V [%]


Transformer / Transformerless

Transformerless DC

Max. Input Power [W]


Max. Input Power [V]


Max. Input Power [A]


Number of DC String Inputs (Inlets)


Number of MPP Trackers


Max. Input Current per MPPT [A]


Voltage Lower Limit for MPP Range [V]


Max. output current [A]