Sol-Ark Limitless 12K Hybrid Inverter
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Visit CalculatorThe Sol-Ark Limitless 12K Hybrid Inverter (12K-2P-LL) is a next-generation residential energy management solution engineered to deliver powerful whole-home backup, advanced solar integration, and seamless grid interaction in one compact platform. Designed specifically for North American homes, this hybrid inverter provides 12kW continuous AC output, supports up to 19.2kW of solar PV input, and offers exceptional installation flexibility for both new solar projects and retrofit applications.
Featuring a compact footprint, three independent MPPTs, 100A passthrough capability, integrated generator support, and compatibility with both lithium-ion and lead-acid battery systems, the Limitless 12K is built to maximize energy production while minimizing installation complexity. Whether used for whole-home backup, grid-tied solar optimization, or off-grid energy independence, the Sol-Ark Limitless 12K delivers reliable, scalable performance with industry-leading efficiency.

MICROMAX™ Compact Design - Delivers 12kW-class AC output in one of the most compact hybrid inverter enclosures available, reducing wall space requirements and simplifying installation.
MAXPV™ 19.2kW Solar Capacity - Supports up to 19,200W of PV input with three independent MPPTs, allowing larger solar arrays and improved production across multiple roof orientations.
FLEXPASS™ 100A Passthrough - Provides 100A continuous AC passthrough capability, enabling connection to larger backup load panels without requiring external contactors.
GENLINK™ Generator Integration - Supports up to 14kW of external AC power through the GEN port, allowing seamless integration with generators, microinverters, and AC-coupled energy sources without a transfer switch.
12kW Continuous Output - Provides dependable whole-home backup power capable of supporting HVAC systems, well pumps, refrigerators, kitchen appliances, lighting, and more.
24kW Surge Capability - Handles large startup loads and motor-driven equipment with up to 24,000W surge power for 10 seconds in off-grid operation.
Three Independent MPPTs - Features a 3-MPPT architecture with two strings per MPPT, maximizing solar harvest across multiple roof sections and array orientations.
Flexible Battery Compatibility - Supports both lithium-ion and lead-acid battery technologies with a 48V battery architecture and advanced BMS communication.
Rapid Backup Transfer - Provides seamless power transitions with a fast 5ms transfer time during grid outages.
Scalable Parallel Design - Supports up to 12 inverters operating in parallel for larger residential or commercial energy storage systems.
Advanced Monitoring & Connectivity - Integrated support for WiFi and LAN monitoring, with optional 4G communication capabilities.
Intelligent Cooling System - Utilizes intelligent air cooling technology to optimize thermal performance and inverter longevity.


Everything you need is included with your product.
Input Data (PV)
| Specification | Details |
| Max. Allowed / Usable PV Input Power | 19,200 W |
| Rated MPPT Voltage Range | 150 – 425 V |
| Start-up Voltage (V) / Max. PV Input Voltage | 125 / 500 V |
| Max. Operating PV Input Current per MPPT | 32 A |
| Max. Input Short Circuit Current per MPPT | 60 A |
| MPPT Architecture | 3 MPPTs, 2 Strings per MPPT |
| Max. AC Coupled Input | 14,000 W |
Output Data (AC)
| Specification | Details |
| Nominal AC Voltage L-L | 120/240 V; 208 V |
| Nominal AC Frequency | 50 / 60 Hz |
| Max. Continuous AC Output Power | 12,000 W |
| Peak Surge AC Output Power (10s, off-grid) | 24,000 W |
| Max. AC Output Current (Batteries + PV) | 50 A |
| Max. Continuous AC Output Power (Batteries Only) | 10,000 W (41 A @ 240 V) |
| Max. Continuous AC Passthrough (grid to load) | 100 A |
| Max. Efficiency | 97.6 % |
| Power Factor Adjustment Range | +/- 0.8 adjustable |
| Backup Transfer Time | 5 ms |
| Design (DC to AC) | Transformerless DC |
| Stackable | Yes; Up to 12 units in parallel |
Battery Input Data (DC)
| Specification | Details |
| Battery Technologies | Lead-acid or Lithium-ion |
| Nominal DC Voltage | 48 V |
| Operating Voltage Range | 43 – 59 V |
| Battery Capacity Range | 50 – 9900 Ah |
| Max. Battery Charge / Discharge Current | 220 A |
| Charge Controller Type | 3-Stage with Equalization |
| Grid to Battery Charging Efficiency | 96.0 % |
| Automatic Generator Start (AGS) | 2-Wire Start - Integrated |
| BMS Communication | CANBus & RS485 MODBUS |
Mechanical Data
| Specification | Details |
| Dimensions (H x W x D) | 654 × 452 × 254 mm (25.7 x 17.8 x 10.00 in) |
| Weight | 29.5 kg / 65 lb |
| Enclosure Rating | IP65 / NEMA 3R |
| Ambient Temperature3 | -40 – 60°C, >45°C Derating |
| Idle Consumption - No Load | 96 W |
| Communication and Monitoring | WIFI / LAN / 4G (optional) |
| Type of Cooling | Intelligent Air Cooling |
| Standard Warranty | 10 Years |
What size solar array can the Limitless 12K support?
The inverter supports up to 19.2kW of solar PV input across three independent MPPT trackers.
How many MPPTs does the inverter include?
The Limitless 12K features three MPPTs with support for two strings per MPPT.
Can the inverter support whole-home backup?
Yes. The inverter delivers 12,000W continuous output with 24,000W surge capability and 100A passthrough, making it suitable for many whole-home backup applications.
What battery types are compatible?
The inverter supports both lithium-ion and lead-acid battery systems operating on a 48V battery platform.
Does it support generator integration?
Yes. The integrated GEN port supports up to 14kW of external AC power from generators and other AC-coupled energy sources.
How quickly does the inverter switch during an outage?
The Limitless 12K provides a rapid 5ms transfer time for seamless backup power operation.
Can multiple inverters be connected together?
Yes. The system supports up to 12 inverters operating in parallel for larger energy storage and backup systems.
Is the inverter rated for outdoor installation?
Yes. The inverter features an IP65 / NEMA 3R enclosure suitable for indoor and outdoor installations.
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