X3 FORTH 110K
The Solax X3 Forth 110K is a three-phase photovoltaic inverter with 110 kW output for high-power commercial and industrial systems. Equipped with 9 independent MPPTs, maximum DC voltage of 1100 V, IP66 protection, zero feed-in function, and 24/7 cloud monitoring for maximum system control.
The Solax X3 Forth 110K is a three-phase string inverter with 110 kW output designed for commercial and industrial photovoltaic systems that require high power, high reliability, and advanced generator field management. It is part of the X3 Forth series, Solax’s range dedicated to professional installations over 100 kW, appreciated by installers for its ease of configuration and mechanical robustness guaranteed by IP66 protection.
Why choose the Solax X3 Forth 110K for your commercial system?
With 9 independent MPPTs and 2 string inputs per tracker, the X3 Forth 110K allows you to manage up to 18 strings completely independently, eliminating mismatch losses between strings with different exposures or lengths. The maximum input voltage of 1100 V DC allows for long strings with fewer parallels, reducing resistive losses. The oversizing of the PV input up to 150%—meaning you can install up to 165 kWp on a 110 kW inverter—is the most effective strategy to maximize production during hours of low irradiance without increasing the inverter cost.
Solax X3 Forth 110K Technical Specifications
| Nominal AC Power | 110 kW |
| Number of MPPTs | 9 |
| Strings per MPPT | 2 |
| Maximum DC Voltage | 1100 V |
| MPPT Voltage Range | 180–1000 V DC |
| Max Short-Circuit Current per MPPT | 46 A |
| PV Input Oversizing | 150% |
| Maximum Efficiency | 99.9% |
| Protection Rating | IP66 |
| SPD Protection | Type II (DC and AC) |
| AFCI Protection | Optional |
| Cooling | Long-life intelligent ventilation |
| Fuse Design | Fuse-free, intelligent string current monitoring |
| Dimensions | 985 × 660 × 327.5 mm |
| Weight | 83 kg |
| Warranty | 5 years (6 years with active cloud) |
Smart monitoring and remote maintenance
The X3 Forth 110K includes 24/7 cloud monitoring via the Solax platform, with access through app and web portal. Operational settings and firmware updates are managed remotely, eliminating the need for physical intervention on the inverter for routine operations. The I-V curve diagnosis allows detection of degraded panels or abnormal strings directly from the dashboard.
Export control and CEI 0-16 / CEI 0-21 compliance
The integrated power export control (zero feed-in) function can be natively activated on the X3 Forth 110K, in compliance with requirements imposed by grid operators for commercial systems over 100 kW. Nighttime reactive power compensation complies with the technical specifications of CEI 0-16 for medium voltage connections and CEI 0-21 for low voltage.
What is included in the supply?
- Solax X3 Forth 110K inverter
- Integrated Type II SPD protection on DC and AC
- Optional AC connector for aluminum cable
- Complete technical documentation
Frequently Asked Questions
What is the difference between the Solax X3 Forth 100K and X3 Forth 110K?
The main difference is the nominal output power: 100 kW for the 100K model and 110 kW for the 110K. Both share the same mechanical structure (identical dimensions and weight at 83 kg), the same number of MPPTs (9), and the same technological features. The choice depends on the system size and the connection limits imposed by the local distributor.
Does the Solax X3 Forth 110K support the zero feed-in function?
Yes, the export control (zero feed-in) function is natively integrated. The inverter interfaces with an external measurement meter to modulate the power fed into the grid in real time. This function is required by many Italian distributors for commercial systems connected to the public grid.
How many photovoltaic strings can be connected to the X3 Forth 110K?
The X3 Forth 110K has 9 MPPTs with 2 string inputs each, for a total of 18 independent string connections. Each pair of strings on the same MPPT is optimized separately from the other trackers, ensuring high yield even in heterogeneous fields with different orientations or shading.
Can the X3 Forth 110K operate in parallel with other inverters?
Yes, the X3 Forth series inverters are designed to operate in multi-inverter configurations for large-scale systems. The Solax cloud platform allows centralized monitoring and management of multiple units installed on the same system, with aggregated control of the power exported to the grid.
What is meant by intelligent I-V curve diagnosis?
I-V diagnosis is a function that analyzes the current-voltage characteristic curve of each photovoltaic string connected to the inverter. By comparing the measured curve with the expected one under the same irradiation, the system automatically identifies anomalies such as degraded panels, persistent shading, or string faults, without requiring external equipment or on-site technical intervention.
