X3-FTH-120K-5anni
SolaX +5 Year Warranty Extension for the X3-FTH-120K three-phase string inverter (X3 FORTH series). Extends total coverage to 10 years from commissioning. Covers manufacturing defects and failures with authorized SolaX technical support. Ideal for 120 kW C&I systems.
The SolaX X3-FTH-120K-5years warranty extension adds 5 years to the standard coverage of the 120 kW three-phase string inverter, bringing the total warranty to 10 years from commissioning. The X3-FTH-120K inverter (X3 FORTH series) is designed for commercial and industrial photovoltaic systems, with maximum efficiency up to 99%, 12 MPPT, and IP66 protection.
Why choose the +5 years extension for the X3-FTH-120K inverter?
A 120 kW inverter is the most valuable component in a C&I system over 150 kWp. The extension to 10 years covers the entire typical amortization cycle of these systems, eliminating the risk of having to bear out-of-warranty replacement costs when the system is still far from economic break-even.
Service Specifications
| Covered product | SolaX X3-FTH-120K (X3 FORTH series) |
| Nominal AC power | 120 kW |
| Standard SolaX warranty | 5 years |
| Purchased extension | +5 years |
| Total coverage duration | 10 years from commissioning |
| Coverage | Manufacturing defects, faults not attributable to the installer, original SolaX spare parts |
| Support | Authorized SolaX Italy service network |
When is the +5 years package better than the +10 years?
The +5 years package (total warranty 10 years) is the ideal choice when the system's amortization plan is about 10 years and you want coverage aligned without oversizing the extension cost. The +10 years package (X3-FTH-120K-10years, total warranty 15 years) is instead recommended for systems with an operational horizon beyond 10 years or for tenders with stricter warranty requirements.
How do you activate the SolaX warranty extension?
- Purchase the service on MR WATT together with or after the X3-FTH-120K inverter
- Register the inverter on the SolaX portal (SolaXCloud) with serial number and installation data
- Receive the personalized warranty extension documentation with the associated serial number
- Support can be activated through the SolaX Italy service network for the entire coverage period
Frequently Asked Questions
What is the total warranty duration with the +5 years package for X3-FTH-120K?
The standard SolaX X3-FTH-120K warranty is 5 years from commissioning. By adding this +5 years package, the total coverage reaches 10 years. If the inverter is registered and connected to SolaXCloud, SolaX grants an additional free year on spare parts.
Does the warranty extension also cover lightning or overvoltage damage?
No. The extended SolaX warranty exclusively covers manufacturing defects and internal faults not attributable to external causes. Damage from lightning, grid overvoltages, exceptional weather events, and non-compliant installation are excluded and require a dedicated All Risk insurance policy for photovoltaic systems.
Can I purchase the warranty extension after the inverter has been installed?
Yes, within the terms set by SolaX (generally within 36 months from commissioning). You must keep the original purchase documentation and the serial number for registration on the SolaX portal. For checks on specific deadlines, contact MR WATT support.
Is the +5 years package or the +10 years package better for the X3-FTH-120K?
The +5 years package (total warranty 10 years) is the optimal choice for systems with an amortization plan of about 10 years and for those who want to keep the extension cost down. The +10 years package (total warranty 15 years) is preferable for systems with a longer operational horizon, for PPA contracts, or for public tenders with warranty requirements ≥ 12 years.
What happens if the X3-FTH-120K inverter is replaced under warranty?
If the inverter is replaced under warranty, the remaining coverage transfers to the replacement unit provided by SolaX for the remaining contract duration. You must register the new serial number on the SolaX portal and keep all documentation of the technical intervention to maintain the validity of the warranty.
