SOFAR 3.3K~12KTLX-G3 Three-Phase Dual MPPT Inverter
SOFAR 3.3K~12KTLX-G3 Three-Phase Dual MPPT Inverter
The SOFAR 3.3K~12KTLX-G3 series offers efficient three-phase dual MPPT inverters with up to 98.6% efficiency. Featuring natural cooling, remote monitoring, and robust safety protection, they are ideal for residential and small commercial rooftop solar systems.
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The SOFAR 3.3K~12KTLX-G3 series is designed for modern solar rooftops that demand high efficiency, safety, and low maintenance. With dual MPPTs, wide voltage adaptability, and a maximum efficiency of 98.6%, it ensures reliable energy harvesting under varying conditions.
Engineered with natural cooling technology, this inverter operates quietly and efficiently without fans, minimizing maintenance and extending its lifespan. It also supports remote firmware upgrades, smart string monitoring, and Bluetooth + app integration for simplified operation and monitoring.
Built with Type II SPD protection on both DC and AC sides, anti-islanding protection, and leakage current monitoring, the SOFAR KTLX-G3 guarantees safe and stable operation. Its compact, lightweight design makes installation easy for both residential and small commercial projects.
SOFAR 3.3K~12KTLX-G3 Three-Phase Dual MPPT Inverter: The Smart Choice for Modern Solar Rooftops
If you're planning a rooftop solar system for your home or small commercial space, the inverter you choose makes all the difference. The SOFAR 3.3K~12KTLX-G3 is a third-generation three-phase inverter built to deliver high performance, low maintenance, and reliable energy output all in a compact, fanless design.
What Makes the SOFAR KTLX-G3 Stand Out?
The KTLX-G3 series is SOFAR's upgraded residential and small commercial inverter range, available in eight power classes from 3.3 kW to 12 kW. Whether you're installing a small home system or a larger rooftop project, there's a model sized right for your needs.
Here's what sets it apart from the crowd:
98.6% Peak Efficiency - More Solar Power, Less Waste
The SOFAR KTLX-G3 achieves a maximum efficiency of 98.6%, which means almost none of the energy your panels generate is lost during conversion. With wide MPPT voltage range of 140V to 1000V and a high DC input capacity of up to 1100V, it captures energy efficiently even during early morning and late evening hours when sunlight is low.
Fanless Natural Cooling - Zero Noise, Longer Life
Unlike many inverters that rely on fans, the KTLX-G3 uses natural convection cooling. No moving parts means no fan failures, no noise, and significantly less maintenance over the inverter's lifetime. It operates reliably across a wide temperature range of -30°C to +60°C and is rated IP65, making it suitable for both indoor and outdoor installations.
Smart Monitoring at Your Fingertips
The inverter comes equipped with Bluetooth, WiFi, RS485, and LCD display giving you multiple ways to monitor your solar system. Through the SOFAR View app, you can track real-time energy production, check system health, and even receive remote firmware upgrades. Smart string-level monitoring helps detect shading or performance issues at the panel level, ensuring your system stays optimised.
Built-in Safety You Can Trust
Safety is built into every layer of this inverter. It includes Type II SPD protection on both DC and AC sides, anti-islanding protection, DC reverse polarity protection, leakage current monitoring, and ground fault detection. These protections ensure your system remains safe for your family and compliant with grid requirements.
Who Is This Inverter Best For?
The SOFAR KTLX-G3 is ideal for:
- Residential rooftop solar systems with three-phase connections
- Small commercial buildings looking for a reliable, low-maintenance inverter
- Installations on complex rooftops with panels facing different orientations (thanks to dual MPPT)
- Projects eligible under PM Surya Ghar or MNRE subsidy schemes
Key Specifications at a Glance
| Feature | Details |
|---|---|
| Power Range | 3.3 kW – 12 kW |
| Max. DC Input Voltage | 1100 V |
| MPPT Voltage Range | 140 V – 1000 V |
| No. of MPPTs | 2 |
| Max. Efficiency | 98.6% |
| Cooling | Natural (Fanless) |
| Protection Rating | IP65 |
| Communication | WiFi, Bluetooth, RS485, LCD |
| Operating Temp | -30°C to +60°C |
| Weight | 17–18 kg |
Final Thoughts
The SOFAR 3.3K~12KTLX-G3 combines high efficiency, smart monitoring, robust safety, and fanless reliability - all in a package built for Indian residential and small commercial solar projects. Its dual MPPT design makes it especially suited for rooftops with varied orientations, ensuring you get the most from every panel you install.
Ready to explore the right capacity for your home or business?
Contact Kondaas today to get a personalised recommendation and subsidy guidance.
Frequently Asked Questions (FAQs)
Q1: What is the difference between MPPT and dual MPPT?
A single MPPT inverter tracks the best power output from all panels as one combined string. A dual MPPT inverter has two independent trackers, allowing panels on different roof orientations or with different shading conditions to be optimised separately - preventing one underperforming string from reducing the output of the entire system.
Q2: What is the benefit of a dual MPPT solar inverter?
Dual MPPT maximises energy harvest when your roof has panels facing different directions (e.g., east and west) or when partial shading affects one section. Each MPPT independently finds the best operating point, so you generate more power overall compared to a single MPPT system in such conditions.
Q3: Is the SOFAR KTLX-G3 eligible for government solar subsidies in India?
Yes, the SOFAR KTLX-G3 is eligible under residential and small commercial subsidy schemes such as the PM Surya Ghar Muft Bijli Yojana and state-level MNRE subsidies. Eligibility depends on your local policy and grid connection type - check with your installer or Kondaas for up-to-date guidance.
Q4: Does the SOFAR KTLX-G3 require regular maintenance?
Minimal maintenance is needed. Since it uses fanless natural cooling with no moving parts, there is no risk of fan failure. Routine checks of connections and occasional cleaning of the unit surface are typically sufficient.
Q5: Can the SOFAR KTLX-G3 work in high-temperature climates like South India?
Absolutely. The inverter is rated to operate in ambient temperatures up to +60°C with an IP65 weatherproof rating, making it well-suited for the hot and humid conditions common across Tamil Nadu and Kerala.
Specifications
| Feature | Details |
|---|---|
| Series Capacity | 3.3 kW – 12 kW (3.3 / 4.4 / 5.5 / 6.6 / 8.8 / 10 / 11 / 12 kW) |
| Max. DC Input Voltage | 1100 V |
| Start-up Voltage | 160 V |
| MPPT Operating Voltage | 140 V – 1000 V |
| Number of MPPTs | 2 MPPTs |
| Max. Efficiency | Up to 98.6% (European: up to 98.0%) |
| Rated AC Output Power | 3.3 kW – 12 kW (depending on model) |
| Power Factor | 0.8 leading to 0.8 lagging (adjustable) |
| Protection Features | DC reverse polarity, Type II SPD (AC & DC), anti-islanding, leakage current & ground fault monitoring |
| Cooling | Natural cooling (fanless, low noise) |
| Ingress Protection | IP65 |
| Operating Temperature | –30°C to +60°C |
| Max. Operating Altitude | 4000 m |
| Dimensions / Weight | 430 × 385 × 182 mm / 17–18 kg |
| Communication | RS485, WiFi, LCD + Bluetooth App |
| Rooftop Solar Subsidy | Eligible under residential and small commercial subsidy schemes (based on local policies) |