Growatt MAX 125KTL3 LV (125kw Solar on Grid Solar Inverter )
$3,540
The latest price update was on: (October 29, 2025)
Description
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Technical Specifications of Growatt MAX 125KTL3-X LV (3-Phase Inverter)
| Feature | Specification |
|---|---|
| Model | Growatt MAX 125KTL3-X LV |
| Inverter Power (AC) | 125 kW nominal |
| Number of MPPTs | 10 |
| DC Inputs / Strings | 20 inputs (2 strings per MPPT) |
| Max DC Voltage | 1100 V |
| MPPT Voltage Range | ~180–1000 V; Start voltage ≈ 195 V |
| Max MPPT Current | 32 A per MPPT |
| DC/AC Ratio | Up to 1.5 |
| Max AC Current | ≈ 198.5 A @400 V (≈ 208.9 A @380 V) |
| AC Voltage Range | 340–440 V; Nominal 400 V (380 V supported) |
| Frequency Range | 45–65 Hz; Supports 50/60 Hz |
| Maximum Efficiency | ~98.8% (European efficiency ~98.5%) |
| Protection & Safety | IP66 rating; Type II SPD on AC/DC; optional AFCI; anti-islanding, surge protection |
| Cooling Method | Smart air cooling (fan) |
| Topology | Transformerless |
| Communication Interfaces | RS232 / RS485 / CAN / USB; optional Wi-Fi / GPRS / PLC |
| Monitoring Features | Intelligent string monitoring, IV-curve scan, LED display, smart diagnosis tools |
| Dimensions (W × H × D) | 970 × 640 × 345 mm |
| Weight | ~84 kg |
| Operating Temperature Range | −30 °C to +60 °C |
| Warranty | ~5 years product warranty |
Growatt MAX 125KTL3 LV Review:
The Growatt MAX 125KTL3 LV is a high-performance, three-phase string inverter designed for large-scale commercial and industrial solar applications. With its impressive 125 kW output capacity and advanced features, it offers a compelling solution for maximizing energy harvest and operational efficiency.
This inverter is engineered for low voltage (LV) grids, making it ideal for regions or projects with specific low-voltage connection requirements. The MAX series benefits from Growatt’s commitment to innovation, combining robust build quality with smart functionalities like remote monitoring, intelligent string detection, and multiple MPPT trackers.
Furthermore, the inverter is equipped with 12 MPPTs, ensuring high energy yield even under shading or mismatch conditions. It supports wide voltage ranges and provides high efficiency levels, with a maximum efficiency of over 98.4%. The product is also compatible with smart grid requirements and offers reliable performance in various environmental conditions.
Key Features & Advantages of Growatt MAX 125KTL3 LV
| Feature | Description / Advantage |
|---|---|
| Max Output Power | 125,000 W (125 kW) – Suitable for large-scale solar plants |
| Grid Type | Three-phase, Low Voltage (LV) – Ideal for specific grid requirements |
| Max Efficiency | >98.4% – Ensures minimal power loss and high performance |
| MPPTs | 12 MPPT inputs – Allows for flexible string configuration and better tracking performance |
| String Monitoring | Intelligent string-level monitoring for easier maintenance and fault detection |
| Smart Diagnostics | IV curve scanning and diagnosis support for proactive system monitoring |
| Communication Options | RS485, Wi-Fi, Ethernet, GPRS – Enables flexible and remote system management |
| Safety Features | Integrated SPD, anti-PID, AFCI – Enhances safety and reliability |
| Cooling System | Smart air cooling – Ensures stable operation in high-temperature environments |
| Environmental Protection | IP66-rated – Dust-tight and water-resistant for outdoor installation |
| Grid Compliance | Supports smart grid functions – Meets global utility requirements |
| Warranty & Support | Strong global support network and warranty coverage |
Each MPP tracker may function to its highest potential with two strings attached, increasing the system's overall energy output.
- WORKS W/ HIGH POWER MODULES
- High-power and bi-facial modules are best matched with string currents up to 16A and MPPT currents of 32A.
Primary Features
- Good Yields
- Up to 10 MPPTs designed with multiple MPPTs
- appropriate for high-power modules
- maximum DC/AC ratio of 1.5
- Security and Dependability
- AFCI security is optional.
- On the DC and AC sides, Type II SPD
- IP 66 level of protection
- Energy Cost at the Optimal Level
- appropriate for AI and Cu AC cables
- PLC communication is optional with a DC 2 in 1 connection.
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Additional information
| Brand |
Growatt |
|---|---|
| Inverters type |
On Grid Inverters |
| watt |
50000W and above |
6 reviews for Growatt MAX 125KTL3 LV (125kw Solar on Grid Solar Inverter )
Input Data (PV)
| Max. DC voltage | 1100V |
| Start voltage | 195V |
| Nominal voltage | 600V |
| MPP voltage range | 180V-1000V |
| No. of MPP trackers | 10 |
| No. of PV strings per MPP tracker | 2 |
| Max. input current per MPP tracker | 32A |
| Max. short-circuit current per MPP tracker | 40A |
Output Data (AC)
| AC nominal power | 125000W |
| Max. AC apparent power | 137500VA |
| Nominal AC voltage (range*) | 220V/380V, 230V/400V (340-440V) |
| AC grid frequency(range*) | 50/60 Hz(45~55Hz/55-65 Hz) |
| Max. output current | 198.5A@400V 208.9A@380V |
| Adjustable power factor | 0.8leading ...0.8lagging |
| THDi | <3% |
| AC grid connection type | 3W+N+PE |
Efficiency
| MAX. efficiency | 98.8% |
| European efficiency | 98.5% |
| MPPT efficiency | 99.9% |
Protection devices
| DC reverse polarity protection | Yes |
| DC switch | Yes |
| AC/DC surge protection | Type II / Type II |
| Insulation resistance monitoring | Yes |
| AC short-circuit protection | Yes |
| Ground fault monitoring | Yes |
| String detection | Yes |
| Anti PID function | Optional |
| Arc fault detection (AFCI) | Optional |
General data
| Dimensions (W / H / D) | 970/640/345mm |
| Weight | 84kg |
| Operating temperature range | –30°C ... +60°C |
| Nighttime power consumption | < 1W |
| Topology | Transformerless |
| Cooling | Smart air cooling |
| Protection degree | IP66 |
| Relative humidity | 0~100% |
| Altitude | 4000m |
| DC connection | H4/MC4 (Max.6mm²) |
| AC connection Connector | OT Terminal (Max. 240mm²) |
| Display | LED/WIFI+APP |
| Interfaces: RS485 / USB /PLC/GPRS/4G/WiFi |
Yes/Yes/Optional/Optional/Optional/Optional |
| Warranty: 5 years / 10 years
|
Yes/Optiona |
| CE, UKCA, IEC62116, IEC61727, CQC, VDE0126, VFR2019, EN50549-1/-2, C10/C11, UNE206007, G99 CEI 0-21/0-16, N4105, UNE206006,MEA, PEA, KSC8565 |
|
| * The AC voltage range and frequency range may vary depending on specific country grid standard. All specifications are subject to change without notice. |
|
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6 reviews for Growatt MAX 125KTL3 LV (125kw Solar on Grid Solar Inverter )
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rara avis
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Is the Growatt MAX 125KTL3 LV compatible with high-power solar panels (e.g., 600W)?
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We used this inverter in a 1 MW solar plant with 600W panels, and it handled them perfectly. Installation was smooth, and the performance has been outstanding. We’re extremely satisfied with the efficiency and quality.
-
-
Does the inverter support online monitoring?
-
One of the reasons we chose Growatt was the remote monitoring feature. Now I can check the system’s output anytime from my phone. It’s super helpful, especially for managing large-scale systems.
-
-
How many MPPTs does this inverter have and what’s the benefit?
-
The 10 MPPTs were a huge advantage for our project, as we had to install panels across multiple roof surfaces. Just dropping one star because I wish there was an installation manual in our local language.
-
-
How does it perform in high-temperature environments?
-
We installed this unit in a southern region with summer temperatures exceeding 45°C (113°F). It worked flawlessly even during peak heat hours. Very impressed with its thermal performance!
-
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We installed three units of the Growatt MAX 125KTL3 LV in a utility-scale project using 600W modules. I was honestly surprised at how smoothly it handled the high current input. The 10 MPPTs helped us optimize every string. No overheating issues, no configuration hassle. Just reliable, high-efficiency output from day one. Highly recommended for commercial-scale PV systems.
GLOBAL LEADING DISTRIBUTED ENERGY SOLUTION PROVIDER
GROWATT GLOBAL FOOTPRINT
andre –
rara avis
samir –
Is the Growatt MAX 125KTL3 LV compatible with high-power solar panels (e.g., 600W)?
webmaster –
We used this inverter in a 1 MW solar plant with 600W panels, and it handled them perfectly. Installation was smooth, and the performance has been outstanding. We’re extremely satisfied with the efficiency and quality.
Karim –
Does the inverter support online monitoring?
webmaster –
One of the reasons we chose Growatt was the remote monitoring feature. Now I can check the system’s output anytime from my phone. It’s super helpful, especially for managing large-scale systems.
Darin –
How many MPPTs does this inverter have and what’s the benefit?
webmaster –
The 10 MPPTs were a huge advantage for our project, as we had to install panels across multiple roof surfaces. Just dropping one star because I wish there was an installation manual in our local language.
Janson –
How does it perform in high-temperature environments?
webmaster –
We installed this unit in a southern region with summer temperatures exceeding 45°C (113°F). It worked flawlessly even during peak heat hours. Very impressed with its thermal performance!
Gani –
We installed three units of the Growatt MAX 125KTL3 LV in a utility-scale project using 600W modules. I was honestly surprised at how smoothly it handled the high current input. The 10 MPPTs helped us optimize every string. No overheating issues, no configuration hassle. Just reliable, high-efficiency output from day one. Highly recommended for commercial-scale PV systems.