The Voltas 20KTLX-G4 is a high-performance three-phase on-grid solar inverter designed for commercial and industrial solar energy systems. With a robust 20kW output capacity and advanced features like 3 MPPTs, zero export, and an IP66-rated enclosure, it ensures maximum energy efficiency and long-term durability in a wide range of environmental conditions. Backed by a 10-year warranty, it’s a reliable solution for grid-tied solar installations.

Key Features

20kW Three-Phase Output: Ideal for medium to large commercial and industrial solar systems, ensuring stable and efficient grid-tied operation.
3 MPPTs for Maximum Efficiency: Allows flexible PV array design and optimal solar energy harvesting under varying sunlight conditions.
IP66 Protection Rating: Fully protected against dust and powerful water jets, making it perfect for outdoor installations in harsh environments.
Zero Export Functionality: Prevents energy from being fed back into the grid, meeting local compliance requirements and enabling better energy management.
Wide MPPT Voltage Range (100–1,080V): Supports versatile string configurations and improved solar input flexibility.
High Conversion Efficiency (Up to 98.6%): Minimizes energy loss and maximizes power delivery to the grid.
Advanced Safety Features: Includes ground fault monitoring, anti-islanding, output overvoltage protection, and integrated AFCI for safe operation.
Transformer less Design: Increases efficiency and reduces weight and maintenance needs.
Smart Cooling with External Fan: Maintains performance and longevity even under high-load conditions.
Flexible Grid Compatibility: Supports AC voltage ranges of 220/380V or 230/400V, adjustable up to 277–460V.

Input (PV)

Specification	Details
Max. Input Voltage (V)	1,100 V
Start-up Input Voltage (V)	50 V
MPPT Voltage Range (V)	100–1,080 V
Max. Input Current (A)	18 + 18 + 36 A
Max. Short Circuit Current (A)	22 + 22 + 44 A
Number of MPPTs	3
String Number per MPPT	1 + 1 + 2

Output (Grid)

Specification	Details
Rated Output Power (kW)	20 kW
Max. Output Apparent Power (kVA)	20 kVA
Max. Output Active Power (kW)	20 kW
Rated AC Voltage (V)	220/380, 230/400 V (3L+N+PE)
AC Voltage Range (V)	277–460 V (adjustable)
Max. Output Current (A)	29 A
Rated Grid Frequency (Hz)	50/60 Hz
Grid Frequency Range (Hz)	45–55 / 55–65 Hz
Power Factor	>0.99 (0.8 leading–0.8 lagging)
THDI	<3%
DC Current Injection	<0.5% In

Efficiency

Specification	Details
Max. Efficiency	98.6%
European Efficiency	98.3%

Protection Features

Feature	Availability
Ground Fault Monitoring	Support
Output Over Voltage Protection	Support
Anti-Islanding Protection	Support
Integrated AFCI	Optional
DC Reverse Protection	Support
Surge Arrester	DC Type II / AC Type III

General Information

Specification	Details
Topology	Transformerless
Ingress Protection	IP66
Cooling	External Fan Cooling
Operating Temperature Range (°C)	-25 to +60 (derating above 45°C)
Relative Humidity Range	0–100% (no condensing)
Max. Operating Altitude (m)	3,000 m
Noise Emission (dB)	≤40 dB
Dimensions (mm)	411W × 401H × 162D
Weight (kg)	15.2 kg
Display	Wireless, APP, LCD
Communication	WiFi (2.4G), 4G, GPRS, Bluetooth, RS485

Certification

Specification	Details
Safety Standard	IEC62109-1/-2
EMC Standard	IEC61000-6-1/-2/-3
Grid Code	AS4777.2, EN50549-1, G98, G99, ABNT NBR16149, ABNT NBR16150, VDE4105, CEI0-21, RD1699
Warranty	10 Years

The Voltas 20KTLX-G4 is an ideal inverter choice for commercial solar projects demanding efficiency, reliability, and intelligent control features—all in a rugged, outdoor-ready package.

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Voltas 20KTLX-G4 Three Phase On-Grid Solar Inverter | 20kW | IP66 Rated | 3 MPPT | Zero Export | 10-Year Warranty