8kW 3-phase On-grid inverter with dual MPPT trackers for optimal solar harvest, high durability, and robust safety compliance for medium-scale rooftop projects.
The Okaya Solar GTI 8kW P3 delivers powerful solar integration with a peak DC input of 9.6kW, dual MPPT trackers, and a 150–1000V MPPT voltage range. With 98% maximum conversion efficiency and integrated anti-islanding protection, it ensures stable and reliable performance. The inverter features natural convection/smart fan cooling, wide operating temperatures (-25°C to +60°C), and IP65-rated protection for outdoor durability. A user-friendly LED display provides instant system status updates. Certified to BIS and IEC standards, it’s designed for long-term performance with a 10-year warranty.
• Up to 98% Efficiency - Generates more energy from the same sunlight maximizing ROI.
• Wide MPPT Voltage Range - Starts efficiently even in low sunlight or varied weather.
• 120% DC Input Overload & 1100V DC Input Support - Enables greater panel input flexibility and longer string designs.
• Smart String-Level Monitoring - Tracks the performance of individual strings for faster diagnostics.
• Fanless Natural Cooling Design - Silent operation makes it perfect for noise-sensitive environments.
• Dual MPPT Technology - Ideal for installations with different orientations or shading.
• Rated AC output power: 8 kW (three-phase)
• Max. peak DC input power: 9.6 kW
• Max. DC input voltage: 1000 V
• MPPT architecture: 2 MPPT trackers (strings per MPPT: 1)
• MPPT tracking voltage range: 150 – 1000 V
• Min. start voltage: 150 / 180 V
• Max. MPPT input current: 13 A
• MPPT short-circuit current: 20 A
• Rated grid voltage: 380 / 400 / 415 V (operating window 300 V – 500 V)
• Max. AC output current: 11.56 A
• AC connection: 3P + N + E (plug-in connector)
• Max. conversion efficiency: 98%
• Protections integrated: anti-islanding, insulation resistance detection, residual current monitoring, over-voltage protection, surge protection
• DC switch: Optional
• Cooling: Natural convection + smart fan cooling for stable operation
• Communication & monitoring: Wi-Fi / GPRS / RS-485 (for remote monitoring)
• DC connection type: MC-4
• Display: LED with LCD display for local status and diagnostics
• Noise emission: < 30 dB (quiet operation)
• Protection class / Outdoor rating: IP65 (dust-tight, water-resistant)
• Operating ambient temperature: −25 °C to +60 °C
• Relative humidity: 0% – 100%
• Max. operating altitude: 2000 m (derating above 2000 m)
• Night standby power consumption: < 1 W
• Dimensions (W×H×D): 425 × 351 × 160 mm
• Weight: 13.7 kg (±200 g)
• Standard warranty: 10 years
• Certifications: BIS; IEC 62109-1/2; IEC 61727; IEC 61683; IEC 60068; IEC 62116; IEC 61000 EMC
Dual MPPT (Maximum Power Point Tracking) is especially beneficial when your solar array is divided across two roof sections with different orientations or when one section experiences partial shading during parts of the day. Each MPPT independently optimizes the power generated by its connected string, preventing one shaded or differently-oriented section from reducing the performance of the entire solar array. This helps maximize overall energy generation from complex rooftop layouts.
The inverter supports a maximum MPPT input current of 13A per tracker and a maximum short-circuit current of 20A per tracker. Your installer should design the solar strings so that the operating current and short-circuit current remain within these limits. These specifications determine the number of solar panels that can be connected in series and parallel on each MPPT input.
Yes. The inverter supports a maximum DC input capacity of 9.6kW, providing approximately 20% oversizing headroom beyond its rated 8kW AC output. This allows your installer to slightly oversize the solar array to improve energy generation during low-light conditions while keeping power clipping to a minimum, which is a common and recommended solar design practice.
Yes. The inverter supports remote monitoring through Wi-Fi, GPRS, and RS-485 communication. Whether multiple users can simultaneously access system data depends on the features of the monitoring application or cloud platform being used, rather than any limitation of the inverter hardware itself. This makes the inverter suitable for installations that require remote monitoring across multiple sites.
The inverter operates at less than 30 dB, making it extremely quiet during normal operation. It combines natural convection cooling with a smart temperature-controlled fan that runs only when additional cooling is required. Although the noise level is low enough for most environments, outdoor or utility area installation remains the recommended practice for rooftop solar inverters.
No. The 8KW three-phase Solar GTI inverter is covered by the same 10-year (120-month) standard warranty as the rest of Okaya's Solar GTI inverter range, including both single-phase and three-phase models. Choosing a higher-capacity inverter does not reduce or change the warranty coverage.
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OKAYA POWER PVT. LTD.
ENERGIS D-7, 3rd & 4th Floor, Rohtak Rd,
Udyog Nagar, Mangolpuri,
New Delhi - 110041, INDIA
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