Buy Okaya 5KW 3 Phase On Grid Inverter at Best Price

Q: I have a three-phase connection at home — can I still use a cheaper single-phase inverter with some workaround?

No, there isn't a safe workaround for this. A three-phase connection needs a three-phase inverter — net metering inspections specifically check for phase compatibility, and a mismatch gets flagged and requires replacement. The 5KW P3 is built for exactly this situation.

Q: I see two efficiency numbers listed — which one should I actually use to estimate how much power I'll generate over a year?

Euro efficiency (97.5% on this model) is the more realistic figure for annual estimates, since it's a weighted average across the varying output levels your system experiences through a typical day — sunrise, midday peak, cloud cover, evening. The other figure, max efficiency (98%), only reflects performance under ideal peak conditions.

Q: My roof has panels facing two different directions — will this inverter handle that setup well?

Not ideally. This model has a single MPPT tracker, which treats all connected panels as one combined string optimized for one set of conditions. If your panels face different directions or get shaded at different times, a dual-MPPT model like the 8KW P3 would manage each string independently and perform better for that layout.

Q: If something underperforms in my system, will I be able to tell which part of my array is the problem?

Yes — smart string-level monitoring tracks performance at a more detailed level than just total system output, helping installers and technicians pinpoint issues like a loose connection or a degrading panel faster during servicing.

Q: I live somewhere with high altitude — does that affect how well this inverter performs?

It might, above 2000m, where the inverter requires derating due to thinner air reducing natural convection cooling efficiency. For the vast majority of Indian installations — plains, coastal areas, most cities — this isn't a practical concern at all.

Q: Since this three-phase model costs more than the single-phase 5KW, do I also get a longer warranty?

No — both the 5KW P1 and 5KW P3 carry the same 10-year (120-month) standard warranty. The price difference reflects the three-phase hardware itself, not any difference in coverage length.

Product Description
Features
Specification

Product Description

The Okaya Solar GTI 5kW P3 is engineered for optimal solar performance with a maximum conversion efficiency of 98% and Euro efficiency of 97.5%. It supports a peak DC input of 6kW, 1000V DC voltage, and operates effectively across a wide MPPT voltage range of 200–1000V. Integrated anti-islanding, over-voltage, and surge protection ensure safe, uninterrupted operation. It features a bright LED display for real-time system monitoring. Ideal for residential setups, the GTI 5kW P3 is BIS & IEC certified and comes with a 10-year standard warranty.

Features

• 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.

Specification

• Rated AC output power: 5 kW (three-phase)

• Max. peak DC input power: 6 kW

• Max. DC input voltage: 1000 V

• MPPT architecture: 1 MPPT tracker (string per MPPT: 1)

• MPPT tracking voltage range: 200 – 1000 V

• Min. start voltage: 150 V

• Max. MPPT input current: 20 A

• MPPT short-circuit current: 26 A

• Rated grid voltage: 380 / 400 / 415 V (operating window 300 V – 500 V)

• Max. AC output current: 7.2 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

Q1. I have a three-phase connection at home — can I still use a cheaper single-phase inverter with some workaround?

No. A three-phase electrical connection requires a compatible three-phase inverter. There is no safe or compliant workaround for using a single-phase inverter on a three-phase connection. During net-metering approval, utilities verify phase compatibility, and any mismatch may result in rejection or replacement of the inverter. The 5KW P3 is specifically designed for three-phase installations.

Q2. I see two efficiency numbers listed — which one should I actually use to estimate how much power I'll generate over a year?

For estimating annual energy production, Euro efficiency (97.5%) is the more useful figure because it represents a weighted average of inverter performance across varying operating conditions throughout the day. The maximum efficiency (98%) represents peak performance under ideal laboratory conditions and is not typically achieved continuously during normal operation.

Q3. My roof has panels facing two different directions — will this inverter handle that setup well?

This model features a single MPPT (Maximum Power Point Tracker), which is best suited for solar panels installed with the same orientation and sunlight conditions. If your panels face different directions or experience uneven shading, a dual-MPPT inverter, such as the 8KW P3, can optimize each string independently and deliver better overall energy generation.

Q4. If something underperforms in my system, will I be able to tell which part of my array is the problem?

Yes. The inverter supports smart string-level monitoring, allowing installers and service technicians to monitor performance in greater detail than total system output alone. This helps identify issues such as loose connections, underperforming panels, or string faults more quickly, reducing maintenance time and improving system reliability.

Q5. I live somewhere with high altitude — does that affect how well this inverter performs?

For most installations across India, altitude is not a concern. However, at elevations above 2,000 metres, the inverter may require output derating because thinner air reduces the effectiveness of natural convection cooling. This specification mainly applies to high-altitude installations and generally does not affect systems installed in plains, coastal regions, or most urban areas.

Q6. Since this three-phase model costs more than the single-phase 5KW, do I also get a longer warranty?

No. Both the 5KW P1 (single-phase) and 5KW P3 (three-phase) models are backed by the same 10-year (120-month) standard warranty. The higher price of the three-phase model reflects its additional hardware and compatibility with three-phase electrical systems, not a difference in warranty coverage.

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OKAYA SOLAR GTI 5KW P3

₹ 156000.00 (Incl. of all taxes)

Capacity

5kW

Warranty

120 Months

Technology

MPPT

PAPERLESS WARRANTY

100% Genuine

Security policy

Product Description

Features