Description

Product Description

The Sungrow 125 kW PV Inverter (model SG125CX‑P2) is engineered for high‑yield grid‑tied solar systems where performance and reliability are essential. It features 12 independent Maximum Power Point Trackers (MPPTs) to optimise energy harvest from large PV arrays, even when panels are oriented differently or partially shaded. The inverter supports high DC input voltages up to 1100 V and is compatible with modern high‑power PV modules (> 500 W). Advanced functions like dynamic shading optimisation, Smart IV Curve Diagnosis, and grid fault logging help improve output and enable efficient remote O&M. Safety is enhanced with IP66 protection, C5 corrosion resistance, surge protection devices on both DC and AC sides, and AFCI 2.0 arc fault detection. Integrated communication options and LED/Bluetooth monitoring enable easy maintenance and performance tracking. The SG125CX‑P2 is suitable for commercial rooftops, light industrial systems, and medium‑scale solar installations requiring robust performance and scalability.

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Technical Specifications (Bullet Form)

AC Output

• Rated AC output power: 125 kW (125 kVA) nominal three‑phase.

• Maximum AC output current: 181.1 A.

• Nominal AC voltage: 3/N/PE, 230/400 V or 240/415 V.

• AC voltage operating range: 320 – 480 V.

• Grid frequency: 50/60 Hz (range 45‑55 Hz / 55‑65 Hz).

• Power factor: > 0.99 (adjustable).

• Total Harmonic Distortion (THD): < 3 % typical.

DC Input & PV

• Maximum PV input power: ~175 kW recommended.

• Maximum DC input voltage: 1100 V.

• Minimum PV voltage / Startup: 180 V / 200 V.

• MPPT voltage range: 180 – 1000 V.

• Number of independent MPPT trackers: 12.

• PV strings per MPPT: 2 (total 24 string inputs).

• Maximum DC input current: 360 A (30 A per MPPT) with short‑circuit tolerance up to 480 A.

Efficiency

• Maximum conversion efficiency: ~98.5 %.

• European efficiency: ~98.3 %.

Protection & Safety

• Ingress protection: IP66 for dust/water protection.

• Corrosion resistance: C5 rating.

• Surge protection: DC Type I+II SPD, AC Type II SPD.

• Arc Fault Circuit Interrupter (AFCI 2.0) support.

• Built‑in protections: DC reverse polarity, AC short circuit, ground fault/leakage current, grid fault recording.

• Smart O&M features: Key component diagnosis, Smart IV Curve Diagnosis, dynamic shading optimisation.

Monitoring & Communication

• Display: LED with Bluetooth and app support.

• Standard communication: RS485.

• Optional communication: Wi‑Fi / Ethernet.

Physical & Environmental

• Dimensions (W × H × D): 1020 mm × 795 mm × 360 mm.

• Weight: ~87 kg.

• Cooling: Smart forced‑air cooling.

• Operating temperature range: ‑30 °C to +60 °C (derating above ~45 °C).

• Maximum installation altitude: ~4000 m (derating above ~3000 m).

Applications

• Commercial and industrial rooftop PV systems.

• Large ground‑mounted solar installations.

• Medium‑scale utility PV plants requiring multi‑MPPT optimisation.