⚡ Sungrow SG150CX – 150 kW Three-Phase String Inverter for Utility & Commercial PV

Sungrow SG150CX is a high-performance multi-MPPT string inverter for 1000 Vdc systems, delivering 150 kW with up to 98.8% max efficiency. It combines advanced protection (AFCI 3.0, DC surge Type I+II / AC Type II), precise string-level diagnostics with I-V curve scanning, and a rugged IP66 + C5 design with smart forced-air cooling—ideal for desert, coastal, and high-temperature sites across the GCC and Middle East.

⚙️ Technical Specifications

  • 🔠 Model/Designation: SG150CX.
  • 🔋 System type: Multi-MPPT string inverter for 1000 Vdc PV arrays.
  • ✅ Efficiency: Max 98.8%; European efficiency 98.2% (380/400/415 Vac) / 98.4% (480 Vac).

🔌 DC Input

  • 📈 Recommended PV power: 210 kWp.
  • ⚡ Max PV voltage: 1100 Vdc.
  • 🔻 Min input / start-up voltage: 180 V / 200 V.
  • 🎯 Nominal DC voltage (grid match): 600 V (for 380/400/415 Vac); 720 V (for 480 Vac).
  • 🔎 MPPT operating range: 180–1000 Vdc.
  • 🧠 MPPT trackers: 7.
  • 🧵 Strings per MPPT: 3 (21 strings total).
  • 🔢 Max PV input current: 336 A (48 A × 7).
  • 🛡️ Max DC short-circuit current: 462 A (66 A × 7).
  • 🔌 Max current per DC connector: 30 A.

⚡ AC Output

  • 🏷️ Rated active power: 150 kW.
  • 📦 Max apparent power: 165 kVA.
  • 🔢 Max AC current: 250.7 A @ 380 Vac; 240.6 A @ 400/415 Vac; 200.5 A @ 480 Vac.
  • 🔢 Rated AC current: 227.9 A @ 380 Vac; 216.5 A @ 400/415 Vac; 180.4 A @ 480 Vac.
  • 🔌 Grid connection/voltages: 3/N/PE at 220/380, 230/400, 240/415, 277/480 Vac.
  • 🌀 Grid voltage range: 320–480 Vac (for 380/400/415); 380–552 Vac (for 480 Vac).
  • ⏱️ Frequency (range): 50/60 Hz (45–55 / 55–65 Hz).
  • 📉 Current THD: ≤ 1% @ 400 Vac rated load; ≤ 2% @ 480 Vac.
  • 📐 Power factor: > 0.99 (adjustable +0.8 to −0.8).

🛡️ Protections & Smart Functions

  • 🧲 Grid monitoring, DC reverse polarity, AC short-circuit, leakage current protection.
  • 🌩️ Surge protection: DC Type I+II / AC Type II.
  • 🧭 Ground-fault monitoring and integrated DC switch.
  • 📊 String-level current monitoring with high-accuracy I-V diagnostics.
  • 🔥 Smart AFCI 3.0 arc-fault protection (detection range up to ~450 m).
  • 🧠 Built-in PID recovery.
  • 🆘 RSD compatibility: optional (per variant).

🏗️ Mechanical & Environmental

  • 📏 Dimensions (W × H × D): 1025 × 795 × 360 mm.
  • ⚖️ Weight: ≤ 100 kg.
  • 🧱 Mounting: Wall-mount bracket.
  • 🔌 Topology: Transformerless.
  • 💧 Ingress protection: IP66.
  • 🛡️ Corrosion class: C5.
  • 🌙 Night consumption: ≤ 7 W.
  • 🌡️ Operating temperature: −30 to +60 °C.
  • 💧 Relative humidity: 0–100% (non-condensing).
  • ⛰️ Altitude: up to 4000 m.
  • 🧊 Cooling: Smart forced-air.
  • 🖥️ HMI/commissioning: LEDs + Bluetooth mobile app.
  • 🔗 Communications: RS485 / WLAN (optional) / Ethernet (optional).
  • 🔌 DC terminations: EVO2 connectors up to 6 mm².
  • 🔌 AC terminations: OT/DT lugs (120–400 mm²), cable OD 18–38 mm.
  • 📜 Compliance & grid codes: IEC/EN 62109-1/-2, IEC 60529, IEC 61000-6-1/-2/-3/-4, EN 55011/CISPR 11, IEC 63027, EN 50549, IEC 61727, IEC 62116, EN 50530, IEC 60068, VDE 4110/4120, G99, CEI 0-16/0-21, NRS 097, DEWA, and others.
  • ⚙️ Grid support: Q-at-night, LVRT/HVRT, active/reactive power control, ramp-rate control.

🌍 Why SG150CX is ideal for the GCC & Middle East

  • 🌦️ Built for harsh climates: IP66 + C5 against dust/salinity; reliable operation up to +60 °C and 4000 m altitude.
  • 🧠 AI-grade diagnostics: global MPPT scanning boosts yield and pinpoints faulty strings fast with I-V analytics.
  • 🔥 Enhanced safety: AFCI 3.0 with long-range detection and instant shutdown reduces arc risks in large sites.
  • ⚙️ Design flexibility: 7 MPPTs / 21 strings enable efficient layouts for diverse module orientations and high-current 182/210 mm modules.
  • 🛠️ Efficient O&M: self-cleaning air channels, real-time monitoring, and Bluetooth app for rapid commissioning.

🏭 Application Scenarios

  • 🏭 Utility-scale government/community PV plants.
  • 🏢 Large commercial rooftops and industrial campuses.
  • ☀️ Desert and coastal projects across Saudi Arabia, UAE, Oman, Qatar, Bahrain, Kuwait, and Yemen.
  • 🔋 Arrays using high-current 182/210 mm modules on 1000 Vdc systems.

❓ FAQs

What are the standout safety features of the SG150CX?

🔸 AFCI 3.0 (up to ~450 m detection), DC Type I+II / AC Type II surge protection, string-level monitoring, and an integrated DC switch for comprehensive on-site safety.

Does it support precise remote diagnostics?

🔸 Yes—high-accuracy I-V curve scanning and global MPPT search help identify underperforming strings and recover extra yield.

Is it suitable for hot, salty, and dusty climates?

🔸 Absolutely—IP66, C5 corrosion resistance, operation up to +60 °C, and 4000 m altitude make it a perfect fit for the Middle East.

What communications and grid-support features are available?

🔸 RS485 standard; optional WLAN/Ethernet; active/reactive power control with LVRT/HVRT and Q-at-night for advanced grid integration.

📞 Contact Al-Raebi Solar for pricing and a free technical consultation on SG150CX