Sungrow's flagship 150 kW three-phase string inverter for commercial & industrial PV projects. 98.8% peak efficiency, 7 MPPTs with 48 A per string, AFCI 3.0 with 450 m fault detection, and an air-duct self-cleaning system that cuts O&M cost on dusty industrial rooftops.
Five datasheet-backed advantages that explain why the SG150CX has become Sungrow's flagship 150 kW class string inverter for commercial rooftops, industrial parks and distributed ground-mount projects.
Patented thermal management sustains 98.8% peak efficiency even at 50 °C ambient — most competitors derate above 45 °C. Expanded MPPT voltage range increases annual yield by over 2% versus the prior generation.
+2% yield upliftEnhanced 450 m AFCI cable coverage and 48 A fault current detection trigger millisecond-level rapid shutdown — string-level intelligent disconnection in 20 ms dramatically reduces DC fire risk on large industrial rooftops.
UL 1699B · 20 ms responsePatented removable filter cartridge and fan reverse-rotation mechanism automatically expel accumulated dust — eliminating manual cleaning visits in dusty industrial, desert and agricultural environments.
−40% O&M costPatented detachable AC wiring platform accepts single-core cables up to 400 mm². Field technicians complete AC termination 87% faster than conventional terminal-block inverters — major BoS savings on large rollouts.
≤400 mm² single-coreIndustry-leading 48 A per-string capacity accommodates current-generation bifacial, TOPCon and HJT modules without string undersizing. 7 MPPTs × 3 strings = 21 strings, max 210 kWp PV input.
Up to 210 kWp DCIP66 enclosure with C5 anti-corrosion coating plus integrated DC Type I+II and AC Type II surge protection — the highest single-unit protection class on the C&I string inverter market today.
−30 to +60 °C opsAll values sourced from Sungrow's official SG150CX datasheet (V4 EN, 2024-11). Country-specific grid-code revisions available on request.
| Rated AC Output Power | 150 kW @ 45 °C |
|---|---|
| Max. Efficiency / European Efficiency | 98.8% / 98.2% |
| Number of MPPTs / Strings | 7 × 3 = 21 strings |
| Max. PV Input Power | 210 kWp |
| Max. Input Current per String | 48 A |
| Max. DC Voltage / AC Voltage | 1000 Vdc / 230–400 V (3/N/PE) |
| AFCI Protection | AFCI 3.0 · 450 m detection |
| Protection Rating | IP66 · C5 anti-corrosion |
| Operating Temperature | −30 °C to +60 °C |
| Weight / Dimensions | ≤100 kg · 1025 × 795 × 360 mm |
| Warranty | 5 yr standard · extendable to 25 yr |
| Max. PV Input Voltage | 1000 V |
|---|---|
| Min. PV Input Voltage / Start-up Voltage | 200 V / 250 V |
| Nominal PV Input Voltage | 600 V |
| MPP Voltage Range | 200 V – 1000 V |
| MPP Voltage Range at Rated Power | 500 V – 850 V |
| Number of Independent MPP Inputs | 7 |
| Number of Strings per MPPT | 3 (21 strings total) |
| Max. PV Input Current | 7 × 96 A = 672 A |
| Max. Input Current per String | 48 A |
| Max. Short Circuit Current (Isc) | 7 × 144 A |
| Max. PV Input Power | 210 kWp |
| Rated AC Output Power | 150 kW @ 45 °C |
|---|---|
| Max. AC Output Power | 150 kVA @ 45 °C / 143 kVA @ 50 °C |
| Max. AC Output Current | 225 A |
| Rated AC Voltage | 3 / N / PE, 230 / 400 V |
| AC Voltage Range | 320 V – 460 V |
| Rated Grid Frequency | 50 / 60 Hz |
| Grid Frequency Range | 45 – 55 Hz / 55 – 65 Hz |
| Total Harmonic Distortion (THD) | ≤1% (at rated power) |
| Power Factor (cos φ) | >0.99 default / 0.8 leading – 0.8 lagging adjustable |
| DC Current Injection | <0.5% of rated AC current |
| Max. Efficiency | 98.8% |
|---|---|
| European Weighted Efficiency | 98.2% |
| MPPT Efficiency | >99.9% |
| DC Reverse Polarity Protection | Yes |
| AC Short Circuit Protection | Yes |
| Ground Fault Monitoring | Yes (residual current monitoring) |
| Grid Monitoring | Yes |
| DC Switch / AC Switch | Yes / Optional |
| PV String Current Monitoring | Yes (string-level) |
| PID Recovery / Anti-PID | Yes (optional) |
| AFCI | AFCI 3.0 (450 m detection) |
| Surge Protection | DC Type II / AC Type II |
| Overvoltage Category | DC II / AC III |
| Dimensions (W × H × D) | 1025 × 795 × 360 mm |
|---|---|
| Weight | ≤100 kg |
| Topology | Transformerless |
| Degree of Protection | IP66 |
| Anti-Corrosion Class | C5 |
| Cooling Method | Smart Forced Air with Self-Cleaning Air Duct |
| Operating Temperature Range | −30 °C to +60 °C (derating >45 °C) |
| Storage Temperature Range | −40 °C to +70 °C |
| Relative Humidity (non-condensing) | 0 – 100% |
| Max. Operating Altitude | 4000 m (derating >3000 m) |
| Noise Emission | <65 dB @ 1 m |
| Mounting | Wall-mounted (vertical / tilted) |
| Display | LED indicators + Bluetooth / WLAN (via app) |
|---|---|
| Communication Interface | RS485 (standard) + WLAN / Ethernet (optional) |
| Communication Protocol | Modbus RTU / Modbus TCP / SunSpec |
| Monitoring Platform | iSolarCloud (Sungrow proprietary) |
| Grid Code Compliance | EN 50549, AS/NZS 4777.2, VDE-AR-N 4105, G99, CEI 0-21, IEC 61727 |
| Safety Standards | IEC 62109-1, IEC 62109-2 |
| EMC Standards | EN 61000-6-2, EN 61000-6-3, IEC 62920 |
| Environmental Standards | IEC 60068-2-1/2/14/30, IEC 60721 |
| Standard Warranty | 5 years (extendable to 10 / 15 / 20 / 25 years) |
Region-specific certifications (KEMCO Korea, INMETRO Brazil, SASO Saudi Arabia) issued on request.
Designed for projects between 200 kW and 5 MW where high per-MPPT current, AFCI compliance and low O&M are critical.
Factories, warehouses and logistics hubs with 500 kW – 5 MW rooftop PV arrays. Air-duct self-cleaning is critical in dusty industrial environments.
Shopping centres, office complexes and data centres requiring grid-compliant inverters with full LVRT/HVRT and reactive power support.
24/7 facilities with critical loads. The SG150CX's redundant MPPT design and high MTBF reduce single-point-failure risk; pairs with BESS for backup-grade reliability.
Campuses with large flat rooftops and strong daytime load profile — ideal PV self-consumption match. Multiple SG150CX units scale modularly across building blocks.
Agrivoltaic, brownfield and small utility plants up to 5 MW where multiple SG150CX units replace a central inverter, eliminating single-point failure.
Large-area carport PV systems with bifacial modules. The 48 A per-string capacity accommodates high-current bifacial output without undersizing.
Honest, datasheet-driven answers — written for procurement teams and PV design engineers.
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