

SG125CX-P2 125KW Solar String Inverter
125KW Solar inverter with 12×98.5% MPPTs, 500W+ PV compatibility, smart IV diagnostics, 240mm² Al cable support, IP66/C5/SPD protection, and AFCI 2.0 safety.
HIGH PERFORMANCE
12 independent MPPT channels achieving 98.5% peak efficiency.
15A DC input capacity for seamless integration with 500W+ solar panels.
Adaptive shading mitigation technology.
INTELLIGENT OPERATION
Real-time component health monitoring & safeguarding.
IV curve scanning for precise fault detection.
Grid event logging for streamlined remote maintenance.
COST-EFFICIENT DESIGN
Supports aluminum AC cabling up to 240mm².
Pre-installation-ready AC connections via modular cable trays.
ROBUST PROTECTION
IP66-rated weatherproof & corrosion-resistant construction.
Dual-stage DC surge protection (Type I+II) + AC Type II SPD.
Advanced arc fault detection (AFCI 2.0 compliance).
Type DesignationSG125CX-P2
Input ( DC )
- Recommended max. PV input power175 kWp
- Max. PV input voltage1100 V
- Min. PV input voltage / Startup input voltage180 V / 200 V
- Nominal PV input voltage600 V
- MPPT voltage range180 V – 1000 V
- No. of independent MPP inputs12
- No. of PV strings per MPPT2
- Max. PV input current360 A ( 30 A * 12 )
- Max. DC short-circuit current480 A ( 40 A * 12 )
- Max. current for DC connector30 A
Output ( AC )
- Rated AC output power125 kW
- Max. AC output apparent power125 kVA
- Max. AC output current181.1 A
- Rated AC output current( at 230V )181.1 A
- Rated AC voltage3 / N / PE, 220 V / 380 V, 230 V / 400 V
- AC voltage range320 V – 480 V
- Rated grid frequency / Grid frequency range50 Hz / 45 – 55 Hz, 60 Hz / 55 – 65 Hz
- Harmonic ( THD )< 3 % ( at rated power )
- Power factor at nominal power / Adjustable power factor> 0.99 / 0.8 leading – 0.8 lagging
- Feed-in phases / AC connection3 / 3-N-PE
- Max. efficiency / European efficiency98.5% / 98.3%
Protection and Function
- Grid monitoringYes
- DC reverse polarity protectionYes
- AC short-circuit protectionYes
- Leakage current protectionYes
- Ground fault monitoringYes
- Surge protectionDC Type I + II / AC Type II
- DC switchYes
- PV string current monitoringYes
- Arc fault circuit interrupter (AFCI)Yes
- PID recovery functionYes
- Optimizer compatibilityOptional
- RSD compatibilityOptional
General Data
- Dimensions ( W * H * D )1020 mm * 795 mm * 360 mm
- Weight≤ 93 kg
- Mounting methodWall-mounting bracket
- TopologyTransformerless
- Degree of protectionIP66
- Night power consumption< 5 W
- CorrosionC5
- Operating ambient temperature range-30 to 60 ℃
- Allowable relative humidity range (non-condensing)0 % - 100 %
- Cooling methodSmart forced air cooling
- Max. operating altitude4000 m
- DisplayLED, Bluetooth+APP
- CommunicationRS485 / WLAN ( optional ) / Ethernet ( optional )
- DC connection typeEVO2 ( Max. 6 mm² )
- AC connection typeOT / DT terminal ( Max. 240 mm² )
- AC cable specificationOutside diameter 30 mm - 60 mm
- ComplianceIEC 62109-1, EN/IEC 61000-6-1/2/3/4, IEC 61727, IEC 62116, EN 50549-1/2, UTE C15-712-1, VDE V 0126-1-1, VDE-AR-N 4105:2018, VFR 2019, NC RfG, G99, UNE 217002, NTS, CEI 0-21 2019,CEI0-16 2019, NRS-097-2-1, IEC 63027
- Grid SupportQ at night function, LVRT, HVRT, active & reactive power control and power ramp rate controlramp rate control