SunGoldPower Three-Phase All-in-One Solar Charge Inverter 18kW 48V - PowerCore 18K-48

SunGoldPower PowerCore 18K-48 - 18kW 48V Three-Phase Solar Charge Inverter Build a high-capacity three-phase off-grid solar power system for commercial buildings, farms, workshops, or facilities with demanding electrical loads. The PowerCore 18K-48 combines a pure sine wave inverter, dual solar MPPT charge controllers and battery charging functions in a single unit. It delivers 18,000 watts of rated AC output at 120/208V three-phase and accepts up to 28.8kW of connected photovoltaic input. Typical applications include pumps, refrigeration, compressors, fans, lighting and other compatible three-phase equipment. The unit provides a main load output plus a configurable generator/smart-load port for system designs that require priority loads or generator support. Key Features 18kW rated output: Three-phase pure sine wave AC output at 120/208V, 50/60Hz, with short-duration surge capacity up to twice rated power for 10 seconds. Dual MPPT solar charging: Two independent MPPT trackers accept up to 14.4kW of PV each, 28.8kW combined. Maximum PV input voltage is 600V DC. 48V energy storage: Designed for a nominal 48V battery bank (40–60V operating range); supports lithium-ion, lead-acid and configurable battery types, with compatible BMS communication. Multiple charging and operating modes: Solar-only and combined PV/utility charging, programmable charging schedules, utility bypass, and battery-backed inverter operation. Smart generator / secondary load port: Configurable port can serve a generator input or a secondary load output depending on installation settings. Expandable power: Parallel operation supported for up to six compatible PowerCore units using the manufacturer's required parallel wiring and configuration. Monitoring and protections: LCD status display; RS485, CAN and USB interfaces; Wi-Fi capability and protection functions for overload, short circuit, abnormal voltage and overheating. Technical Specifications Model PowerCore 18K-48 Inverter type All-in-one solar charge inverter; three-phase pure sine wave Rated AC output 18,000 W (18 kW) Maximum AC output 19,800 VA Peak output Up to 2x rated power for 10 seconds Rated AC output voltage 120/208 VAC, three phase (L1 + L2 + L3 + N + PE) Output frequency 50 / 60 Hz Rated AC output current 50 A Nominal battery voltage 48 V DC Battery operating range 40–60 V DC Supported battery types Lithium-ion, lead-acid, or user-defined Maximum battery charge/discharge current 360 A DC Solar PV input capacity 28.8 kW maximum (14.4 kW + 14.4 kW) MPPT trackers 2 independent inputs Maximum PV input current 36 A + 36 A PV start-up voltage 100 V DC Maximum PV input voltage 600 V DC MPPT operating voltage 120–550 V DC Grid / generator AC input 120/208 VAC three phase, 50/60 Hz Continuous AC pass-through current 100 A Maximum inverter efficiency 97.6% MPPT tracking efficiency Greater than 99% Parallel expansion 1–6 compatible units Dimensions (W × H × D) 23.36 × 33.40 × 8.47 in Net weight 118 lb Environmental rating IP20 - indoor use only Operating temperature 14°F to 131°F (-10°C to 55°C); power derating above 113°F (45°C) Cooling / sound Intelligent air cooling; less than 60 dB Communication interfaces RS485, CAN, USB, dry contact; Wi-Fi capability Standards referenced by manufacturer IEC 62109-1, IEC 62109-2, UL 1741; EN 61000-6-1/-6-3, FCC Part 15 Class B; RoHS Documents - PowerCore 18K-48 Technical Data Sheet (PDF) - Manufacturer performance ratings, electrical requirements and dimensions. PowerCore 18K-48 User Manual (PDF) - 52-page installation, wiring, operating settings, parallel-system instructions, fault codes and maintenance information. Installation and Compatibility Notes Important: This inverter is designed for 120/208V three-phase output. It is not a standard 120/240V residential split-phase inverter. Confirm load voltage, phase configuration and system requirements before purchasing. Indoor installation only: IP20-rated unit. Mount it on a suitable solid wall in a dry, adequately ventilated location. Panel string design must respect the 600V maximum PV open-circuit input limit and 120–550V MPPT operating range. Confirm cold-weather open-circuit voltage and component compatibility. Use appropriately sized overcurrent protection, grounding, wiring and batteries. Follow the official manual and applicable electrical codes; installation should be carried out by a qualified professional. This listing is for the PowerCore 18K-48 inverter. Solar panels, battery storage and other system components are separate unless expressly stated in the order. Specifications are based on SunGoldPower's official PowerCore 18K-48 data sheet and user manual. Manufacturer specifications and included accessories may be revised. Consult the current documentation and confirm system suitability before installation.