Description
50kW 3-phase string inverter with 4 MPPT is a high-performance, on-grid solar inverter engineered for commercial and industrial rooftop or ground-mount installations that need to convert large PV arrays into grid-ready power efficiently and reliably. Delivering a rated output of 50kW (55kW max active power), it’s designed for businesses, factories, and commercial buildings looking to significantly cut grid electricity costs through solar.
At the core of this 50kW 3-phase string inverter with 4 MPPT are four independent MPPT trackers with a wide 200–700VDC operating range, accepting up to 65kW of total DC input power — giving installers real flexibility to design arrays across multiple roof sections or orientations without sacrificing performance. Peak conversion efficiency reaches an impressive 98.7%, with a European efficiency rating of 98.3% and MPPT tracking efficiency above 99%, ensuring maximum energy harvest from your solar investment.
Built for grid-tied commercial applications, the SUN-50K-G-LV supports zero-export functionality for sites restricted from feeding power back to the grid, plus Virtual Synchronous Generator (VSG) application for enhanced grid stability. Optional string-level intelligent monitoring gives installers granular visibility into individual string performance for faster fault diagnosis and maintenance. The inverter is protected by Type II surge protection devices on both DC and AC sides, along with a full protection suite covering reverse-polarity, islanding, ground fault, and overcurrent scenarios.
Rated IP65 for outdoor installation and built on a transformerless topology, this 50kW 3-phase string inverter with 4 MPPT operates reliably from –25°C to 65°C with smart cooling and a designed lifetime exceeding 20 years. Remote monitoring and configuration are supported via RS485, RS232, WiFi, and LAN connectivity, and the unit carries a wide range of international grid connection certifications (CEI 0-21, VDE-AR-N 4105, G99, G98, and more) for compliance across multiple markets.
Key Features
- 50kW rated output / 55kW max active power — built for commercial and industrial-scale solar
- 4 MPPT trackers, 200–700VDC range — up to 65kW total DC input power
- Up to 98.7% max efficiency (98.3% European efficiency) — maximizes energy conversion
- >99% MPPT tracking efficiency — minimal solar harvest loss
- Zero-export application — compliant with grid feed-in restrictions
- VSG (Virtual Synchronous Generator) application — enhanced grid stability support
- Optional string-level intelligent monitoring — granular fault diagnosis per string
- Type II DC & AC surge protection — robust electrical protection
- IP65 protection rating — suitable for outdoor installation
- Transformerless design with smart cooling — high efficiency, compact footprint
- >20-year designed lifetime — long-term reliability for commercial investment
- RS485 / RS232 / WiFi / LAN connectivity — flexible remote monitoring options
- Wide grid compliance certification — CEI 0-21, VDE-AR-N 4105, G99, G98, IEC 62116 & more
Technical Data Table
