Sungrow SG33CX / SG40CX / SG50CX Solar Inverter – High-Efficiency Multi-MPPT String Inverter
The Sungrow SG33CX / SG40CX / SG50CX is a high-performance, three-phase string inverter designed for commercial and industrial solar systems. With 5 MPPTs, a maximum efficiency of 98.7%, and PID recovery technology, it ensures higher energy yields and long-term reliability.

Sungrow SG33CX / SG40CX / SG50CX Solar Inverter – High-Efficiency Multi-MPPT String Inverter
The Sungrow SG33CX / SG40CX / SG50CX is a multi-MPPT, three-phase string inverter designed for commercial and industrial solar power plants. With power ratings from 33 kW to 50 kW, this inverter offers maximum system flexibility and high energy conversion efficiency (up to 98.7%).
Equipped with 5 independent MPPTs, the Sungrow inverter optimizes energy harvesting from multiple PV strings, ensuring consistent performance even under shading conditions. Its built-in PID recovery function prevents long-term power loss, while Type II surge protection (SPD) for both DC and AC ensures system safety.
Designed for long-term durability, the IP66-rated inverter is resistant to dust and water, making it ideal for challenging environments. Smart O&M features, including touch-free commissioning, remote firmware updates, and online IV curve scanning, simplify maintenance and reduce operational costs.
With grid compliance, compatibility with bifacial modules, and support for aluminum & copper AC cables, the Sungrow SG33CX / SG40CX / SG50CX series provides a cost-effective and future-proof solution for commercial solar projects.
Key Features
✅ High Efficiency – Up to 98.7% peak efficiency for maximum energy conversion.
✅ 5 MPPT Design – Optimized energy harvesting from multiple PV arrays.
✅ PID Recovery Function – Reduces power degradation and extends module lifespan.
✅ Advanced Protection – Type II SPD for DC & AC, IP66 protection, and anti-PID technology.
✅ Smart O&M – Remote monitoring, IV curve diagnosis, and touch-free commissioning.
✅ Flexible System Integration – Supports bifacial modules, aluminum & copper AC cables.
✅ Robust Design – Dust and water-resistant (IP66), withstands harsh environments.
✅ Grid Compliance – Compatible with global grid standards.
Specifications
Why Choose This Product?
Switching to this product ensures reduced energy costs, enhanced reliability, and long-term performance for your needs.
Our Guarantee
We stand behind the quality of our products and services. Each component comes with its own warranty, plus our comprehensive KFP Warranty for your peace of mind.
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With a track record of success in residential, commercial, and industrial sectors, we’ve delivered sustainable energy solutions that make a difference. From cutting-edge technology to client-focused service, we redefine solar energy standards.
- 20+ years of expertise in solar solutions.
- ISO and LEED certified for quality and sustainability.
- Global portfolio showcasing impactful projects.

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