Strength Certified! QC Solar's 3Qxy Series 40A Junction Box Awarded TÜV SÜD Certification
On June 3, 2026, at the 19th SNEC International Photovoltaic Power Generation and Smart Energy Conference & Exhibition, Qc Solar's 3Qxy series 40A junction box was officially awarded the TÜV SÜD certification. This certification was conducted in accordance with the IEC 62790 international technical specifications, and key members of TÜV SÜD's core management team attended the presentation ceremony to witness this important milestone.

Throughout a comprehensive suite of rigorous tests, the product successfully passed critical evaluation items, including TC50, TC200, junction temperature, and reverse current. Its high-temperature tolerance and electrical safety performance fully met international regulatory standards. This authoritative certification serves as a dual endorsement of QC Solar's product technology and quality control system by both the market and professional institutions, highlighting the company's core competitiveness in the Photovoltaic Connector sector.
QC Solar stated that, relying on TÜV SÜD's professional and rigorous testing system, the product's performance has been authoritatively verified. This also proves that the 3Qxy series 40A junction box can adapt to various complex operating conditions, with its safety and stability ranking among the top internationally. Looking to the future, the company will continue to deeply cultivate technological research and development, refine product quality, and empower the development of the global PV industry with reliable photovoltaic connection technology.











