QC Solar 181821 Glass-Glass One Panel Three Box

181821 glass-glass one panel three box has significant advantages. It offers multiple cable outlet options, has a unique single junction box design with three boxes on one board, and can increase power while reducing costs.

Available: 20A-35A current

High Reliability

Less potting glue

TUV/UL Certificate

Technical Data

Item	181821（Horizontal）	181821（Horizontal skirt）	181821（Vertical）
Terminals for Ribbons	6	6	6
Rated Current	15A,20.2A,25A(TUV)	15A,20.2A,25A(TUV)	20.2A(TUV)
Rated Current	30A(UL)	30A(UL)	30A(UL)
Rated Voltage	1000V,1500V (TUV/UL)	1000V,1500V (TUV/UL)	1000V,1500V (TUV/UL)
Glue Volume	3*8.5ml	3*8.5ml	3*8.5ml
Reverse Current	40A	40A	40A
Dimensions	892417.5mm	8928.517.5mm	783317.5mm
Temperature Range	-40℃〜+85℃	-40℃〜+85℃	-40℃〜+85℃
Size of Cables	4.0mm²/12AWG	4.0mm²/12AWG	4.0mm²/12AWG
Size of Ribbons	Max.8mm	Max.8mm	Max.8mm
Protection Grade	IP68	IP68	IP68
Flammability Class	5VA	5VA	5VA

Dimensions(mm)

QC solar 181821 glass-glass one panel three box junction box is a cutting-edge solution that has taken the market by storm. As the most popular high-current split junction box, it showcases streamlined technology and an extremely small box body design.

This innovative design minimizes the shadow cast by the module, a crucial factor in reducing power loss and eliminating dreaded "hot spots". By doing so, it significantly boosts the module's efficiency, ensuring that you get the maximum output from your solar setup.

The junction box features a potting volume of 8.5ml and an over-current capability of 25A. This balance between product performance and cost is truly remarkable. It represents an excellent matching that not only meets the current demands but also positions itself well to accommodate the emerging new technical routes.

Whether it's for single facial or bi-facial modules, or the high-efficiency HJT and IEC, this junction box proves to be a versatile and reliable choice. QC Solar has once again demonstrated its commitment to innovation and excellence with this product.

With the dedication from QC Solar to quality and performance, you can trust that the 181821 junction box will provide long-lasting and efficient service. It's not just a component; it's a key element in maximizing the potential of your solar energy system. Embrace the future of solar technology with QC Solar and its remarkable 181821 glass-glass one panel three box junction box.

QC Solar, innovation everywhere!