Product details
About This Product
The Silfab Solar Prime SIL-440 QD 440W N-Type Solar Panel is a 440-watt monocrystalline module from Silfab’s Prime NTC residential series. It uses 108 N-type half-cells and a black frame with black backsheet for a clean rooftop appearance. The module is rated at 22.6% efficiency and uses genuine Stäubli MC4 connectors. Its electrical design includes a 1000 VDC maximum system voltage and positive power tolerance of 0 to +10 W.
Product Explainer Video
Silfab Solar: American Made Technology for 2024 and Beyond
Who This Product Suits
The Silfab Solar SIL-440 QD is suited to residential rooftop installations where installers want a high-output N-type module with a black appearance and strong power density. Its 440W rating makes it practical for systems where available roof area needs to be used efficiently. It can be incorporated into string-inverter, optimizer, or compatible microinverter designs when the module’s voltage and current characteristics are within the selected equipment limits and the system is designed in accordance with applicable NEC requirements.
Specifications Explained
The SIL-440 QD produces 440W at STC with 22.6% module efficiency. Its maximum-power operating point is 33.41 V and 13.17 A, while open-circuit voltage is 38.97 V and short-circuit current is 14.22 A. The module has a 25 A maximum series fuse rating, a 1000 VDC maximum system voltage, and a Pmax temperature coefficient of -0.29% per °C. Its 108 half-cell N-type architecture is designed for reduced degradation and good performance as module temperature increases. The panel is UL 61730 and UL 61215 certified and carries a UL Type 2 fire rating.
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Summary
The Silfab Solar Prime SIL-440 QD combines a 440W output, 22.6% efficiency, N-type half-cell technology, black construction, and installer-standard Stäubli MC4 connectivity in a residential module. Silfab specifies a 25-year product workmanship warranty, subject to its registration and warranty conditions, together with a 30-year linear power performance guarantee. It is a practical choice for US residential systems requiring a high-efficiency, high-output black module from the Silfab Solar Prime range.
Further Information From The Manufacturer
Silfab 440w QD N-Type module; 108 half cells, black frame, black backsheet, 53.1 in, ø 0.22 in (12 AWG), MC4 from Staubli
This product is supplied with MC4 connectors
| Power Output | 440 Watts |
| 108 Cell, Monocrystalline | |
| 35mm Depth, Black Frame, Black Backsheet | |
| 1000 Volts Max Voltage | |
| Manufacturer Warranty | 25 Years |
| Performance Warranty | 30 years linear, 0.5% annual degradation over 30 years |
| Shipping Weight | 46.3 lb |
| Shipping Dimensions | 67.8 x 44.6 x 1.37 in |
About Silfab Solar
Silfab Solar is a North American module manufacturer known for supplying high-quality solar panels into residential, commercial and light industrial markets. The brand is recognised for its focus on manufacturing consistency, installer-friendly products and strong relevance in the U.S. market.
Silfab panels are often chosen for projects that value domestic supply alignment, dependable build quality and well-supported residential module options. The company has developed a strong reputation among installers looking for premium North American panel supply.
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