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SILFAB 440w Residential Solar Module
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Silfab SIL-440 QD Specifications

Model SIL-440 QD
Power Output (STC) 440 W
Module Efficiency 22.6 %
Cell Type 108 half-cut N-Type NTC (182 x 92 mm)
Voltage at Pmax (Vmp) 33.41 V
Current at Pmax (Imp) 13.17 A
Open Circuit Voltage (Voc) 38.97 V
Short Circuit Current (Isc) 14.22 A
Dimensions 67.8 x 44.6 x 1.37 in (1721 x 1133 x 35 mm)
Weight 46.3 lbs (21 kg)
Frame Anodized aluminum (black)
Glass / Backsheet 3.2 mm tempered AR glass / fluorine-free black backsheet
Junction Box / Connector UL 3730, IP68, 3 diodes / Stäubli MC4
Temperature Coefficient (Pmax) -0.29 %/°C
Certifications UL 61215/61730, CSA, IEC, CEC Listed, Fire Type 2
Origin Made in the USA
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Silfab SIL-440 QD 440W Residential Solar Module

SKU SIL-440-QD-440W-RES
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SIL-440 QD 440W N-Type Triple-Black Module

The Silfab SIL-440 QD is a 440-watt N-type (NTC) residential module with a clean, elegant triple-black design, black frame, black backsheet, and uniform cells, manufactured in the USA. Its next-generation 108 half-cut N-type cells deliver 22.6% efficiency, more power per square foot, and consistent performance over the lifetime of the panel for premium residential rooftops.

N-type NTC cell technology improves shade tolerance, low-light response, and high-temperature performance while reducing degradation and LID compared with conventional panels. A compact 67.8 in format at 46.3 lbs makes the SIL-440 QD easy to handle on the roof, and Stäubli MC4 connectors with a 1000 V maximum system voltage simplify residential string design.

Silfab SIL-440 QD Features

  • Made in the USA: Silfab Prime NTC modules are manufactured in the USA for tier-one quality and supply-chain confidence.
  • 440W N-Type Power: 108 half-cut N-type cells reach 22.6% efficiency for high output on space-limited residential roofs.
  • Triple-Black Aesthetic: Black frame, black backsheet, and uniform cells deliver a clean, premium rooftop appearance.
  • Strong in Heat & Shade: N-type NTC cells maintain output at high temperatures and improve low-light and shaded performance.
  • 25 / 30-Year Warranty: RETC- and Kiwa PVEL-tested with a 25-year product and 30-year performance warranty.

Next-Generation N-Type Cell Technology

Silfab Prime NTC cells use an n-type wafer with a rear passivation layer for better charge-carrier collection and lower recombination, raising efficiency and cutting degradation. Third-party validated by RETC and Kiwa PVEL and manufactured in the USA, the SIL-440 QD pairs a premium all-black aesthetic with a 25-year product and 30-year performance warranty for homeowners who expect long-term reliability.

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Silfab SIL-440 QD Technical Review

The Silfab SIL-440 QD delivers 440 W at STC from 108 half-cut N-type NTC cells, operating at 33.41 V Vmp / 13.17 A Imp with a 38.97 V Voc and 14.22 A Isc, and reaching 22.6% module efficiency. Its triple-black design, anodized black frame with a fluorine-free black backsheet and 3.2 mm tempered AR glass, gives a premium residential appearance, while a compact 67.8 x 44.6 in format at 46.3 lbs keeps installs manageable. A UL 3730 IP68 junction box with three diodes and Stäubli MC4 connectors support a 1000 V maximum system voltage, 25 A series fuse rating, and 0 to +10 W positive power tolerance. With a -0.29 %/°C power temperature coefficient, -40 to +85°C range, UL/IEC/CEC certifications, Fire Type 2 rating, USA manufacturing, and a 25-year product plus 30-year performance warranty, the SIL-440 QD is a premium choice for residential rooftop solar.

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Silfab SIL-440 QD 440W N-Type Triple-Black Solar Panel
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