Cascade Solar

Silfab 440 QD

The Silfab 440 W module is a high-output, premium monocrystalline solar panel engineered for long-term performance in demanding residential and light commercial applications. Manufactured in North America by Silfab Solar, it pairs advanced half-cell architecture with high-efficiency PERC technology to deliver excellent energy density, strong low-light performance, and reduced resistive losses. The robust anodized aluminum frame and high-strength tempered glass are designed for durability under wind, snow, and thermal cycling, while tight production tolerances ensure consistent electrical characteristics across arrays. With its combination of high wattage, refined build quality, and bankable manufacturing standards, the Silfab 440 W is a seriously attractive option for projects where performance, reliability, and aesthetics all matter…

Specifications

Silfab 440 QD
440 W N-type monocrystalline module built for high efficiency and real-world performance. 22.6% module efficiency with 108 half-cut cells for improved shade tolerance and strong low-light output.

Electrical (STC)
Vmp 33.41 V · Imp 13.17 A · Voc 38.97 V · Isc 14.22 A
1000 V max system voltage · 25 A series fuse · 0 to +10 W power tolerance

Thermal Performance
Pmax −0.29%/°C · Voc −0.24%/°C · Isc +0.04%/°C
NOCT 45 °C · Operating range −40 °C to +85 °C

Physical
67.8 × 44.6 × 1.37 in · 46.3 lb
Black anodized aluminum frame · 3.2 mm AR tempered glass
MC4 (Staubli) connectors · 1350 mm leads

Durability & Ratings
5400 Pa front / 4000 Pa rear load rating
Hail tested to 25 mm at 51.6 mph
UL 61215 / 61730 listed · Type 2 fire rating

Warranty
25-year product warranty
30-year linear performance warranty (89.3% output at year 30)

SIL-440-QD

440 W | 22.6% efficiency | N-type cells

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