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Silfab Solar SIL 440 QD DCB4

Brand
Silfab Solar
Model
SIL 440 QD DCB4
SKU / part number
SIL 440 QD DCB4[1]
Category
Solar panels
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Electrical at STC

Rated output (STC)440 W[1]Provisional
Module efficiency?
Voltage at max power (Vmp)?
Current at max power (Imp)?
Open-circuit voltage (Voc)?
Short-circuit current (Isc)?
Power tolerance?

Temperature and system limits

Temperature coefficient, Pmax?
Temperature coefficient, Voc-0.24 %/°C[3]
Temperature coefficient, Isc?
Maximum system voltage1,000 V[5]
Maximum series fuse25 A[5]
NOCT / NMOT?
Rated output at NMOT?
Operating temperature?

Cells and construction

Cell technology?
Cell count?
Bifacial?
Bifaciality?
FrameAnodized aluminum (Black)[4]
Front glass3.2 mm high transmittance, tempered, antireflective coating[4]
Back coverHigh durability, superior hydrolysis and UV resistance, multi-layer dielectric film, fluorine-free PV backsheet[4]
Panel format?

Mechanical and connections

Dimensions?
Weight?
Connectors?
Cable length?
Junction box rating?
Mounting?
Design load, front?
Design load, rear?

Installation (from the manual)

Conductors

Cable bending radius / connector notesCable bending radius should be at least 60 mm (2 3/8”).[5]

Clearances and orientation

Mounting methods and clamp zonesClamp Long Edge Primary 275.5 - 350.5 +3600 / -2667 +5400 / -4000; Clamp Long Edge Secondary 150.5 - 275.5 +2667 / -2400 +4000 / -3600; Clamp Long Edge Three Rails 150.5 - 350.5 and red zone +3600 / -3600 +5400 / -5400; Clamp Short Edge 200 - 250 +1600 / -1600 +2400 / -2400; M6 or 1/4” corrosion-resistant bolts, nuts, and a locking feature are required; are permitted for the following Silfab Solar product lines: SIL-XXX BK/BG/HC/HC+/QD/HN/HM/QM/XM/ XM+/XL.[5]

Grounding

GroundingA UL listed grounding lug can be bonded to the grounding hole located on the bottom flange of Silfab Solar’s module frame.; The grounding lug should be attached to the frame grounding hole using stainless steel hardware (bolt, serrated flange nut, toothed lock washer, KEPS nut, etc).; Silfab Solar modules may be bonded to a racking or rail system using an integrated grounding method certified to UL 2703.[5]

Not in the manual: Torque

Page 1 of 2 · Installation values · ? means nothing is recordedAggregated, often community-reported information, not official documentation. Do not rely on it for installation, purchase or compliance decisions; always confirm values with the manufacturer’s official documentation. Charged Reviews accepts no responsibility for errors.

Charged Reviews · Quick reference

Silfab Solar SIL 440 QD DCB4 · SIL 440 QD DCB4

Warranty

Product warranty?
Power warranty term?
First-year degradation?
Minimum output in year 1, as printed?
Annual degradation after year one?
Warranted final output?
Coverage conditions?
Remedy?
Labor and shipping?
Transfer to another owner?

Certifications and listings

UL 61730?
UL 1703?
IEC 61215?
IEC 61730?
IEC 62804?
CEC listing?

Documents and sources

  1. Silfab Solar 440W 108 Half-Cell BLK/BLK Solar Panel w/Domestic Contents, SIL 440 QD DCB4Distributor product page · Revised Not stated · Checked https://www.greentechrenewables.com/product/silfab-solar-440w-108-half-cell-blkblk-solar-panel-wdomestic-contents-sil-440-qd-dcb4
  2. SIL 440 QD DCB4 · DatasheetDistributor datasheet · Revised Not stated · Checked https://cdn.myced.com/images/Products/ZZ0000/ZZ3014/00000/ZZ301400057_DS.pdf
  3. ViewOfficial datasheet · Revised Not stated · Checked https://cdn.myced.com/images/Products/ZZ0000/ZZ3014/00000/ZZ301400049_DS.pdf
  4. Silfab Prime – SIL-440 QD (NTC)Official datasheet · Revised Not stated · Checked https://silfabsolar.com/wp-content/uploads/2026/09/Silfab-SIL-440-QD-Data-Generic-20260804-Final.pdf
  5. Installation Manual, Prime, Elite, Commercial, UtilityOfficial instruction manual · Revised Not stated · Checked https://silfabsolar.com/wp-content/uploads/2026/04/SILFAB-SSI-13-INSTALLATION-MANUAL-FINAL.pdf