Charged Reviews · Quick reference
Silfab Solar SIL 420 QD
- Brand
- Silfab Solar
- Model
- SIL 420 QD
- SKU / part number
- SIL 420 QD[1]
- Category
- Solar panels

Electrical at STC
| Rated output (STC) | 420 W[2, 4] |
|---|---|
| Module efficiency | 21.5 %[1, 4] |
| Voltage at max power (Vmp) | 33.08 V[2, 4] |
| Current at max power (Imp) | 12.7 A[2, 4] |
| Open-circuit voltage (Voc) | 38.84 V[2, 4] |
| Short-circuit current (Isc) | 13.5 A[2, 4] |
| Power tolerance | ? |
Temperature and system limits
| Temperature coefficient, Pmax | -0.29 %/°C[1, 4] |
|---|---|
| Temperature coefficient, Voc | -0.24 %/°C[4] |
| Temperature coefficient, Isc | 0.04 %/°C[4] |
| Maximum system voltage | 1,000 V[1, 4] |
| Maximum series fuse | ? |
| NOCT / NMOT | ? |
| Rated output at NMOT | ? |
| Operating temperature | ? |
Cells and construction
| Cell technology | N-Type TOPCon[1]Provisional |
|---|---|
| Cell count | 108 cells[4] |
| Bifacial | ? |
| Bifaciality | ? |
| Frame | Anodized aluminum (Black)[4] |
| Front glass | 3.2 mm high transmittance, tempered, antireflective coating[4] |
| Rear surface | High durability, superior hydrolysis and UV resistance, multi-layer dielectric film, fluorine-free PV backsheet[4] |
| Panel format | ? |
Mechanical and connections
| Dimensions | 35 D × 1,133 W × 1,721 L mm[1, 4] |
|---|---|
| Weight | 21 kg / 46.3 lb[4] |
| Connectors | 1350 mm, ø 5.7 mm, MC4 from Staubli[4] |
| Cable length | ? |
| Junction box rating | ? |
| Mounting | ? |
| Design load, front | ? |
| Design load, rear | ? |
Installation (from the manual)
Not documented in the manual
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.