Charged Reviews · Quick reference
SEG Solar SEG-420-BTD-BG
- Brand
- SEG Solar
- Model
- SEG-420-BTD-BG
- SKU / part number
- SEG-420-BTD-BG[1]
- Category
- Solar panels

Electrical at STC
| Rated output (STC) | 420 W[1]Provisional |
|---|---|
| Module efficiency | 21.51 %[1]Provisional |
| Voltage at max power (Vmp) | 31.9 V[1]Provisional |
| Current at max power (Imp) | 13.17 A[1]Provisional |
| Open-circuit voltage (Voc) | 38.5 V[1]Provisional |
| Short-circuit current (Isc) | 13.83 A[1]Provisional |
| Power tolerance | ? |
Temperature and system limits
| Temperature coefficient, Pmax | -0.3 %/°C[1]Provisional |
|---|---|
| Temperature coefficient, Voc | -0.25 %/°C[3] |
| Temperature coefficient, Isc | ? |
| Maximum system voltage | 1,500 V[1]Provisional |
| Maximum series fuse | ? |
| NOCT / NMOT | ? |
| Rated output at NMOT | ? |
| Operating temperature | ? |
Cells and construction
| Cell technology | N-Type[1]Provisional |
|---|---|
| Cell count | ? |
| Bifacial | Yes[1]Provisional |
| Bifaciality | ? |
| Frame | Black anodized aluminium alloy[3] |
| Front glass | 2.0 mm AR coating semi-tempered glass[3] |
| Back cover | 2.0 mm Semi-tempered glass[3] |
| Panel format | ? |
Mechanical and connections
| Dimensions | 30 D × 1,134 W × 1,722 L mm[1]Provisional |
|---|---|
| Weight | 24 kg / 52.91 lb[2] |
| Connectors | ? |
| Cable length | ? |
| Junction box rating | ? |
| Mounting | ? |
| Design load, front | ? |
| Design load, rear | ? |
Installation (from the manual)
Torque
| Clamp or bolt torque | 16 to 20 N·m(141.61 to 177.01 in-lb*)[4] |
|---|
Clearances and orientation
| Mounting methods and clamp zones | Screw installation (Table 2): Four outer mounting holes, +5400/-2400 Pa; Clamp installation (Table 3), clamp length ≥50mm, Mounting rail cross the long side, L=A/4±50mm: +5400/-2400 Pa; Clamp installation (Table 3), clamp length ≥50mm, Mounting rail parallel the long side, L=A/4±50mm: +2400/-2400 Pa; Clamp installation (Table 3), clamp length ≥50mm, Mounting rail cross the short side, W=B/4±50mm: +3600/-2400 Pa; Clamp installation (Table 3), clamp length ≥50mm, Mounting rail parallel the short side, W=B/4±50mm: +1600/-1600 Pa[4] |
|---|
Grounding
| Grounding | A bonding or toothed washer is required to make proper and reliable electrical grounding connection with the anodized aluminum frame.; Consider using a lay-in lug, rated for outdoor use, if the module grounding conductor is to be larger than 10 AWG.[4] |
|---|
Not in the manual: Conductors
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.