JA Solar JAM66D45 LB Series 630W

Premium bifacial n-type TOPCon solar module engineered for maximum yield in commercial and utility installations.


🔹 Key Specifications & Features

  • Rated Maximum Power (Pmax): 630 W (STC)

  • Cell Count / Configuration: 132 cells (6 × 22)

  • Dimensions / Weight: 2,382 × 1,134 × 30 mm; ~ 33.1 kg

  • Cable / Connector:
     • Cable cross section: 4 mm² (IEC) / 12 AWG (UL) 
     • Junction box: IP68, 3 diodes 
     • Connector type: QC4.10 / QC4.10 EVO2 variants

  • Electrical Parameters (typical bin for 630 W):
     • Voc (Open-Circuit Voltage): ~ 48.9 V 
     • Vmp (Voltage at Max Power): ~ 40.7 V 
     • Isc (Short-Circuit Current): ~ 16.18 A 
     • Imp (Current at Max Power): ~ 15.48 A

  • Module Efficiency: ~ 23.3 % (for the 630 W bin in the LB series)

  • Temperature Coefficients:
     • Pmax: –0.29 % / °C
     • Voc: –0.25 % / °C 
     • Isc: +0.045 % / °C

  • Glass / Construction: Double-glass (2.0 mm front and back) for better durability and bifacial capability

  • Load & Mechanical Strength: Front load rating of 5,400 Pa / rear 2,400 Pa (typical for this series)

  • Warranty & Degradation:
     • Product warranty: 12 years 
     • Performance guarantee: 30 years (first year ≤1 % degradation, ~0.4 %/year thereafter)

  • System Voltage & Compliance: Max system voltage of 1,500 V DC; compliant with IEC / UL / ISO standards in DeepBlue series.

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