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455W N-type Bifacial Double Glass Traceable LB All Black MC4
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JA Solar 455W N-Type Double Glass Bifacial Traceable All Black Solar Panel

JAM54D-41-455-LB-TS-AB-MC4
£63.65 ex. VAT
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Lower DegradationBetter long-term performance
High ReliabilityBuilt for all weather conditions
Greater Energy YieldMore power from your roof

JA Solar 455W N-Type Double Glass Bifacial Traceable All Black Solar Panel

The JA Solar JAM54D41 LB 455 W is an N-type mono, 16BB solar panel. It delivers 22.8 % module efficiency from a 1,762 × 1,134 mm frame.

About the JA Solar Deep Blue 4.0 Pro range

Deep Blue 4.0 Pro is JA Solar's n-type platform, using Bycium+ cells with a better temperature coefficient, lower light-induced degradation and improved low-light behaviour than the p-type modules it replaces.

At 1,762 × 1,134 mm it is a residential-format module, sized to fit the rafter spans and roof planes of a standard UK house. The black frame and dark cells keep the array visually quiet on a front-facing roof. Being bifacial, it earns most of its extra yield on flat roofs, ground mounts and light-coloured surfaces, where light reaches the back of the module; on a pitched tiled roof the rear-side gain is small.

Why installers specify this panel

  • −0.300 %/°C power temperature coefficient — output falls away more slowly as the modules heat up through the middle of the day.
  • Bifacial, 80 % ±10 % — the rear face adds generation from reflected and diffuse light, which suits flat roofs, ground mounts and light-coloured surfaces.
  • All-black appearance — a black anodised frame and dark cells, for domestic roofs where the array has to be discreet.
  • 0 to +5 W power tolerance — every module is sorted to meet or beat its 455 W nameplate rating.

Electrical characteristics (STC)

Rated power (Pmax) 455 W
Module efficiency 22.8 %
Open-circuit voltage (Voc) 39.50 V
Voltage at maximum power (Vmp) 33.00 V
Short-circuit current (Isc) 14.56 A
Current at maximum power (Imp) 13.79 A
Power tolerance 0 to +5 W
Power with 10% rear irradiance 491 W
Maximum system voltage DC 1500 V
Maximum series fuse rating 30 A

STC: AM1.5, 1,000 W/m², 25 °C cell temperature.

Mechanical specification

Cell technology N-type mono, 16BB
Number of cells 108 (6 × 18)
Front / back glass 1.6 mm / 1.6 mm
Dimensions (H × W × D) 1,762 × 1,134 × 30 mm
Weight 22 kg
Junction box IP68, 3 bypass diodes
Connector MC4-EVO2A
Cable 4 mm² (IEC), 12 AWG (UL)

Temperature and load ratings

Temperature coefficient of Pmax −0.300 %/°C
Temperature coefficient of Voc −0.260 %/°C
Temperature coefficient of Isc +0.046 %/°C
Operating temperature −40 °C to +85 °C
NOCT 45 ±2 °C
Maximum static load 5,400 Pa front / 2,400 Pa back
Fire performance UL Type 38

Array sizing

Each panel covers 2.00 m². A 4 kWp array needs 9 of them (4.09 kWp over about 18 m²). A 6 kWp array needs 13 of them (5.92 kWp over about 26 m²). Each module weighs 22.0 kg.

About JA Solar

JA Solar is one of the highest-volume module manufacturers in the industry. Its Deep Blue 4.0 Pro platform uses n-type Bycium+ cells with 16-busbar half-cell interconnection, and carries IEC 61215, IEC 61730, UL 61215 and UL 61730 certification alongside ISO 9001, ISO 14001, ISO 45001 and IEC 62941.

Datasheets, installation manuals and warranty documents for the JA Solar JAM54D41 LB are in the Documents tab below. Buying for a project? Contact our sales team at sales@clearraysolar.com for pallet pricing.

N-Type Cell TechnologyLower degradation and higher energy yield
High Efficiency 22.8 %More power from the same roof space
Double Glass ConstructionEnhanced durability and long service life
30 years Performance WarrantyGuaranteed output for the long term