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REC Group

REC Group REC Alpha Pure 405W (REC405AA Pure Black Series) — note: the 405W SKU belongs to the original "REC Alpha Pure Black Series" (product code RECxxxAA Pure Black), not the newer "REC Alpha Pure 2" line, which is sold in 400/410/420/430W steps with no 405W option

Residential · 405W · Monocrystalline (heterojunction, half-cut) · Discontinued
View Datasheet →
93
SCORE /100
25 specs · ✓ 25 verified
Score this as…
⭐ General / Balanced📐 Max Efficiency (Tight Roof)🛡️ Durability & Warranty🌡️ Hot-Climate Buyer⚡ High-Output / Commercial-Scale🪶 Easy-Install / Older Roof

Score Breakdown

Efficiency & Real-World Performance 97
Warranty & Durability 89
Power Output 88
Temperature & Climate Resilience 88
Build & Install 82
Certifications 72

DC Electrical Characteristics

STC Power Rating
405W✓ source
STC Power per unit of area
219 W/m² (derived from 405W / 1.850 m²; datasheet also states 20.3 W/sq ft)✓ source
Peak Efficiency
0.219✓ source
Power Tolerances
0/+5W✓ source
Number of Cells
132✓ source
Imp
9.56A✓ source
Vmp
42.4V✓ source
Isc
10.14A✓ source
Voc
48.9V✓ source
NOCT
44°C (±2°C)✓ source
Temp. Coefficient of Power
-0.26%/°C✓ source
Temp. Coefficient of Voltage
-0.24%/°C✓ source
Series Fuse Rating
25A✓ source
Maximum System Voltage
1000V✓ source

Mechanical Characteristics

Type
Monocrystalline (heterojunction, half-cut)✓ source
Output Terminal Type
Stäubli MC4 PV-KBT4/KST4, 12 AWG (4mm²)✓ source
Frame Color
Black (anodized aluminum)✓ source
Backsheet Color
Black (highly resistant polymer)✓ source
Length
1821mm✓ source
Width
1016mm✓ source
Depth
30mm✓ source
Weight
20.5kg✓ source

Warranty and Certifications

90% Power Output Warranty Period
25 years (92% of rated power at year 25, standard warranty)✓ source
Workmanship Warranty Period
20 years standard (25 years under REC ProTrust if installed by REC Certified Professional)✓ source
Compliances
IEC 61215:2016, IEC 61730:2016, UL 61730 (pending at datasheet publication), ISO 14001:2004, ISO 9001:2015, OHSAS 18001:2007, IEC 62941✓ source