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Tesla

Tesla T420S (420W)

Residential · 420W
78
SCORE /100
30 specs
Score this as…
⭐ General / Balanced📐 Max Efficiency (Tight Roof)🛡️ Durability & Warranty🌡️ Hot-Climate Buyer⚡ High-Output / Commercial-Scale🪶 Easy-Install / Older Roof

Score Breakdown

Power Output 93
Certifications 84
Efficiency & Real-World Performance 83
Temperature & Climate Resilience 71
Warranty & Durability 65
Build & Install 40

DC Electrical Characteristics

STC Power Rating
420W
PTC Power Rating
392.2W
STC Power per unit of area
18.0W/ft (193.2W/m)
Peak Efficiency
0.1932
Power Tolerances
0%/+5%
Number of Cells
144
Imp
10.27A
Vmp
40.9V
Isc
11.16A
Voc
48.5V
NOCT
45.7°C
Temp. Coefficient of Power
-0.33%/K
Temp. Coefficient of Voltage
-0.126V/K
Series Fuse Rating
20A
Maximum System Voltage
1000V

Mechanical Characteristics

Type
Monocrystalline Silicon
Output Terminal Type
Multicontact Connector Type 4
Frame Color
Black
Backsheet Color
Black
Length
82.4in (2,094mm)
Width
40.9in (1,038mm)
Depth
1.6in (40mm)
Weight
55.8lb (25.3kg)
Installation Method
Rack-Mounted

Warranty and Certifications

80% Power Output Warranty Period
25yrs
90% Power Output Warranty Period
15yrs
Workmanship Warranty Period
25yrs
UL Fire Classification
Type 1
Compliances
UL 1703, IEC 61215, IEC 61730
CSI Listed
Yes