420W Trina TIER 1 Mono Crystal Solar Panels (TSM-420NEG9R.28)

Trina Solar 420W Mono PV Module (TSM-420NEG9R.28) – 1500V, 21.0% Efficiency, 144-Cell, IP68

PLEASE NOTE THAT SOLAR PANELS ARE COURIERED AT OWN RISK

Product Description

The Trina Solar 420W module is a high-performance monocrystalline panel designed for reliable energy yield in South African residential and commercial solar installations. With 21.0% module efficiency, a 1500V DC system rating, and an IP68-rated junction box, it’s built for dependable performance across harsh outdoor conditions. Its robust construction (AR-coated heat-strengthened glass and anodised aluminium frame) makes it a solid choice for rooftop and ground-mount projects where long-term durability matters.

Key Features

420W output (STC) for strong daily generation

High efficiency: 21.0%

1500V DC maximum system voltage (IEC) for modern PV string design

IP68-rated junction box for outdoor reliability

AR-coated, heat-strengthened glass (3.2mm) for durability and performance

Improved temperature behaviour with low Pmax temperature coefficient (-0.34%/K)

Long warranties: 15-year product + 25-year power warranty

Electrical Specs (STC)

Rated Power (Pmax): 420 W

Power Tolerance: 0 / +5 W

Vmp (Max Power Voltage): 41.3 V

Imp (Max Power Current): 10.17 A

Voc (Open Circuit Voltage): 49.7 V

Isc (Short Circuit Current): 10.69 A

Module Efficiency: 21.0%

Electrical Specs (NOCT)

Pmax: 317 W

Vmp: 38.8 V

Imp: 8.17 A

Voc: 46.7 V

Isc: 8.62 A

Mechanical Specs

Cell Type: Monocrystalline

Number of Cells: 144 cells

Dimensions: 1762 × 1134 × 30 mm

Weight: 21.8 kg

Front Glass: 3.2 mm, High Transmission, AR Coated Heat Strengthened Glass

Encapsulant: EVA/POE

Backsheet: White

Frame: 30 mm Anodized Aluminium Alloy

J-Box: IP68 rated

Cables: Photovoltaic cable 4.0 mm² (Landscape: 1100/1100 mm, Portrait: 280/350 mm)

Connector: TS4 / MC4 EVO2 (special order)

Temperature & Maximum Ratings

NOCT: 43°C (±2°C)

Temp Coefficient of Pmax: -0.34%/K

Temp Coefficient of Voc: -0.25%/K

Temp Coefficient of Isc: 0.04%/K

Operating Temperature: -40 to +85°C

Max System Voltage: 1500 V DC (IEC)

Max Series Fuse Rating: 20 A

Warranty (Manufacturer)

15-year product workmanship warranty

25-year power warranty

2% first-year degradation

0.55% annual degradation thereafter

Suggested Use Cases

Residential rooftops (hybrid/grid-tied systems)

Commercial rooftops and warehouses

Ground-mount arrays for farms and small businesses