Tongwei TWMNH-66HD640

640 WTW Solar Gen 2Dual GlassHalf-CellTOPConBifacial 80%132 cells

The Tongwei TWMNH-66HD640 is a 640 W solar panel featuring TOPCon cell technology. Below are the verified electrical and thermal specifications extracted from the manufacturer datasheet.

Technical Specifications

Electrical Characteristics (STC)

Peak Power (Pmax)640 W

Open-Circuit Voltage (Voc)49.75 V

Max Power Voltage (Vmpp)41.38 V

Short-Circuit Current (Isc)16.33 A

Max Power Current (Impp)15.47 A

Number of Cells132

Temperature & Physical

Temp. Coefficient Voc-0.24 %/°C

Temp. Coefficient Isc0.046 %/°C

Temp. Coefficient Pmax-0.28 %/°C

Max System Voltage1500 V

Nominal Cell Temperature (NOCT)45 °C

Datasheet

Download PDF4.2 MB

Other Models in This Series

Model	Power	Voc	Isc
	635 W	49.6 V	16.26 A
TWMNH-66HD640Current	640 W	49.75 V