suntech
Suntech_Be_Unlimited_156px_05


STP255S-20/Wdb+

 STP255S-20/Wdb+

suntech_250-255m_156-60_wdb

STP255S-20/Wdb+

60 cells, mono (6″), Anti-dumping tariff free

NCD Anti-dumping tariff free module with high efficiency of up to 16% due to leading, cutting-edge technology

NCD Positive output tolerance of 0-5% ensures 100% performance from day 1

NCD Current sorting as an extra service provides additional output of up to 2%

ELECTRICAL SPECIFICATIONS
STC STP255S-20/Wdb STP250S-20/Wdb
Maximum Power at STC (Pmax) 255 W 250 W
Optimum Operating Voltage (Vmp) 30.8 V 30.7 V
Optimum Operating Current (Imp) 8.28 A 8.15 A
Open Circuit Voltage (Voc) 37.6 V 37.4 V
Short Circuit Current (Isc) 8.76 A 8.63 A
Module Efficiency 15.7% 15.4%
Operating Module Temperature -40 °C to +85 °C
Maximum System Voltage 1000 V DC (IEC)
Maximum Series Fuse Rating 20 A
Power Tolerance 0/+5 %
NOCT STP255S-20/Wdb STP250S-20/Wdb
Maximum Power at NOCT (Pmax) 188 W 184 W
Optimum Operating Voltage (Vmp) 28.2 V 28.1 V
Optimum Operating Current (Imp) 6.65 A 6.56 A
Open Circuit Voltage (Voc) 34.8 V 34.7 V
Short Circuit Current (Isc) 7.07 A 6.99 A
NOCT: Irradiance 800 W/m2, ambient temperature 20 °C, AM=1.5, wind speed 1 m/s; Best in Class AAA solar simulator (IEC 60904-9) used, power measurement uncertainty is within +/- 3%

MECHANICAL SPECIFICATIONS
Temperature
Nominal Operating Cell Temperature (NOCT) 45±2°C
Temperature Coefficient of Pmax -0.44 %/°C
Temperature Coefficient of Voc -0.34 %/°C
Temperature Coefficient of Isc 0.060 %/°C
Mechanical  
Solar Cell Monocrystalline silicon 156 × 156 mm (6 inches)
No. of Cells 60 (6 × 10)
Dimensions 1640 × 992 × 35mm (64.6 × 39.1 × 1.4 inches)
Weight 18.2 kgs (40.1 lbs.)
Front Glass 3.2 mm (0.13 inches) tempered glass
Frame Anodized aluminium alloy
Junction Box IP67 rated (3 bypass diodes)
Output Cables TUV (2Pfg1169:2007), UL 4703
  4.0 mm2 (0.006 inches2), symmetrical lengths (-) 1000mm (39.4 inches) and (+) 1000 mm (39.4 inches)
Connectors MC4 connectors
Packing  
Container 20’ GP 40’ GP
Pieces per pallet 30 30
Pallets per container 6 28
Pieces per container 180 840

Warranty based on nominal power
97% in the first year, thereafter, for years two (2) through twenty-five (25), 0.7% maximum decrease from MODULE’s nominal power output per year, ending with the 80.2% in the 25th year after the defined 25 WARRANTY STARTING DATE.

10-year material and workmanship warranty

STP255S-20/Wdb+