Data Sheet

High-efficiency photovoltaic module using silicon nitride multicrystalline silicon cells.
Performance
Rated power (P
max
) 20W
Power tolerance ± 10%
Nominal voltage 12V
Limited Warranty
1
12 years
Configuration
M Multimount frame with lo-pro J-Box and output cable
J Clear universal frame and standard J-Box
Electrical Characteristics
2
SX320
Maximum power (P
max
)
3
20W
Voltage at Pmax (V
mp
) 16.8V
Current at Pmax (I
mp
) 1.19A
Warranted minimum P
max
18W
Short-circuit current (I
sc
) 1.29A
Open-circuit voltage (V
oc
) 21.0V
Temperature coefficient of I
sc
(0.065±0.015)%/ °C
Temperature coefficient of V
oc
-(80±10)mV/°C
Temperature coefficient of power -(0.5±0.05)%/ °C
NOCT (Air 20°C; Sun 0.8kW/m
2
;
wind 1m/s)
47±2°C
Maximum series fuse rating 3A
Maximum system voltage 50V (US NEC rating)
50V (IEC 61215 rating)
Mechanical Characteristics
Dimensions M Length: 421mm (16.6”) Width: 501mm (19.7”) Depth: 23mm (0.9”)
J Length: 425mm (16.7”) Width: 502mm (19.7”) Depth: 50mm (1.97”)
Weight M 2.5 kg (5.5 pounds)
J 3.0 kg (6.6 pounds)
Solar Cells 36 cells (38mm x 114mm) in a 4x9 matrix connected in series
Junction Box J J-Version junction box with 4-terminal connection block; IP 65, accepts PG 13.5,
M20, ½ inch conduit, or cable fittings accepting 6-12mm diameter cable.
Terminals accept 2.5 to 10mm
2
(8 to 14 AWG) wire
Output Cables M AWG# 18 (0.75mm
2
) 2 core ITC/PLTC; length - 4572mm
Construction Front: High-transmission 3mm (1/8
th
inch) tempered glass; Back: Polyester; Encapsulant: EVA
Frame M Clear anodized aluminum alloy type 6063T6 Multimount frame; Color: silver
J Clear anodized aluminum alloy type 6063T6 Universal frame; Color: silver
SX 320
20 Watt Photovoltaic Module
1. Module Warranty: 12-year limited warranty of 90% power output; 2-year limited warranty of materials and workmanship.
See your local representative for full terms of these warranties.
2. These data represent the performance of typical BP modules, and are based on measurements made in accordance with ASTM E1036
corrected to SRC (STC.)
3. During the stabilization process that occurs during the first few months of deployment, module power may decrease by approx. 1% from
typical P
max
.
6802.0043 SX320M/J_B 11/07
BP Solar 2007