DC Power Systems

Electrical Specs

Maximum Power (P_ma

 68 W 

Maximum Power (P_max):

53 W

Voltage at Pmax (V_mp):

16.5 V

Voltage at Pmax (V_mp):

15.4 V

Current at Pmax (I_mp):

4.31 A

Current at Pmax (I_mp):

3.42 A

Short Circuit Current (I_sc):

5.1A

Short Circuit Current (I_sc):

4.1A

Open-Circuit Voltage (V_oc):

23.1 V

Open-Circuit Voltage (V_oc):

21.1 V

Maximum Series Fuse Rating:

8 A

NOCT:

46°C

Temperature Coefficient (TC) of I_sc:

0.001 / °K (0.10% / °C)

Temperature Coefficient (TC) of V_oc:

-0.0038 / °K (-0.38% / °C)

Temperature Coefficient (TC) of P_max:

0.0021 / °K (-0.21% / °C)

Temperature Coefficient (TC) of I_mp:

-0.001 / °K (-0.10% / °C)

Temperature Coefficient (TC) of V_mp:

-0.0031 / °K (-0.31% / °C)

y = yreference • [1 + TC • (T - Treference)]

Construction Characteristics

Dimensions (L x W x D):

Length: 112.1 x 15.5 x 0.2" (in) / 2849 x 394 x 4 mm
0.6" (16 mm) including potted terminal
housing assembly

Weight:

8.7 lbs / 3.9 kg

Output Cables:

4 mm² (12 AWG) cable with weatherproof DC rated
quick-connect terminals (e.g., Multi-Contact
(MC®) Connectors); 22" (560 mm) length

Cell Type:

11 triple junction amorphous silicon solar cells
356 mm x 239 mm (14" x 9.4") connected in series

Adhesive:

Ethylene propylene copolymer adhesive-sealant
with microbial inhibitor

Bypass Diodes:

Connected across every solar cell

Encapsulation:

Durable ETFE high light-transmissive polymer

1. During the first 8-10 weeks of operation, electrical output exceeds specified ratings. Power output may be higher by 15%, operating voltage may be higher by 11% and operating current may be higher by 4%.
2. Electrical specifications are based on measurements performed at standard test conditions of 1000 W/m² irradiance. Air Mass 1.5, and cell temperature of 25°C after stabilization.
3. Actual performance may vary up to 10% from rated power due to low temperature operation, spectral and other related effects. Maximum system open-circuit voltage not to exceed 600 VDC per UL.
4. Specifications subject to change without notice.