Today, energy infrastructure is evolving into adaptive, intelligent networks. Powering these networks requires unique smart energy products that can meet the industry’s rapidly evolving requirements.
Celestica enables intelligent, reliable and flexible smart energy product solutions that drive complex power architectures, helping you keep pace with industry demand, meet quality and reliability requirements and speed time-to-market.
Celestica’s Module Level Power Electronics (MLPE) Smart Panel combines high performance solar modules with an integrated Solantro chipset-based
DC Optimizer within the standard form factor junction box (jbox) - providing increased power controls and intelligent disconnect upon detection of current loss. This addresses the Rapid Shutdown requirements of NEC2014 and other national norms and standards.
The evaluation unit combines the required sensing and MOSFET drive circuitry for module optimization, intelligent disconnect operation and cool sub-string bypass without the need for additional external communications equipment or minimum string length restrictions. It supports a wide range of PV-panel power specifications.
Increased energy harvest over standard string-inverter
MPPT based systems
Compensates losses due to mismatch, shading, soiling, temperature gradients and aging
Eliminates high PV string voltages during installation, string disconnect in case of maintenance/emergency (fire) or islanding event
No external communications equipment needed
Higher reliability, lower temperature and lower loss than with traditional bypass diodes
Increased safety for installers, fire-fighters and repair-persons due to elimination of voltage on PV-string when AC or DC is disconnected www.celestica.com

• Intelligent Solar-PV
Disconnect Switch
• Distributed, Intelligent PV
System Optimization
• Replacement of bypass diodes with low-loss
MOSFETs
Figure 1. DC-POD Junction Box
Reference Platform
Figure 2. DC-POD Power Manger
Functional Diagram
• Highly integrated design utilizing Solantro chipset (APM + MAXC)
• Extremely efficient Max Power Point Tracking (MPPT) software controlled algorithm
• Cool bypass for string and sub-string isolation, eliminating diode losses
• Disconnect smart shutdown
• System installation with no additional connections or cabling
Figure 2 shows a high-level functional diagram of the circuitry within the DC-POD. It is based on the Solantro SA1001 – APM and SA3101 –
MAXC ICs and provides all of the sense points and MOSFET drivers required for the critical elements within the design. The power MOSFETs
Q1 and Q2 provide dual functionality depending on the DC-POD state of operation. In the ”Connected” state when power-conversion is being performed and the MPPT control loop is operating, both transistors function together as the high and low-side switches of a synchronous buck converter. In non-operational states transistor Q1 opens, disconnecting the PV-module from the string, and transistor Q2 closes, bypassing the PV-module with a very low voltage drop across this low
R dson
transistor.
Figure 2 also shows the substring connections to the PV-module. Across each of these substrings, a parallel MOSFET (STR1, STR2 and STR3) is connected to provide substring bypass functionality in the event that substring is shaded and not able to provide enough power to operate.
Replacement of the bypass diodes with low-loss MOSFETs dramatically reduces the power dissipation when the substrings are bypassed. Heat generation by traditional axial bypass diodes operating in bypass mode is one of the more common module failure points.
To maximise power harvest, and provide the highest degree of safety, every PV-module within the PV-array branch string should be equipped with a DC-POD-enabled PV Junction Box. Note, however, that the system will operate correctly with co-mingled DC-POD equipped and non-DC-POD equipped PV-modules within the same string. In this case, the energy harvest will be reduced, and these non-POD equipped PVmodules will continue to generate potentially dangerous voltages even when all DC-PODs have disconnected their PV-modules for safety.
Parameter
PV Module Power Range
MPPT Operating Range
Maximum Output Current
Efficiency
Specification – DC-POD
50W to 350W
10V to 60V
10A
>99%

Figure 3. Module Diagram
TE Solarlok MC4+ style
C72NxxxV-CT† 72-Cell Mono-Crystalline Module Series
Module Dimensions (mm) 1957 x 992 x 50
Number of Cells
Cell Type and Size
Module Weight (kg)
72 pieces (6 x 12) connected in series
3BB Mono-crystalline (156mm x 156mm)
23.5 and 27.0 options available (glass dependent)
600V or 1000V UL/ULc options, and 1000V IEC, CAN/CSA Max System Voltage
Temperature Coefficient of Voltage ( β )
Temperature Coefficient of Current ( α )
Temperature Coefficient of Power ( γ )
Normal Operating Cell Temperature (NOCT)
-0.35±0.01 % / oC
+0.05±0.02 % / oC
-0.48±0.02 % / oC
47°C ±2°
Fuse Current
Efficiency Reduction at 200W/m², 25°C
Limiting Reverse Current (Ir)
Mechanical Load
Hailstone Impact Resistance
15A
<5%
8.7A
Junction Box/Cable
Basic Structure
Front
Back
Frame
±2400Pa, +5400 Pa
25mm @ 80 km/h
IP 65 and IP67 rated; 4.0mm² Universal PV Wire, 1000mm or 1200mm min. cable with TE
SOLARLOK® or MC4+ style connectors
Tempered Solar Patterned Glass; 3.2 and 4.0mm options; with/without AR coating
Composite Film
Anodized Aluminium Alloy
Refer to module installation instructions for maximum loading conditions.
† C = colour code – W (default): white backsheet and silver frame, B: black backsheet and frame, M: white backsheet and black frame
T = connector type – M (default): MC4 style (Rated 600V UL / 1000V IEC-CAN/CSA); S: TE Solarlok, (Rated 600V UL / 1000V IEC-CAN/
CSA); T: MC4 style (Rated 1000V UL and IEC )
IV parameters are rated at Standard Test Conditions (Irradiance of 1000 W/m², AM 1.5G, cell temperature 25²C). NOCT is measured at
800 W/m², 20 deg. C ambient, and 1 m/s windspeed. Specifications are subject to change without notice. Celestica reserves right of final interpretation and revision on this datasheet.
B Grade modules are available on request. www.celestica.com

Characteristic
Units
C72N290V
C72N295V
C72N300V
C72N305V
C72N310V
C72N315V
C72N320V
C72N325V
C72N330V
Nominal
Power
Watts
290
295
300
305
310
315
320
325
330
Voltage
Voc
Volts
44.4
44.5
44.6
44.7
44.8
44.9
44.9
45.0
45.1
Current
Isc
Amps
9.0
9.0
9.1
9.1
9.1
9.2
9.2
9.3
9.3
Voltage
Vmp
Volts
35.3
35.6
35.8
36.1
36.4
36.6
36.9
37.2
37.4
Current
Imp
Amps
8.3
8.4
8.4
8.5
8.6
8.7
8.7
8.8
8.8
IEC 61215, IEC 61730, UL1703
CAN/CSA-C61215-08
Application Class A
ULC/ORD-C1703-01 CEC
CAN /CSA-C22.2 No.61730
Safety Class II
12
Cells temp. = 25°
10
Incident Irrad. = 1000 W/m 2
8
Incident Irrad. = 800 W/m 2
321.4 W
255.6 W
6
Incident Irrad. = 600 W/m 2
189.7 W
4 Incident Irrad. = 400 W/m 2
124.2 W
2 Incident Irrad. = 200 W/m 2 59.9 W
0
10 20 30 40 50
Voltage (V)
The items described in this publication have not been released to commercial production. They are supplied ``AS IS
WITH ALL DEFECTS``. Not all parameters have been tested. The information is being provided on an advanced basis, and Celestica or Solantro may not release a corresponding product to sale. Celestica or Solantro assumes no liability for errors, or for liability arising from the application or use of any such information or items
© Copyright Celestica Inc. 2014 All rights reserved. ™ CELESTICA,
FIREBALL & Design and CELESTICA & FIREBALL Design are existing, pending or registered trademarks of Celestica International Inc., used under license. All trademarks and registered trademarks are the property of their respective owners.
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