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5

 

Electrical Installation

 

 

 

 

 

Caution

 

• Avoid all electrical hazards when installing, wiring, 

operating and maintaining a panel. 

•   Do   not   use   panels   of   different   electrical   or 

 

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physical configurations in the same system. 

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• Match the polarities of cables and terminals when 

making  the  connections;  failure  to  do  so  may 
result in damage to the panel. 

•  When  reverse  currents  can  exceed  the  value 

marked  on  the  name  plate,  a  properly  rated  and 
certified  over-current  device  (fuse  or  circuit 
breaker)  must  be  connected  in  series  with  each 
panel or string of panels. 

•  The  rating  of  the  over-current  device  shall  not 

exceed  the  maximum  series  fuse  rating  marked 
on the name plate. 

•   The   panel   contains   factory   installed   bypass 

diodes located inside the junction box. 

• When installing the system, it is recommended to 

install the lightning rod to protect the system. 

• The junction box should not be opened. Opening 

the junction box may void the warranty. 

•   Panels   with   a   suspected   electrical   problem 

should    be    returned    to    LG    Electronics    for 
inspection  and  possible  repair  or  replacement  as 
per  the  warranty  conditions  provided  by  LG 
Electronics. 

 

Electrical Connections

 

•  Modules  may  be  connected  in  series  and/or 

parallel to achieve the desired electrical output as 
long as certain requirements are met. 

•  Please  use  only  the  same  type  of  modules  in  a 

combined source circuit. 

•  Do not disconnect the module under load. 

Shock  hazard  can  occur  near  the solar modules 
connection means. 

 

Series Connection

 

• The  solar  modules  may  be  wired  in  series  to 

produce the desired voltage output. 

• The  current  of  each  module  connected  in  series 

should be same. 

• The   maximum   number   of   series   connected 

modules  can  be  determined  by  basis  on  max. 
system  voltage,  the  125%  safety  factor,  and  the 
module  Voc  which  can  be  checked  in  “Product 
Specifications” in this document. 

Series connection for more voltage 

 

Parallel Connection

 

• The  solar  modules  may  be  combined  in  parallel 

to produce the desired current output. 

•  When modules are combined in parallel, the total 

current is  equal to the sum of currents from  each 
module. 

• The voltage of each module connected in parallel 

should be same. 

• When  connecting  plural  strings  of  modules  in 

parallel  every  series  string  or  solar  module  must 
be fused prior to combining with other strings. 

By  pass  diodes  are  factory  installed  in  the  solar 

modules. 

• Please  refer  to  the  applicable  regional  and  local 

codes  for  additional  fusing  requirements  and 
limitations  on  the  maximum  number  of  solar 
modules in parallel. 

• Maximum     parallel     strings     without     proper 

measures, e.g. fuse  20A and/or blocking diode : 

1 string 
Parallel  configuration  is  not  limited  if  proper 

measures  are  taken  to  block  the  reverse  current 
flow,  e.g.  fuses  for  the  protection  of  the  module 
and  cables  from  over-current  and/or  blocking 
diodes   for   prevention   of   unbalanced   string 
voltage. 

•  A  multiplying  factor   is   required  for   increased 

output  of  the  PV  modules.  Under  normal 
conditions,  a  PV  module  is  likely  to  experience 
conditions  that  produce  more  current  and/or 
voltage  than  reported at standard  test  conditions. 
Accordingly, the values of Isc and Voc marked on 
this PV module should be multiplied by a factor of 
125%  when  determining  component  voltage 
ratings,  conductor  ampacities,  fuse  sizes,  and 
size of controls to the PV output. 

• Depending  on  national  directives  additional 

safety factors  might  be  applicable  for  overcurrent 
protection. 

• 

Do not exceed 80%  

of maximum system voltage. 

• The maximum solar module configuration can be 

found in “Product Specifications”. 

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Parallel connection for more current 

Summary of Contents for LG300N1T-A5

Page 1: ...tallation manual PV Solar MODULE Please read this manual carefully before operating your set and retain it for future reference N TYPE MODEL LGXXXN1T A5 LGXXXN2T A5 P NO MFL69668602 Rev 00 www lg solar com ...

Page 2: ...ation 5 4 Mechanical Installation 6 5 Product Specifications 8 6 Disclaimer of Liability Disposal 10 7 Transporting and Storage 10 8 Appendix 11 Revisions Table Date Version Description of change Remark 2016 12 20 1 0 1st edition Publish Installation Manual 2017 08 14 2 0 Change M Load Spec ...

Page 3: ...Cable bending radius should be more than 4 times the cable diameter at least Please use proper equipment connector wire and buttress for system configuration of the module It may result in damage or failure of the product Do not perform installation in rainy heavily windy or snowy days It may result in safety accident Do not make holes in the frame or glass of the module It may decrease the streng...

Page 4: ...d in the carton until the time of installation Make sure flammable gases are not generated near the installation site Do not work alone Please work as part of a team of two or more people Wear a safety belt if working high above the ground Contact with electrically active parts of the panels such as terminals can result in burns sparks and lethal shock whether the panel is connected or disconnecte...

Page 5: ...ermined by basis on max system voltage the 125 safety factor and the module Voc which can be checked in Product Specifications in this document Series connection for more voltage Parallel Connection The solar modules may be combined in parallel to produce the desired current output When modules are combined in parallel the total current is equal to the sum of currents from each module The voltage ...

Page 6: ...ounding wire Flat washer Spring washer Nut Module Mounting The LG Electronics LGE Limited Warranty for solar modules is contingent upon modules being mounted in accordance with the requirements described in this section The solar modules are in Application Class A and have the Safety Class II Therefore they can be operated in systems with 120 V DC and higher General access is not restricted Site C...

Page 7: ...thods Torque 8 12Nm When installing modules in heavy snow areas special care should be taken to install the modules in a manner that provides sufficient design strength while meeting local code requirements Mounting by using frame bolts holes Secure the solar module to the structure using the factory mounting holes Four M8 stainless steel bolts four nuts four spring washers and eight flat washers ...

Page 8: ...G335N1T A5 Yes 335 0 3 41 2 10 28 35 1 9 55 19 20 1000 MC4 PV JM601A 1730 1024 40 18 2 LG340N1T A5 Yes 340 0 3 41 3 10 32 35 5 9 59 19 20 1000 MC4 PV JM601A 1730 1024 40 18 2 LG345N1T A5 Yes 345 0 3 41 4 10 36 35 9 9 62 19 20 1000 MC4 PV JM601A 1730 1024 40 18 2 LGXXXN2T A5 LG360N2T A5 Yes 360 0 3 48 6 9 91 38 8 9 29 16 20 1000 MC4 PV JM601A 2064 1024 40 22 0 LG365N2T A5 Yes 365 0 3 48 7 9 95 39 3...

Page 9: ...9 Product Specifications Dimensions of Modules 60Cell Module Unit mm 72Cell Module ...

Page 10: ... should be disposed of separately from the municipal waste stream 2 Old electrical products can contain hazardous substances so correct disposal of your old appliance will help prevent potential negative consequences for the environment and human health Your old appliance may contain reusable parts that could be used to repair other products and other valuable materials that can be recycled to con...

Page 11: ...0Pa Fig 5 Clamping Type Fig 6 Clamping Type C A B B A C A B 4 point installation is allowed in the following cases 1 Slope roof If module is installed parallel to the rooftop 2 Flat roof If installed with an additional stand such as wind A 200mm B 400mm Front 6000Pa Rear 5400Pa A 120mm 4point Front 1800Pa Rear 1800Pa C 120mm Front 3200Pa Rear 1800Pa A 120mm B 843 100mm 6point Front 6000Pa Rear 540...

Page 12: ...ig 6 Clamping Type C A B B A C A B 4 point installation is allowed in the following cases 1 Slope roof If module is installed parallel to the rooftop 2 Flat roof If installed with an additional stand such as wind A 250mm B 400mm Front 5400Pa Rear 4300Pa A 120mm 4point Front 1600Pa Rear 1600Pa C 120mm Front 3200Pa Rear 1600Pa A 120mm B 1012 100mm 6point Front 5400Pa Rear 4300Pa Note All mechanical ...

Page 13: ...rs are recommended per solar module Clamp system requirements The clamp should not be touched with the module s glass Use corrosion resistant material clamps and hardware If you use a special clamp it needs to test for compatibility by LGE Use appropriate bolted connections as per clamp manufacturer s instructions Follow the clamp manufacturer s recommended applied torque to fasten the clamps Widt...

Page 14: ...n 1 Module height 0 6 1 5m 2 Albedo 0 15 0 85 3 Tilt angle 30º south face latitude 36º 4 Array distance 4 5m Racking Scene 2 lows landscape installation 1 low portrait installation H H H is a minimum height from mounting ground to module LGE recommended a minimum height of 1m ...

Page 15: ...8 Yeoui daero Yeongdeungpo gu Seoul 150 721 Korea Contact solarinfo lge com http www lg solar com This document is subject to change without notice LG LG logo and Life s Good are trademarks of LG Electronics Inc worldwide Trademarks and intellectual properties of LG Electronics Inc are protected by international copyright laws Document II A5 T IEC V1 EN 201612 ...

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