LG LG280N1C-G4 User manual

Please read this manual carefully before operating
your set and retain it for future reference.
N-TYPE MODELS
LGXXXN1C(W,K)-G4
LGXXXN2C(W,K)-G4
P-TYPE MODELS
LGXXXS1C(W)-G4
LGXXXS2C(W)-G4
LGXXXS1C(W)-L4
MFL69534401 (Rev 00) www.lgsolarusa.com
Installation manual
PV Solar
MODULE

TABLE OF CONTENTS
SAFETY ..................................................................03
BEFORE & AFTER INSTALLATION ......................05
Before Installation................................................................................05
After Installation...................................................................................05
ELECTRICAL INSTALLATION...............................06
Danger.................................................................................................06
Electrical Connections.........................................................................06
Diodes .................................................................................................06
Series Connection ...............................................................................06
Parallel Connection .............................................................................07
General Wiring.....................................................................................07
Earth Grounding ..................................................................................07
MECHANICAL INSTALLATION..............................08
Module Mounting.................................................................................08
Site Consideration ...............................................................................08
Mounting Methods...............................................................................08
DISCLAIMER OF LIABILITY / DISPOSAL.............10
TRANSPORTING AND STORAGE ........................10
REVISIONS TABLE ................................................10
PRODUCT SPECIFICATIONS................................11
Electrical & Mechanical Properties...................................................... 11
Dimensions of Modules .......................................................................13
APPENDIX ..............................................................14

03
SAFETY
The instructions related to safety and use indicated
in the this installation manual are intended for the
prevention of unexpected danger, damage, or failure.
DANGER WARNING CAUTION
Non-compliance with the instructions may cause product
damage, product failure, and/or serious bodily injury or
death.
DANGER
Do not contact electrically active
parts of the panel, such as
terminals, without appropriate
safety gear. Contact may result in
lethal spark or electric shock.
Do not use or install if the module
is broken or torn. Failure to
comply may result in electric
shock.
WARNING
Perform all work in dry conditions
and use only dry tools. Do
not handle wet panels without
appropriate protection equipment.
Failure to comply may result in
accident or death.
Damaged modules must be
treated with safety protection
equipment. Failure to comply
may result in serious bodily injury
or death.
Do not approach the damaged
or broken module unless you are
an authorized or qualied expert.
Failure to comply may result in
serious bodily injury or death.
No electrical parts like cables are
located after installation between
laminate and mounting structure.
Do Not reconnect or repair
junction box cable. It may occur
spark or electric shock.
Do not bending junction box's
cable. While under stress, it may
occur module damage. Cable
bending radius should be more
than 4 times the cable diameter,
at least.
CAUTION
Use proper equipment,
connectors, wires and buttresses
for the installation of the module.
Failure to comply may result in
product damage, product failure
or bodily injury.
Installation during rain, heavy
wind or snowy day may result in
bodily injury or death.
Holes in the frame or glass of
the module may decrease the
strength of the frame or break the
glass.

04
Do not touch the glass surface or
frame of the solar module after
installation of the module. It may
result in injury or death.
Heavy objects must be kept off of
the solar module.
Do not stand on or step on the
module. Do not drop the module.
Failure to comply may result in
product damage, product failure
or bodily injury.
Do not scratch the coating
surface of the frame.
Scratches may decrease the total
solar output due to corrosion of
the frame.
Do not articially concentrate
sunlight on the solar module
surface. Failure to comply may
result in product damage or
failure.
Do not apply a shock to the
junction box of the module or
pull the cable. Do not remove the
labels attached to the module.
Failure to comply may result in
damage of the product.
If the installing modules on curved surface, (e. g. arch
type), as shown in the below picture, do not forcefully
modify the module in the installation when connecting
it with the structure. Only install the module in the place
where the structure for the panels has been properly
set up. An improper structure may cause deformation
of the panels. Panels may also be damaged by
unapproved installation methods such as the use of a
crane.
Module
Installing structure
(bent type)
Module
Installing structure
(Stralght type)
Product
Deformation
Occurrence
of space

05
BEFORE & AFTER INSTALLATION
Before Installation
Please carefully read this manual before installation.
•Solar module installation and maintenance must be
performed by qualied and authorized installer.
•All installation instructions should be read and
understood before performing any installation.
•Do not disassemble the solar module.
•After installation or repair, check that the solar module
are operating properly.
•In the event that the currently used solar module or
parts have been replaced the newly replaced module
and parts must have the same model name and parts
as the previously installed solar module.
•Secure all necessary permits and licenses to install
the solar modules.
•Panels are not intended for use indoors or on moving
vehicles of any kind.
•Industry standard rated specications are made at
conditions of 1000W/m
2
irradiance and 25°C (77°F)
solar cell temperature. Colder temperatures may
substantially increase voltage and power.
•Keep the solar module and system away from children
at all times.
•Keep the module packed in the carton until the time of
installation.
•Keep ammable gasses away from the installation
site.
•Do not work alone. Please work as part of a team of
two or more people.
•Safety harness use is strongly recommended for
installation.
•Partial shadowing may substantially reduce panel and
system output.
•Care must be taken to avoid low tilt angles which may
cause dirt to buildup on the glass against the frame
edge.
•Dirt build-up on the surface of the panel may
cause active solar cells to be shaded and electrical
performance to be impaired.
After Installation
•Plug in the connector tightly and ensure that the wiring
properly works.
•Conduct periodic inspection of the panels for damage
to front glass, back sheet, frame, junction box, or
external electrical connections.
•Check electrical connections for loose connections
and corrosion.
•Water, ethanol or a conventional glass cleanser with
a micro-ber cloth can be used for regular washing or
rinsing of the front glass to remove dust, dirt or other
deposits.
•Aggressive and abrasive cleansers or chemicals such
as alkali chemicals including ammonia based solution
should not be used on cleaning the module.
•Deposits of foreign material on the frame surface can
be cleaned by using a wet sponge or cloth and dried
in air or by using a clean chamois.
•Perform the wiring work by connecting the connector
and wires to the stand away from the roof or ground.

06
Danger
•Avoid all electrical hazards when installing, wiring,
operating and maintaining all panels.
•Do not connect panels that have different electrical
properties or physical congurations in the same
system.
•Match the polarities of cables and terminals when
making the connections; failure to do so may result in
damage to the panel.
•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 a lightning rod to protect the system.
•The induced overvoltage by lightning can cause the
system damage, you should design conductor loop
connection as minimum as possible.
•The junction box should not be opened. Opening the
junction box will 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
•Shock hazard may occur near the solar modules
electrical connections.
•Modules may be connected in series and/or parallel
to achieve the desired electrical output as long as it
is within the guidelines on the product specication
sheet.
•Please use only the same type of modules in a
combined source circuit.
•Do not disconnect the module under when it is
operating. Shock hazard may occur near the solar
modules connection means.
•When the module installing in series or in parallel (e.g.
using for extension cables), the connector of each
module should be the same products.
ELECTRICAL INSTALLATION
Diodes
•All LG modules are equipped with factory installed
bypass diodes. The factory-installed diodes provide
proper circuit protection for the systems within the
specied system voltage.
Diode specification and configuration
-+
1
D1 D2 D3
234
IF(AV) 25A
VF(max) 0.6V
VRRM 50V
Tj(max) 200°C
RTH 2.0°C/W
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 the same.
•The maximum PV system voltage for that circuit shall
be calculated as the sum of the rated open-circuit
voltage of the series-connected PV modules corrected
for the lowest expected ambient temperature. For the
LG Mono crystalline modules, the rated open-circuit
voltage shall be multiplied by the correction factor
provided in NEC Table 690.7. The maximum current
of Photovoltaic Source Circuit Currents shall be the
rated short-circuit current of the series-connected
module multiplied by 125 percent in accordance with
NEC article 690.8.

07
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 the same.
•When connecting plural strings of modules in parallel
every series string or solar module must be fused prior
to combining with other strings.
•Abide with all applicable federal, state, and local codes
for additional fusing requirements and limitations on
the maximum number of solar modules in parallel.
•Maximum series fuse rating is refer to “Product
Specications; page 9~10”.
•Parallel conguration is not limited if proper measures
are taken to block the reverse current ow, e.g. fuses
for the protection of the module and cables from over-
current 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. The requirements of the National
Electrical Code (NEC) in Article 690 shall be followed
to address these increased outputs. In installations
not under the requirements of the NEC, 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 over current protection.
General Wiring
•LG Electronics recommends that all wiring be double
insulated with a minimum rating of 90°C (194°F).
•All wiring should use a exible copper (Cu) conductor.
•The minimum size should be determined by the
applicable codes.
•LG Electronics recommends a size no smaller than
12AWG.
Earth Grounding
•All work must be conducted in conformance with all
Federal, State, and local codes and standards.
•Grounding works should be performed by an
authorized installer for the safety and maintenance of
the system in accordance with all national, state and
local electrical codes and regulations and standards.
•Specic information on the solar module dimensions
and location of grounding holes is provided in “Product
Specications”.
•One M4 stainless steel bolt, one nut, one spring
washer, two at washers, one cup washer, one star
washer and 12 AWG Cu wires are recommended per
mounting hole.
•Where common grounding hardware (nut, bolts,
washers) is used to attach a listed grounding device,
the attachment must be made in conformance with the
grounding device manufacturer’s instructions.
•All hardware should be consist of corrosion resistant
material such as stainless steel.
•There is an earth hole on the edge of the module
frame. Using this hole, an earth conductor and the
solar module frame may be recommended to be
connected and earthed as the below drawing.
•All screws and nuts shall be tightened to a torque of
4~5 Nm.
•A module with exposed conductive parts is
considered to be in compliance with UL 1703 only
when is electrically grounded in accordance with the
instructions presented below and the requirements of
the National Electrical Code.
The installation instructions shall include:
1. Details for wiring shall comply the NEC Article 690.
2. Details for the grounding method of the frame of
arrays shall comply with the NEC Article 250.
3. CNL model instruction manuals shall also include
a statement that installation shall be in accordance
with CSA C22.1, Safety Standard for Electrical
Installations, Canadian Electrical Code, Part 1.
Module
frame
Bolt
Flat washer
Star washer
Cup
washer
Flat washer
Spring
washer
Nut
Grounding
wire

08
MECHANICAL INSTALLATION
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.
•Any module without a frame (laminate) shall not be
considered to comply with the requirements of UL
1703 unless the module with hardware that has been
tested and evaluated with the module under this
standard or by a  eld inspection certifying that the
installed module complies with the requirements of UL
1703.
•We recommend to use mounting device(bolt, nut,
washer) made by corrosion resistant material like
stainless steel.
Site Consideration
LGE solar modules should be mounted in a location that
meets the following requirements.
Operating Temperature
•Maximum Operating Temperature: +90°C (194°F)
•Minimum Operating Temperature: -40°C (-40°F)
Design Strength(Basic Load)
•60Cell Modules : 75lb/ft
2
•72Cell Modules : 60lb/ft
2
•Detail of mounting distance is below.
①
②
①
②
①
②
①
②
60Cell
①
: 170mm(6.7in)
②
: 270mm (10.6in)
72Cell
①
: 270mm(10.6in)
②
: 370mm (14.6in)
Excluded Operating Environments
•The solar modules from LG Electronics can not be
operated in a location where they could come in direct
contact with salt water or ammonia.
Mounting Methods
General Information
•Select the appropriate orientation to maximize sunlight
exposure.
•Module should not be mounted or stored in a way that
the front/top glass faces downward in order to prevent
water from entering the junction box, which could
cause a safety hazard.
•Clearance between the solar module frames and
structures such as roofs or ground is required to
prevent wiring damage and to allow air to circulate
behind the solar module. The recommended standoff
height is a minimum of 100mm.
•When installed on a roof, the solar module must be
mounted over a  re-resistant roof covering rated for
the application. The  re resistance of the solar module
is class C after ANSI/UL790 Edition 2004.
•A slope less than 5in/ft is required to maintain a  re
class rating.
•The solar module is only ETL listed for use when its
factory frame is fully intact.
•Removal or alteration must be done by an authorized
and quali ed individual.
•Creating additional mounting holes may damage the
solar module and reduce the strength of the frame.
•We recommend a 6mm gap between module frames
to avoid tension from thermal expansion.
•The  re rating of this module is valid only when
mounted in the manner speci ed in the mechanical
mounting instructions.
•The module is considered to be in compliance with
UL1703 only when the module in mounted in the
manner speci ed by the mounting instructions below.
•The solar module may be mounted by using the
following methods: (*Torque:8~12Nm )
•LG modules (Fire performance : Type 2) shall be
mounted with racking and mounting products certi ed
and listed for system  re class rating in accordance
with UL1703 edition 2014 and UL2703 edition 2014.
•It is recommended to check with local authorities
for  re safety guidelines and requirements for any
building or structure on to which the panels will be
installed.

09
•When installing modules in heavy snow areas,
it is recommended to be taken an appropriate
countermeasure to prevent possible damages to the
lower side frame by slipping snow.
We recommend to use corrosion resistant material
according to standard UL 1703 or UL2703 for these
supporting part. (A snow guard should be installed in
accordance with the manufacturer’s instructions.)
Solar module
Roof
Supporting part
Mounting by using frame bolts holes
•Secure the solar module to the structure by using the
factory mounting holes.
•Four M8(5/16inch) stainless steel bolts, four nuts,
four spring washers, and eight at washers are
recommended per solar module.
•The module may be fastened to a support by using
both the outer and inner bolt holes of the frame.
•Each module should be securely fastened at a
minimum 4 points on two opposite sides.
•Specic information on the solar module dimensions
and location of mounting holes is provided in ‘Product
Specications’.
•Tighten the bolt securely by using the combination
shown above. Place the spring washer between the
Flat washer and Nut.
Bolt
Flat washer
Flat washer
Nut
Support
Module frame
Spring washer
Mounting by using clamps
•The module may be fastened to a support by using
clamps on both the long edge and the short edge of
the modules.
•Specic information on location of clamping is
provided in ‘Mechanical Installation Scene’. (Refer to
Appendix.)
→ If you use a special clamp, it needs to test for
compatibility by LGE.
•If the installation is likely to be affected by
heavy(extreme) snow, further suitable panel support is
recommended on the lower row of panels.

Disclaimer of Liability
•By beginning to installation process, the installer has to read and completely understand this Installation Manual.
•If installer had any questions regarding this installation manual, the installer would have contacted LG with any
questions or concerns.
•By installing an LG Solar module, I discharge, and covenant not to sue LG, its afliated companies, successors,
or assigns, its administrators, directors, agents, ofcers, volunteer and employees, other participants in any activity
connected to installation, operation, or service of LG Solar Modules, and if applicable, from all liabilities, claims,
demands, losses, or damages on my account caused or alleged to be caused in whole or in part by the negligence
of the LG its afliated companies, successors, or assigns, its administrators, directors, agents, ofcers, volunteer
and employees.
Disposal
•Please contact us, if you have any queries related to the disposal or recycling of solar modules from LG Electronics.
10
DISCLAIMER OF LIABILITY / DISPOSAL
•Do not loosen the banding, when the module is transported by truck, ship and etc.
In case of loose banding, the module will be shaken, which may cause damage.
•Do not stack on more than one pallet. Maximum height is two pallets. Severe stacking can cause stress to the
module and may cause product damage.
TRANSPORTING AND STORAGE
Date Version Description of change Remark
2016.05.01 1.0 (1st edition) Universal Installation Manual
REVISIONS TABLE

11
PRODUCT SPECIFICATIONS
N-TYPE
Electrical and Mechanical Properties(Rated electrical characteristics are -5 to +5 percent)
Standard Test Condition(STC) : Irradiation 1000W/m
2
, Cell temp. 25℃, 1.5AM
Electrical Properties Mechanical Properties
Module
Series Model Name Pmax
at STC
Power
Tolerance
Voc at
STC
Isc at
STC
Vmpp
at STC
Impp at
STC
Max.
Series
Fuse
Rating
Max.
System
Voltage
Connector Length Width Height Weight
W % V A V A A V mm mm mm kg
LGXXXN1C(W)-G4
LG280N1C(W)-G4 280 3% 38.6 9.78 30.7 9.13 20 1000 MC4 1640 1000 40 17.0
LG285N1C(W)-G4 285 3% 38.9 9.81 31.1 9.17 20 1000 MC4 1640 1000 40 17.0
LG290N1C(W)-G4 290 3% 39.2 9.84 31.4 9.24 20 1000 MC4 1640 1000 40 17.0
LG295N1C(W)-G4 295 3% 39.5 9.87 31.8 9.28 20 1000 MC4 1640 1000 40 17.0
LG300N1C(W)-G4 300 3% 39.8 9.90 32.2 9.34 20 1000 MC4 1640 1000 40 17.0
LG305N1C(W)-G4 305 3% 40.1 9.93 32.5 9.39 20 1000 MC4 1640 1000 40 17.0
LG310N1C(W)-G4 310 3% 40.4 9.96 32.8 9.45 20 1000 MC4 1640 1000 40 17.0
LG315N1C(W)-G4 315 3% 40.6 10.02 33.2 9.50 20 1000 MC4 1640 1000 40 17.0
LG320N1C(W)-G4 320 3% 40.9 10.05 33.6 9.53 20 1000 MC4 1640 1000 40 17.0
LG325N1C(W)-G4 325 3% 41.2 10.08 34.0 9.57 20 1000 MC4 1640 1000 40 17.0
LG330N1C(W)-G4 330 3% 41.5 10.11 34.3 9.63 20 1000 MC4 1640 1000 40 17.0
LG335N1C(W)-G4 335 3% 41.8 10.14 34.6 9.69 20 1000 MC4 1640 1000 40 17.0
LG340N1C(W)-G4 340 3% 42.1 10.17 34.9 9.75 20 1000 MC4 1640 1000 40 17.0
LGXXXN1K-G4
LG280N1K-G4 280 3% 38.1 9.53 31.0 9.04 20 10000& 1640 1000 40 17.0
LG285N1K-G4 285 3% 38.5 9.57 31.3 9.11 20 1000 MC4 1640 1000 40 17.0
LG290N1K-G4 290 3% 38.9 9.61 31.7 9.16 20 1000 MC4 1640 1000 40 17.0
LG295N1K-G4 295 3% 39.3 9.66 32.1 9.21 20 1000 MC4 1640 1000 40 17.0
LG300N1K-G4 300 3% 39.7 9.70 32.5 9.26 20 1000 MC4 1640 1000 40 17.0
LG305N1K-G4 305 3% 40.1 9.74 32.9 9.28 20 1000 MC4 1640 1000 40 17.0
LG310N1K-G4 310 3% 40.5 9.78 33.3 9.31 20 1000 MC4 1640 1000 40 17.0
LG315N1K-G4 315 3% 40.6 9.82 33.7 9.35 20 1000 MC4 1640 1000 40 17.0
LG320N1K-G4 320 3% 40.9 9.86 34.1 9.39 20 1000 MC4 1640 1000 40 17.0
LG325N1K-G4 325 3% 41.2 9.90 34.5 9.43 20 1000 MC4 1640 1000 40 17.0
LG330N1K-G4 330 3% 41.6 9.94 34.9 9.47 20 1000 MC4 1640 1000 40 17.0
LGXXXN2C(W)-G4
LG360N2C(W)-G4 360 3% 47.4 9.86 38.6 9.33 20 1000 MC4 1960 1000 46 20.3
LG365N2C(W)-G4 365 3% 47.7 9.92 38.9 9.39 20 1000 MC4 1960 1000 46 20.3
LG370N2C(W)-G4 370 3% 48.0 9.98 39.2 9.44 20 1000 MC4 1960 1000 46 20.3
LG375N2C(W)-G4 375 3% 48.3 10.04 39.5 9.50 20 1000 MC4 1960 1000 46 20.3
LG380N2C(W)-G4 380 3% 48.6 10.10 39.8 9.55 20 1000 MC4 1960 1000 46 20.3
LG385N2C(W)-G4 385 3% 48.9 10.16 40.1 9.61 20 1000 MC4 1960 1000 46 20.3
LG390N2C(W)-G4 390 3% 49.2 10.22 40.4 9.67 20 1000 MC4 1960 1000 46 20.3
LG395N2C(W)-G4 395 3% 49.5 10.27 40.7 9.73 20 1000 MC4 1960 1000 46 20.3
LGXXXN2K-G4
LG360N2K-G4 360 3% 47.9 9.69 39.1 9.21 20 1000 MC4 1960 1000 46 20.3
LG365N2K-G4 365 3% 48.2 9.76 39.4 9.27 20 1000 MC4 1960 1000 46 20.3
LG370N2K-G4 370 3% 48.5 9.82 39.7 9.33 20 1000 MC4 1960 1000 46 20.3
LG375N2K-G4 375 3% 48.8 9.88 40.0 9.38 20 1000 MC4 1960 1000 46 20.3
LG380N2K-G4 380 3% 49.1 9.94 40.3 9.43 20 1000 MC4 1960 1000 46 20.3
LG385N2K-G4 385 3% 49.4 10.00 40.6 9.49 20 1000 MC4 1960 1000 46 20.3
Note) MC4 formal name : PV-KST4 / 6II-UR, PV-KBT4 / 6II-UR
→ Plus (+) Connector : Female MC4 coupler (PV-KBT4/6II-UR)
→ Negative (-) Connector : Male MC4 coupler (PV-KST4/6II-UR)
The typical change in module efciency at 200W/m
2
in relation to 1000W/m
2
is -2.0%(‘K Model’ is -3.0%)
A safety locking clip (MC PV-SSH4) may be required per article 690 of NEC 2008

12
P-TYPE
Electrical and Mechanical Properties(Rated electrical characteristics are -5 to +5 percent)
Standard Test Condition(STC) : Irradiation 1000W/m
2
, Cell temp. 25℃, 1.5AM
Electrical Properties Mechanical Properties
Module
Series Model Name Pmax
at STC
Power
Tolerance
Voc at
STC
Isc at
STC
Vmpp
at STC
Impp at
STC
Max.
Series
Fuse
Rating
Max.
System
Voltage
Connector Length Width Height Weight
W % V A V A A V mm mm mm kg
LGXXXS1C(W)-G4
LG250S1C(W)-G4 250 3% 37.9 8.92 30.7 8.16 15 1000 MC4 1640 1000 40 17.0
LG255S1C(W)-G4 255 3% 38.0 8.98 30.9 8.27 15 1000 MC4 1640 1000 40 17.0
LG260S1C(W)-G4 260 3% 38.1 9.05 31.1 8.38 15 1000 MC4 1640 1000 40 17.0
LG265S1C(W)-G4 265 3% 38.3 9.11 31.3 8.49 15 1000 MC4 1640 1000 40 17.0
LG270S1C(W)-G4 270 3% 38.5 9.17 31.5 8.58 15 1000 MC4 1640 1000 40 17.0
LG275S1C(W)-G4 275 3% 38.7 9.26 31.7 8.68 15 1000 MC4 1640 1000 40 17.0
LG280S1C(W)-G4 280 3% 38.8 9.33 31.9 8.78 15 1000 MC4 1640 1000 40 17.0
LG285S1C(W)-G4 285 3% 38.9 9.38 32.1 8.88 15 1000 MC4 1640 1000 40 17.0
LG290S1C(W)-G4 290 3% 39.0 9.43 32.3 8.98 15 1000 MC4 1640 1000 40 17.0
LG295S1C(W)-G4 295 3% 39.1 9.48 32.5 9.08 15 1000 MC4 1640 1000 40 17.0
LG300S1C(W)-G4 300 3% 39.2 9.53 32.7 9.18 15 1000 MC4 1640 1000 40 17.0
LGXXXS1C(W)-L4
LG255S1C(W)-L4 255 3% 37.6 8.84 30.4 8.40 15 1000 MC4 1640 1000 40 17.0
LG260S1C(W)-L4 260 3% 37.8 8.95 30.7 8.50 15 1000 MC4 1640 1000 40 17.0
LG265S1C(W)-L4 265 3% 38.0 9.06 30.9 8.60 15 1000 MC4 1640 1000 40 17.0
LG270S1C(W)-L4 270 3% 38.2 9.17 31.1 8.70 15 1000 MC4 1640 1000 40 17.0
LG275S1C(W)-L4 275 3% 38.4 9.28 31.3 8.80 15 1000 MC4 1640 1000 40 17.0
LG280S1C(W)-L4 280 3% 38.6 9.39 31.5 8.90 15 1000 MC4 1640 1000 40 17.0
LG285S1C(W)-L4 285 3% 38.8 9.50 31.7 9.00 15 1000 MC4 1640 1000 40 17.0
LG290S1C(W)-L4 290 3% 39.0 9.61 31.9 9.10 15 1000 MC4 1640 1000 40 17.0
LG295S1C(W)-L4 295 3% 39.2 9.72 32.1 9.20 15 1000 MC4 1640 1000 40 17.0
LG300S1C(W)-L4 300 3% 39.4 9.83 32.3 9.30 15 1000 MC4 1640 1000 40 17.0
LGXXXS2C(W)-G4
LG300S2C(W)-G4 300 3% 44.8 9.02 36.2 8.30 20 1000 MC4 1960 1000 46 20.3
LG305S2C(W)-G4 305 3% 45.0 9.09 36.4 8.39 20 1000 MC4 1960 1000 46 20.3
LG310S2C(W)-G4 310 3% 45.2 9.15 36.6 8.48 20 1000 MC4 1960 1000 46 20.3
LG315S2C(W)-G4 315 3% 45.4 9.22 36.8 8.57 20 1000 MC4 1960 1000 46 20.3
LG320S2C(W)-G4 320 3% 45.6 9.28 37.0 8.66 20 1000 MC4 1960 1000 46 20.3
LG325S2C(W)-G4 325 3% 45.8 9.35 37.2 8.75 20 1000 MC4 1960 1000 46 20.3
LG330S2C(W)-G4 330 3% 46.0 9.41 37.3 8.85 20 1000 MC4 1960 1000 46 20.3
LG335S2C(W)-G4 335 3% 46.2 9.48 37.5 8.94 20 1000 MC4 1960 1000 46 20.3
LG340S2C(W)-G4 340 3% 46.4 9.54 37.7 9.02 20 1000 MC4 1960 1000 46 20.3
LG345S2C(W)-G4 345 3% 46.6 9.61 37.9 9.11 20 1000 MC4 1960 1000 46 20.3
LG350S2C(W)-G4 350 3% 46.8 9.67 38.1 9.20 20 1000 MC4 1960 1000 46 20.3
LG355S2C(W)-G4 355 3% 47.0 9.74 38.2 9.30 20 1000 MC4 1960 1000 46 20.3
LG360S2C(W)-G4 360 3% 47.2 9.80 38.4 9.38 20 1000 MC4 1960 1000 46 20.3
Note) MC4 formal name : PV-KST4 / 6II-UR, PV-KBT4 / 6II-UR
→ Plus (+) Connector : Female MC4 coupler (PV-KBT4/6II-UR)
→ Negative (-) Connector : Male MC4 coupler (PV-KST4/6II-UR)
A safety locking clip (MC PV-SSH4) may be required per article 690 of NEC 2008

13
Dimensions of Modules
60Cell Module 72Cell Module
960.0/37.80
(Distance between Mounting & Grounding Holes)
1000.0/39.37
(Size of Short Side)
Junction Box
1000.0/39.37
Cable Length
1100.0/43.31
(Distance between Mounting Holes)
1300.0/51.18
(Distance between Mounting Holes)
1640.0/64.57
(Size of Long Side)
270.0/10.63
170.0/6.69
105.0/4.13
4-5.5*4.0/0.22*0.16
Drain Holes
4-7.5*4.0/0.30*0.16
Drain Holes
4-Ø4.3/0.17
Grounding Holes
8-Ø8.2/0.32
Mounting Holes
960.0/37.80
(Distance between Mounting & Grounding Holes)
1000.0/39.37
(Size of Short Side)
150.0/5.91
Junction Box 4-Ø4.3/0.17
Grounding Holes
1200.0/47.24
Cable Length
1220.0/48.03
(Distance between Mounting Holes)
1420.0/55.91
(Distance between Mounting Holes)
1960.0/77.17
(Size of Long Side)
370.0/14.57
270.0/10.63
105.0/4.13
4-5.5*4.0/0.22*0.16
Drain Holes
4-7.5*7.0/0.30*0.28
Drain Holes
4-Ø4.3/0.17
Grounding Holes
8-Ø8.2/0.32
Mounting Holes
72Cell Module – only NEXTracker
960.0/37.80
(Distance between Mounting & Grounding Holes)
1000.0/39.37
(Size of Short Side)
4-Ø4.3/0.17
Grounding Holes
370.0/14.57
780.0/30.71
270.0/10.63
105.0/4.13
4-5.5*4.0/0.22*0.16
Drain Holes
4-7.5*7.0/0.30*0.28
Drain Holes
4-Ø4.3/0.17
Grounding Holes
8-Ø8.2/0.32
Mounting Holes
4-7.0*10.0/0.28*0.39
Mounting Holes
1200.0/47.24
Cable Length
Junction Box
1220.0/48.03
(Distance between Mounting Holes)
400.0/15.75
(Distance between Mounting Holes)
1420.0/55.91
(Distance between Mounting Holes)
1960.0/77.17
(Size of Long Side)
Note) Holder is for the convenient connection of junction box cable, but that does not warranty if it is broken after
installed.
Unit: mm / in.

14
APPENDIX
Fig.1 Mounting Type Fig.2 Clamping Type
①
②
①
②
①
②
①
②
A
B
B
A
①: 170mm(6.7 in)
②: 270mm(10.6 in)
Front : 6000Pa(125psf)
Rear : 5400Pa(113psf)
A : 150mm(5.9 in)
B : 400mm(15.7 in)
Front : 6000Pa(125psf)
Rear : 5400Pa(113psf)
Fig.3 Clamping Type Fig.4 Clamping Type
A
B
B
A
A
B
A
B
A : 150mm(5.9 in)
B : 400mm(15.7 in)
Front : 6000Pa(125psf)
Rear : 5400Pa(113psf)
A : 120mm(4.7 in) Front : 1800Pa(37.5psf)
Rear : 1800Pa(37.5psf)
B : 150mm(5.9 in) Front : 2850Pa(60psf)
Rear : 2850Pa(60psf)
Fig.5 Clamping Type Fig.6 Clamping Type
A
B
B
A
C
C
B
A
①
②
①
②
①
①
* 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
shield or de ector.
A : 150mm(5.9 in)
B : 400mm(15.7 in)
Front : 6000Pa(125psf)
Rear : 5400Pa(113psf)
A : 120mm
(4.7 in) *4point(①)Front : 1800Pa(37.5psf) Rear : 1800Pa(37.5psf)
C : 120mm(4.7in) Front : 3200Pa(67psf)
Rear : 1800Pa(37.5psf)
A : 120mm
B : 820 ±100mm
(32.3±3.9 in)
6point(①+②)Front : 6000Pa(125psf)
Rear : 5400Pa(113psf)
Note) All mechanical installation method(Fig.1 to Fig.6) in this appendix were not tested by Intertek.
(UL 1703, ULC 1703) It is evaluated by LG internal test.
Mechanical Installation : 60Cell Model

15
Fig.1 Mounting Type Fig.2 Clamping Type
①
②
①
②
①
②
①
②
A
B
B
A
①: 270mm(10.6 in)
②: 370mm(14.6 in)
Front : 5400Pa(113psf)
Rear : 4300Pa(90psf)
A : 250mm(9.8 in)
B : 400mm(15.7 in)
Front : 5400Pa(113psf)
Rear : 4300Pa(90psf)
Fig.3 Clamping Type Fig.4 Clamping Type
A
B
B
A
A
B
A
B
A : 250mm(9.8 in)
B : 400mm(15.7 in)
Front : 5400Pa(113psf)
Rear : 4300Pa(90psf)
A : 120mm(4.7 in) Front : 1800Pa(37.5psf)
Rear : 1800Pa(37.5psf)
B : 250mm(9.8 in) Front : 2850Pa(60psf)
Rear : 2850Pa(60psf)
Fig.5 Clamping Type Fig.6 Clamping Type
A
B
B
A
C
C
B
A
①
②
①
②
①
①
* 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
shield or de ector.
A : 250mm(9.8 in)
B : 400mm(15.7 in)
Front : 5400Pa(113psf)
Rear : 4300Pa(90psf)
A : 120mm
(4.7 in) *4point(①)Front : 1800Pa(37.5psf) Rear : 1800Pa(37.5psf)
C : 120mm(4.7in) Front : 3200Pa(67psf)
Rear : 1800Pa(37.5psf)
A : 120mm
B : 980 ±100mm
(38.6±3.9 in)
6point(①+②)Front : 5400Pa(113psf)
Rear : 4300Pa(90psf)
Note) All mechanical installation method(Fig.1 to Fig.7) in this appendix were not tested by Intertek.
(UL 1703, ULC 1703) It is evaluated by LG internal test.
Mechanical Installation : 72Cell Model

16
Fig7. Mounting Type
①
①
①
①
①: 780mm(30.7 in) Front : 2250Pa(47psf)
Rear : 2250Pa(47psf)
* This method is used to tracking system ; ex)NEXTracker

17
Alternate Equipment Grounding Devices
This appendix denes alternative grounding methods for LG PV modules and applies to the LG Module Install manual
and listed manufacture’s installation guide. These alternative grounding devices indicated on this page has been
evaluated and approved by LG, not by ETL. If such devices want to be used to meet the requirement in UL 1703,
some adequate tests shall be conducted in accordance with UL1703 additionally.
Line of Devices
Products
Remark
Manufacture Ground Devices
Everest - Everest Solar Universal Bonding Clamp
IronRidge - IronRidge IG (Integrated Grounding) Clamp / UFO Mid Clamp
Unirac - Unirac Bonding Mid Clamp / SunFrame Micro Rail / Wire
Bonding Clip w/ 8 AWG
Panel Claw - Standard Claw / Long Claw / PolaBear III Claw
Quickmount PV - Quick Rack Panel Clamp
SnapNrack - SnapNrack Bonding Mid Clamp / SnapLink for RL system
Ecolibrium - EcoX Clamp and Coupling assembly / EcoFoot Clamp
Pegasus - Pegasus LightSpeed Corners
Schletter - Rapid Grounding Module Clamps
Dynorax - DynoBond
Roof Tech - Roof Tech Bonding Plate
ILSCO - ILSCO SGB-4 Solar Grounding Lug
TYCO - TYCO 2058729 / 2106831 SolarLock Grounding Assy
Wiley Burndy
WEEB LUG / WEEB KMC in combination with Everest clamp /
WEEB DMC in combination with IronRidge clamp / Wiley
WEEB UMC or UGC-1 in combination with Unirac clamp /
WEEB PMC in combination with Pro Solar clamp / WEEB DPW
in combination with DPW Solar clamp
Important Notes
1. The NEC section 690.43 states, “Exposed non-current carrying metal parts of module frame, equipment and
conductor enclosures shall be grounded in accordance with 250.134 or 250.136(A) regardless of voltage”
2. Functionality will not be guaranteed if reused.

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1000 Sylvan Ave, Englewood Cliffs, NJ 07632
Contact : [email protected]
http://www.lgsolarusa.com
This document is subject to change without notice.
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intellectual properties of LG Electronics, Inc. are protected by international copyright laws.