Panasonic HIT Power 240S Series User manual

1
General Installation Manual
Photovoltaic Module HIT®
HIT Power 240S series
HIT Power 235S series
HIT Power 230S series
Thank you for choosing Panasonic HIT®. Please
read this manual completely before installation
or use of Panasonic PV(photovoltaic) modules.
With proper operation and maintenance,
Panasonic HIT®will provide you with clean,
renewable solar electricity for many years. This
manual contains important installation,
maintenance and safety information. The word
“module” as used in this manual refers to one
or more PV modules. Retain this manual for
future reference. The module is considered to
be in compliance with UL 1703 only when the
module is mounted in the manner specified by
the mounting instructions below.
SANYO is part of the Panasonic Group and is
in charge of the manufacturing process for
Panasonic HIT®.
Model No.
HIT Power 240S
VBHN240SA11 and 11B
HIT Power 235S
VBHN235SA11 and 11B
HIT Power 230S
VBHN230SA11 and 11B
Contents
Please read before installation
Safety Precautions
General Information :3
Warning :3
Cautions :3
General Safety :3
UL Listing Information :3
Installation
General :4
Notes on Installation :4
Operating Conditions :5
Specifications
Note on Specifications :5
Mechanical Loading :5
Wiring
General :5
Module Wiring :5
Array Wiring :5
Earth Ground Wiring :5
Grounding Locations :6
Grounding Methods :6
Module Terminations :8
Junction Box and Terminals :8
Conduit :8
Bypass Diodes :8
Maintenance :8
Disclaimer of Liability :8
Customer Services :8
“HIT”is a registered trademark of Panasonic
Group.
Other product and service names listed in this
manual are trademarks or registered trademarks
of their respective companies.
VBHNxxxSA series

2
Edition
Revision Date
Revised Item
Revised Content
New Edition
2013.4.19
2nd Edition
2015.3.18
(1) System Fire Class Rating
(2) Trademark
(3) Front cover, Grounding
(1) Addition of System Fire Class Rating
(2) Explanation of trademark
(3) According to UL1703 Edition 3
–Revision date 2014/11/18

3
Safety Precautions
General Information
The installation of solar modules requires a
great degree of skill and should only be
performed by qualified licensed professionals,
including, without limitation, licensed contractors
and electricians.
WARNING
All instructions should be read and
understood before attempting to install, wire,
operate, and maintain a photovoltaic module.
Contact with electrically active parts of the
module such as terminals can result in
burns, sparks, and lethal shock whether the
module is connected or disconnected.
The installer assumes the risk of all injury
that might occur during installation, including,
without limitation, the risk of electric shock.
The modules generate DC (direct current)
electrical energy when exposed to sunlight
or other light sources. Even a single
module produces enough voltage and
current, to cause shocks and burns if
safety precautions are not followed.
The shock hazard increases as modules are
connected in parallel, producing higher
current, and as modules are connected in
series, producing higher voltages.
To avoid the hazard of electric sparks,
shock, fire, burns, damage and injury:
Work only in dry conditions, with dry
modules and dry tools.
Do not stand or step on modules. Do not
puncture, cut, scratch or damage the
backsheet of a module. Backsheet damage
will void a module’s Limited Warranty and
may cause fire. Never use modules with a
damaged back sheet.
Do not allow children and unauthorized
persons near the installation or storage site
of modules.
Completely ground all modules.
Do not disassemble a module, attempt any
repair, open the junction box cover, nor
remove any parts installed by Panasonic.
There are no user serviceable parts within
the module or junction box.
Unauthorized persons - except the qualified
licensed professional - should not perform
any electrical work, including wiring,
Wear suitable clothing, guards, eye
protection and gloves to prevent you from
direct contact with 30 VDC or greater.
Wear non-slip gloves and carry modules by
the frame using both hands. Do not
attempt to carry a module by yourself.
Do not carry a module by its wires or
junction box.
Do not drop anything on the surface of a
module.
Ensure all system components are
compatible, and they do not subject the
module to mechanical or electrical hazards.
Sparks may occur; do not install modules
where flammable gases or vapors are
present.
Never rest or leave a module unsupported
or unsecured.
Do not drop modules.
Do not use or install broken modules.
Do not artificially concentrate sunlight on a
module.
Do not touch the junction box terminals.
Do not change the wiring of bypass diodes.
Do not touch a module unnecessarily. The
glass surface and frames get hot. There is
a risk of burn.
CAUTIONS
Use a module for its intended purpose only.
Do not treat the back sheet, frame, or
front surface with paint or adhesives, to
avoid reducing its’ functionality, damage,
and causing inoperable conditions, and
other unknown troubles.
Do not insert PV cable between back side
and mounting structure rail.
GENERAL SAFETY
Follow all permissions, installation and
inspection requirements.
Before installing modules, contact the
appropriate authorities having jurisdiction to
determine permissions, installation and
inspection requirements, which should be
followed.
Electrically ground modules for all systems
of any voltage. If not otherwise specified, it
is recommended that requirements of the
latest National Electrical Code (USA) or
Canadian Electric Code (Canada) or other
national or international electrical standards
be followed. Refer to “Earth Ground
Wiring” section for more information.
Be sure that the building or structure (roof,
façade, etc.) where the modules are being
installed has enough strength to support the
load of the modules.
For modules mounted on roofs, special
structures may be required to help provide
proper installation support.
The fire rating of this module is valid only
when mounted in the manner specified in
the mechanical mounting instructions.
Both, roof construction and module
installation design have an effect on the
fire resistance of a building. Improper
installation may contribute to fire hazards.
The models in this instructions are suitable
to maintain the System Fire Class Rating A
when used with a Listed mounting system
and a roof covering that have been rated
as a Class A System when installed on a
steep slope roof and/or a low slope roof
with "Type 2" modules.
Additional devices such as ground fault,
fuses, and disconnects may be required.
Do not use modules of different
specifications in the same system.
Follow all safety precautions of other
system components which are used.
UL Listing Information
To satisfy UL requirements, when installing the
modules, be sure to:
1) Use only stranded or solid copper single–
conductor sunlight-resistant cable rated for
outdoor use (e.g. type UF or USE) , for
all wiring that is exposed to weather.
2) Observe the requirements described in
sections labeled INSTALLATION and
SPECIFICATIONS.
INSTALLATION
General
Please read this guide completely before
installing or using your Panasonic PV modules.
This section contains important electrical and
mechanical specifications.
Modules should be firmly fixed in place in
a manner suitable to withstand all expected
loads, including wind and snow loads.
Metals used in locations that are exposed
to moisture shall not be employed alone or
in combinations that could result in
deterioration or corrosion.

4
Install modules where they are not shaded
by obstacles like buildings and trees. Pay
special attention to avoid partially shading
the modules by objects during the daytime.
If needed, contact an Authorized
Representative with questions regarding
mounting profiles for Panasonic HIT®.
Notes on Installation
Clearance between the roof surface and
module frame is required to allow cooling
air to circulate around the back of the
module. This also allows any condensation
or moisture to dissipate. Install modules
with a minimum of 1 inch clearance
between the roof surface and the modules
so that air can circulate.
Panasonic recommends the installation
method and mounting profile shown in
Figure 1
A module should be attached on a mount
or support structure rail by corrosive-
resistant metal clamps.
The clamps should be made of aluminum
alloy or other material that will reasonably
protect against a risk of electrolytic
corrosion.
Recommendation of bolt torque range:
16N.m to 20N.m
The module was tested using Unirac clamps
with the specifications see figure 1 and
below;
Provider: UniRac, Inc.
Part number: SolarMount®
Clamps type: Top Mounting Clamps
Clamp size:Mid clamp and End clamp,
C size,
Unirac Part No. 302003, 302101
Width: 1.5”(38 mm)
Thickness : 0.12”(3 mm)
Torque range: 16N.m to 20N.
Material: Aluminum Alloy (6005-T5,
6105-T5, 6061-T6)
If another clamp except Unirac is used it
must have material (alloy designations),
physical dimension and capture area with
specifications as bellow;
Thickness : 0.12”(3 mm) or more
Material: Aluminum Alloy (6005-T5,
6105-T5, 6061-T6)
Panasonic does not provide a warranty for
clamps. The module warranty Panasonic
provides shall be voided if clamps selected
by the customer are of an improper
material or size
Operating Conditions
Panasonic requires that modules are operated
within the following Operating Conditions:
Installation (reference)
Solar Module
Metal clamp B
(2 places)
Metal clamp A
(2 places)
Mounting
Structure Rail
Metal clamp B
Solar Module
Metal clamp A
Mounting Structure Rail
Metal clamp B
Module
Mounting Structure
M8 Nut
Metal clamp A
M8 Bolt
M8 Bolt
M8 Nut
End of Module
Between Modules
Figure 1. Installation
1.5”
(38mm)
0.12”
(3mm)
0.2” (5mm)
1.37”
(35mm)
0.18”
(4.6mm)
Mounting Structure
Module
0.62”
(16mm)
0.43”
(11mm)
0.2” (5mm)
0.12”
(3mm)
0.2”
(5mm)
0.2”
(5mm)
0.2”
(5mm)
1.5”
(38mm)

5
1) Terrestrial applications only—no outer space
or Special Conditions (see below).
2) The ambient temperature must be within –
20°C (-4°F) to 40°C (104 °F). The
temperature limits are defined as the
Monthly Average High or Low of the
installation site.
3) The wind pressure load of the installation
site should be less than 2,400N/m2
(50PSF)
4) Some environmental conditions could apply.
Please refer to Panasonic’s warranty
exclusions.
SPECIFICATIONS
Notes on Specifications
1) Rated electrical characteristics are within –
5% to +10% of the values measured at
Standard Test Conditions (STC). STC
conditions are; Irradiance of 1000W/m2,
25°C cell temperature, and solar spectral
irradiance per IEC 60904-3. Note: At the
time of shipment, Panasonic guarantees the
output level of its modules to be -0/+10%
against Rated Power in SPECIFICATIONS
based on factory inspection at STC
conditions.
2) Under real conditions, a photovoltaic module
may experience conditions that produce
more current and/or voltage than
reported at Standard Test Conditions.
Therefore, the Isc value of modules should
be multiplied by a factor of 1.25 to
determine ampacity. An additional factor of
1.25 may be required for sizing conductors,
fuses, disconnects, etc. Please refer to
section 690.8 of the National Electric Code
(NEC) for guidelines. The Voc must be
factored according to the lowest recorded
ambient temperature recorded for the
location where the modules will be installed.
Please refer to section 690.7 of the NEC
for more information regarding voltage
temperature factors.
3) The current output for the modules shown
in the SPECIFICATIONS section is
measured at Standard Test Conditions.
These conditions may not be frequently
observed in actual practice.
Mechanical Loading
The modules should be mounted at the
four (4) quarter points by the means
shown in Figure 2.
This method offers a maximum load of
2,400N/m2 (50PSF) in a static state on
the module surface.
Note: This mechanical loading value was
tested using the mounting device specified
in section “Notes on Installation”.
WIRING
General
All wiring should be done in accordance
with applicable electrical codes.
Wiring methods should be in accordance
with the NEC in USA or CEC in Canada.
A qualified, licensed professional should do
all wiring.
Wiring should be protected to help ensure
personal safety and to prevent damage.
All modules connected in series should be
of the same model number and/or type.
Do not connect modules in parallel without
using a connection box that connects
appropriate FUSE for each series string or
each module.
Do not disconnect terminals while modules
generate electricity and connect electrical
load to avoid the hazard of electrical shock.
To avoid the hazard of electric shock and
sparks, please connect each cable after
confirming the polarity of them is correct.
Cable conduits should be used in locations
where the wiring is inaccessible to children
or small animals.
Module Wiring
The number of modules that can be wired
in series is recommended to be ten (10)
or fewer. If connecting eleven (11)
modules in series, check local temperature
conditions and follow the National Electric
Code (690.7) to ensure compliance with
maximum voltage limitations.
Modules are not designed for “off-grid” or
battery charging systems, because of their
operating voltage. Therefore, it is not
recommended to use them for charging
batteries.
These modules contain factory installed
bypass diodes. If these modules are
incorrectly connected to each other, the
bypass diodes, cable, or junction box may
be damaged.
Array Wiring
The term “array” is used to describe the
assembly of several modules on a support
structure with associated wiring.
Use copper wire which insulation is sunlight
resistant and can withstand the maximum
possible system open circuit voltage.
Interconnection of modules must be
performed in a professional fashion. Wires
should be secured and only reasonable
slack should be allowed.
Check local codes for requirements.
Earth Ground Wiring
A module with exposed conductive parts is
considered to be in compliance with UL
1703 only when it is electrically grounded
in accordance with the instructions presented
below and the requirements of the National
Electrical Code.
All modules should be grounded. All
structures or metallic components in direct
contact with the modules or electric wires
should be properly grounded too. To avoid
the hazards of electric shock or fire,
modules should be grounded by the frame
only at the locations marked in this manual
(see grounding methods below).
The array frame shall be grounded in
accordance with NEC Article 250 (USA)
or the CEC in Canada.
Bonding shall be by a positive means,
such as clamping, riveting, bolted or
screwed connectors, or welding, soldering or
brazing. If the bonding means depends
upon screw threads two or more screws or
two full threads of a single screw must
engage the metal
Great care should be exercised to ensure
that corrosion caused by the grounding
means be avoided.
Corrosion can increase the resistance of the
grounding connection on the module, or can
even cause the grounding connection to fail
entirely. Corrosion can be caused by the
effects of weather, humidity, dirt and so on.
It can also be caused when two dissimilar
metals are in contact (galvanic reaction).
The module frame material is
aluminum/magnesium alloy.
All fasteners (nuts, bolts, washers,
screws, etc.) must be stainless steel
unless otherwise specified.
Length of self-tapping machine screw or
bolt should not be more than 0.78’’ (20
mm) in order to avoid contacting the
back-sheet of the module.

6
Ground Location
(smaller holes for self-tapping machine screw)
Junction Box
Label
Backside
The ground holes
are on the backside of the
module frame.
Figure 3.1
Module Ground Position
Ground Location
(larger holes for bolt and nut)
Acceptable grounding wire is following.
Ilsco Corp. GBL-4DBT 10-14AWG-Solid,
4-6, 8, 10-14AWG-Strand
Burndy L L C CL501TN 14AWG-Solid, 14-
4AWG-Strand
Tyco Electronics Corp. 1954381-
1/1954381-2 10-12AWG Solid
Each ledge on the module frame has two
smaller holes for self-tapping machine
screws (0.165’‘diameter (4.2 mm)) and
two larger holes for bolts (0.205’‘diameter
(5.2 mm)). These ground holes are
marked with a “G” adjacent to their
location on the frame rail (see Figure 3.1).
Ground wires must be connected to the
module’s metal frame at one of these
locations.
Lay-in lugs or grounding clips can be used
to ground Panasonic PV modules. Both
methods are explained below, please
choose one.
Grounding Locations (or grounding holes)
Using a self-tapping machine screw (see
Figures 3.2 and 3.4)
If using this method, use one of the
smaller holes with diameter of 0.165’‘ (4.2
mm)
The self-tapping machine screw size must
be No.10 (0.190’‘diameter (4.83mm)).
This method requires a minimum number of
threads-per-inch to achieve an adequate
electrical connection. For a single screw,
the thread pitch must be at least 32
threads per inch (TPI). A single screw
less than 32 TPI does not provide
sufficient thread contact. Note: Self-tapping
machine screws are also called thread
cutting screws.
Recommended torque value in tightening
self-tapping machine screw is 2.3 N.m
(20in-lb).
Using bolt and nut (see Figures 3.3 and 3.5)
If using this method, use one of the larger
holes with diameter of 0.205’‘ (5.2 mm)
The bolt and nut size should be No.8
(0.164’‘diameter (4.16 mm)), or
No.10 (0.190’‘diameter (4.83 mm))
or M5 (0.197’‘diameter (5.0 mm)).
Star washers must be used to make
contact through the anodization of the
module frame.
In this case, the screw threads are not
providing the electrical ground contact.
Recommended torque value in tightening
bolt and nut is 2.3 N.m (20in-lb).
Grounding Methods
Where common grounding hardware (nuts,
bolts, star washers, spilt-ring lock washers,
flat washers and the like) is used to
attach a listed grounding/bonding device,
the attachment must be made in
conformance with the grounding device
manufacturer's instructions.
Common hardware items such as nuts,
bolts, star washers, lock washers and the
like have not been evaluated for electrical
conductivity or for use as grounding devices
and should be used only for maintaining
mechanical connections and holding electrical
grounding devices in the proper position for
electrical conductivity. Such devices, where
supplied with the module and evaluated
through the requirements in UL 1703, may
be used for grounding connections in
accordance with the instructions provided
with the module.
Wire connection using cup washers (see Figures
3.2 and 3.3)
The use of cup washers is to prevent wire
from slipping out from under the screw
head (and/or the flat washer).
Make sure that the cup washer is placed
between the wire and the module frame.
Choose an adequate size for the cup
washer and the flat washer so that the
wire is fully clamped between them.
Note: Cup washers are also called terminal
cup washers.
The cup washers should be stainless steel,
or a cup washer made of brass may be
used only if a large flat washer made of
stainless steel is inserted between the
module frame and the cup washer.
Choose the adequate size for the large flat
washer (between the module frame and
the cup washer) so that the cup washer
doesn’t contact the module frame and is
fixed stably to the module frame.
Method 1- Use a self-tapping machine screw
(see Figures 3.1 and 3.2)
If using this method, use one of the
smaller holes with diameter of 0.165’‘ (4.2
mm)
The self-tapping machine screw size must
be No.10 (0.190’‘ diameter (4.83mm)).
This method requires a minimum number of
threads-per-inch to achieve an adequate
electrical connection. For a single screw,
the thread pitch must be at least 32
threads per inch (TPI). A single screw
less than 32 TPI does not provide
sufficient thread contact. Note: Self-tapping
machine screws are also called thread
cutting screws.
Method 2- Use a bolt and nut (see Figures 3.1
and 3.3)
If using this method, use one of the larger
holes with diameter of 0.205’‘ (5.2 mm)
The bolt and nut size should be No.8
(0.164’‘ diameter (4.16 mm)), or No.10
(0.190’‘ diameter (4.83 mm)) or M5

7
(0.197’‘ diameter (5.0 mm)).
Star washers must be used to make
contact through the anodization of the
module for this method.
In this case, the screw threads are not
providing the electrical ground contact.
Using lay-in lug with self tapping machine screw
If using this method, please follow
instructions in previous section regarding
using self-tapping machine screws.
Use a grounding tin plated solid copper
lay-in lug rated for direct burial and
outdoor use. Lug must be used ILSCO
GBL-4DBT, Burndy CL501TN.
The self-tapping machine screw size must
be No.10 (0.190’‘ diameter (4.83mm)).
This method requires a minimum number of
threads-per-inch to achieve an adequate
electrical connection. For self-tapping
machine screws, the thread pitch must be
at least 32 threads per inch (TPI). A
single screw less than 32 TPI does not
provide sufficient thread contact. Note: Self-
tapping machine screws are also called
thread cutting screws.
As shown in figure 3.4, attach grounding
lug to module frame using a stainless steel
self-tapping machine screw.
Insert a stainless steel star washer between
the module frame and the lug to penetrate
frame anodization.
Tighten stainless steel set screw at the
torque specified by lug manufacturer to
secure copper wire.
The specified torque is following
Ilsco Corp. GBL-4DBT
10-14AWG-Solid -> 20 in-lbs,
4-6AWG-Strand -> 35 in-lbs,
8AWG-Strand -> 25 in-lbs, 10-
14AWG-Strand -> 20 in-lbs
Burndy L L C CL501TN 14AWG-
Solid -> 35 in-lbs,
14AWG-Strand -> 35 in-lbs,
4AWG-Strand -> 45 in-lbs
Recommended torque value in tightening
self-tapping machine screw is 2.3 N.m
(20in-lb).
Using a lay-in lug with bolt and nut
If using this method, please follow
instructions in previous section regarding
using bolts and nuts with larger grounding
holes.
Use a grounding tin plated solid copper
lay-in lug rated for direct burial and
outdoor use. Lug must be used ILSCO
GBL-4DBT, Burndy CL501TN.
Attach grounding lug to module frame using
a stainless steel bolt and lock-nut as
shown in figure 3.5.
Tighten stainless steel set screw at the
torque specified by lug manufacturer to
secure copper wire.
Recommended torque value in tightening
bolt and nut is 2.3 N.m (20in-lb).
Using a Grounding Clip with self- tapping
machine screw
Use Tyco Electronics 1954381-1 as
grounding clip.
As shown in figure 3.6, place the
grounding clip onto the module frame.
Thread the screw into the hole until the
head is flush with the base and base is
flush with the frame, then tighten the screw
with 1/4 to 1/2 turn.
Recommended torque value in tightening
self-tapping machine screw is between 2.3
and 2.8 Nm.
Insert the wire into the wire slot. Press
down on both ends of the wire.
Manually, or using channel lock pliers, push
the slider over the base until it covers the
base. This will terminate the wire.
For more information, please refer to
Instruction sheet issued by Tyco Electronics.
Using a Grounding Clip with bolt and nut
Use Tyco Electronics 1954381-2 as
grounding clip.
As shown in figure 3.7, place the
grounding clip onto the module frame.
Thread the hex nut onto the end of the
screw, then using a 3/8-in. wrench,
tighten the nut.
Recommended torque value in tightening
bolt and nut is between 1.7 and 2.2 Nm.
Insert the wire into the wire slot. Press
down on both ends of the wire.
Manually, or using channel lock pliers, push
the slider over the base until it covers the
base. This will terminate the wire.
For more information, please refer to
Instruction sheet issued by Tyco Electronics.
Module Terminations
A junction box as a terminal enclosure is
equipped for electrical connections.
VBHNxxxSA11 and VBHNxxxSA11B Modules are
equipped with MCTM plugs as a terminal
enclosure. Use these MCTM plugs for electrical
connections (see Figure 4.1).
Junction Box and Terminals
Modules are equipped with one junction box
containing terminals for both, positive and
negative polarity, and bypass diodes.
Each terminal is dedicated to one polarity
with the polarity symbols engraved onto the
body of the junction box (see Figure 4.2).
Each terminal is provided with factory
installed lead cables and a latching
connector for series and string connections.
Always use these connectors and do not
detach them from cables.
Latching connectors are type IV and made
by Multi-Contact. Supplied connectors listed
by UL.
In order to comply with NEC 2008, a
locking sleeve needs to be used with all
connectors that are exposed.
The locking sleeve (PV-SSH4) is made
by Multi-Contact and can only be released
with a special tool also made by
Multicontact (PV-MS). Locking sleeves are
not supplied with modules and must be
purchased separately.
Conduit
In applications where wire raceways or
conduit are used, follow the applicable
codes for outdoor installations..
Verify that all fittings are properly installed
to protect wires against damage and
prevent moisture intrusion.
DIODES
Bypass Diodes
When modules in series strings are partially
shaded, it may cause reverse voltage
across cells or modules, because the
current from other cells in the same series
is forced to flow through the shaded area.
This may cause undesirable heating to
occur.
The use of a diode to bypass the shaded
area can minimize both heating and array
current reduction.
Modules are equipped with factory installed
bypass diodes. The factory-installed diodes
provide proper circuit protection for the
systems within the specified system voltage,
so that you do not need any other
additional bypass diodes.
Contact your Panasonic Authorized
Representative for proper diode type, if it is
necessary to add or change diodes due to
system specifications.
MAINTENANCE
Some maintenance is recommended to
maintain optimal output performance of the
solar modules.

8
If the module surface becomes dirty, it may
reduce output power.
It is recommended to clean the surface of
the module with water and a soft cloth or
sponge, twice or more per year.
A mild non-abrasive detergent may be
applied for persistent dirt.
It is also recommended to inspect the
electrical and mechanical connections
annually.
If you need electrical or mechanical
inspection or maintenance, it is
recommended to have a licensed authorized
professional carry out the inspection or
maintenance to avoid the hazards of electric
shock or injury.
Disclaimer of Liability
Panasonic does not assume responsibility
and expressly disclaims liability for loss,
damage, or expense arising out of, or in
any way connected with installation,
operation, use, or maintenance by using
this manual.
Panasonic assumes no responsibility for any
infringement of patents or other rights of
third parties, which may result from use of
modules.
No license is granted by implication or
under any patent or patent rights. The
information in this manual is believed to be
reliable, but does not constitute an
expressed and/or implied warranty.
The return of any modules will not be
accepted by Panasonic unless prior written
authorization has been given by Panasonic.
As part of Panasonic’s policy of continuous
improvement, Panasonic reserves the right
to change product specifications at any time
without prior notice.
Customer Services
For further information, please visit
http://panasonic.net/energy/solar/ or
contact your Panasonic Authorized
Representative.
Figure 4.2 Junction Box
Cable
Negative ( - )
Positive ( + )
Figure 4.1 Connectors
Option:
Safety lock clip
Connector
MC TM Plug
Cable
Negative ( - )
Positive ( + )

9
Cup washer (Terminal cup)
(Stainless steel or *brass)
Figure 3.2 (Method 1)
Grounding method
using self-tapping machine screw
Note: Use the smaller ground holes
illustrated in Figure 3.1.
Frame (Longer side)
Ground wire (#12AWG)
(wound around the screw)
Flat washer (Stainless steel)
Spring washer (Stainless steel)
Self-tapping machine screw (Stainless
steel)
#10-32
Grounding hole
(0.165’‘ diameter (4.2 mm) )
Glass
Length
(not less than 0.47’‘(12 mm)
not more than 0.78’‘(20 mm))
Backsheet
*Flat washer (Stainless steel)
*If using a brass cup washer, a flat
washer must be inserted between the
cup washer and module frame, and the
flat washer diameter must be greater
than the cup washer diameter.
*If using a brass cup washer, a flat
washer must be inserted between the
cup washer and module frame, and the
flat washer diameter must be greater
than the cup washer diameter.
Cup washer (Terminal cup)
(Stainless steel or *brass)
Star washer (Stainless steel)
Flat washer (Stainless steel)
Flat washer (Stainless steel)
Spring washer (Stainless steel)
Bolt (Stainless steel)
#8, #10, M5
Grounding hole
0.205’‘ diameter
(5.2 mm))
Length
(not less than 0.63’‘(16 mm)
not more than 0.78’‘(20 mm))
Frame (Longer side)
Nut (Stainless steel)
Figure 3.3 (Method 2)
Grounding method
using bolt and nut
Note: Use the larger ground holes
illustrated in Figure 3.1.
Ground wire (#12AWG)
(wound around the bolt)
Glass
Backsheet
*Flat washer (Stainless steel)

10
Figure 3.4
Grounding method
Using self-tapping machine screw
Note: Use the smaller ground holes
illustrated in Figure 3.1.
Select a grounding the following lug.
ILSCO GBL-4DBT,
Burndy CL501TN
Figure 3.5
Grounding method
Using bolt and nut
Note: Use the larger ground holes
illustrated in Figure 3.1.
Select a grounding the following lug.
ILSCO GBL-4DBT,
Burndy CL501TN
Glass
Backsheet
Frame (Longer side)
Grounding hole
(0.205” diameter (5.2mm))
Flat washer (Stainless steel)
Thickness:
not less than 0.037” (0.94
mm)
Diameter:
not less than 0.75”
(19.05 mm)
Grounding Lug
Bolt (Stainless steel)
#8, #10, M5
Nut (Stainless steel)
Copper wire
Set screw (Stainless screw)
Star washer (Stainless steel)
Length
(not less than 0.63’‘(16 mm)
not more than 0.78’‘(20 mm))
Self-tapping machine screw (Stainless
steel)
Copper wire
Frame (Longer side)
Glass
Backsheet
Grounding hole
(0.165” diameter (4.2mm))
Star washer (Stainless steel)
Thickness:
not less than 0.02” (0.51 mm)
Diameter:
not less than 0.4” (10.16 mm)
Grounding Lug
Set screw (Stainless screw)
Length
(not less than 0.47’‘(12 mm)
not more than 0.78’‘(20 mm))

11
Figure 3.6
Grounding method
Using Grounding Clip with self-tapping
machine screw
Note: Use the smaller ground holes
illustrated in Figure 3.1.
Grounding Clip Assemblies: Tyco
Electronics 1954381-1.
Figure 3.7
Grounding method
Using Grounding Clip with bolt and nut
Note: Use the larger ground holes
illustrated in Figure 3.1.
Grounding Clip Assemblies: Tyco
Electronics 1954381-2
Glass
Backsheet
Frame (Longer side)
Grounding hole
(0.205” diameter (5.2mm))
Grounding Clip
8-32 Screw (Stainless steel)
Nut (Stainless steel)
Copper wire
Length
(not less than 0.63’‘(16 mm)
not more than 0.78’‘(20 mm))
Copper wire
Frame (Longer side)
Glass
Backsheet
Grounding hole
(0.165” diameter (4.2mm))
Grounding Clip
Self-tapping machine screw (Stainless steel)
Length
(not less than 0.47’‘(12 mm)
not more than 0.78’‘(20 mm))

12
Model HIT Power 240S HIT Power 235S HIT Power 230S
VBHN240SA11 VBHN235SA11 VBHN230SA11
VBHN240SA11B VBHN235SA11B VBHN230SA11B
Cell Number in Series 72 72 72
Rated Power, Watts (Pmax) 240 235 230
Maximum Power Voltage (Vpm) 43.7 43.0 42.3
Maximum Power Current (Ipm) 5.51 5.48 5.45
Open Circuit Voltage (Voc) 52.4 51.8 51.2
Short Circuit Current (Isc) 5.85 5.84 5.83
Cell Type Heterojunction Heterojunction Heterojunction
Maximum System Voltage (Voc) 600 600 600
Factory Installed Bypass Diodes 333
Maximum series fuse (A) 15 15 15
Mechanical Specifications
Length, mm (inches)
Width, mm (inches)
Frame Depth, mm (inches)
Weight, kg (pounds)
35 (1.4)
15 (33.1)
Electrical Specifications
1580 (62.2)
798 (31.4)
SPECIFICATIONS
Figure 2 Dimensions
Dimensions
All HIT Power S Models (VBHNxxxSA11VBHNxxxSA11)
Note : A module should be installed on a mounting structure rail in accordance with the following
＞Use four (4) symmetrical mounting within setting range A.
: range A
Front
Side
Backside
Dimensions in mm
Mount Locations
Ground (4 places)
Label
Onamba
Junction Box
Negative
(-)
Positive
(+)