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AC Module
Installation Guide Content for ET-P660250AC
May 9, 2012
© 2011- 2012 ET Solar Group All Rights Reserved. No part of this publication may be reused in any manner nor in any form or format without prior written permission from ET Solar Group. ET Solar Group 97 Jiangzhou South Roud Taizhou, China, 225300 Phone: +86 523 8639 0333 • Fax: +86 523 8639 0233
Trademarks ET Solar, ET are all trademarks of ET Solar Group
All other products and services mentioned herein are trademarks or registered trademarks of their respective companies.
Disclaimer The information contained in this manual is based on ET Solar Group’s knowledge and experience, but such information and suggestions do not constitute a warranty expressed or implied. The methods of installation, use and maintenance of ET Solar AC Module are beyond the control of ET Solar Group. ET Solar Group assumes no responsibility and expressly disclaims liability for any loss, damage or expense associated with the use, installation or operation of the ET Solar AC Module. Any liability of ET Solar Group is strictly limited to the Limited Warranty. ET Solar Group reserves the right to make changes to product specifications or to this manual without notice.
PN: ETM-0001-AC Rev. 01
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1
Content
Read this First! ............................................................................................................. 2 IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS ........ 2 FCC Compliance ................................................................... 4
Introduction .................................................................................................................. 6 Components of an AC Module ................................................... 6 Grounding in the AC Cables ..................................................... 7 Three-Phase Installation ......................................................... 8 Module Layout Diagram .......................................................... 9 Connecting Latching Cables .................................................... 11 Disconnecting Latching Cables ................................................ 12
Module Preparation ................................................................................................... 13 Preparing the Modules .......................................................... 14 Preparing the Last Module in the String ..................................... 15
Module Installation .................................................................................................... 16 Installing the Modules ........................................................... 16
Examples ..................................................................................................................... 19 Junction Box - Top Right ....................................................... 19 Junction Box - Top Left ......................................................... 20 Two Strings – Two rows each .................................................. 21 Two Strings – Single Rows ...................................................... 22 Landscape – Two Strings ........................................................ 23
Three-line Diagram .................................................................................................... 24 Single-Phase 240 V Diagram .................................................... 24 Three Phase 208 V Diagram .................................................... 25
AC Wiring Accessories .............................................................................................. 27 Technical Specifications ............................................................................................ 31 Utility Interaction....................................................................................................... 33
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Read this First!
This document contains important information and instructions to safely install an
array of alternating current photo-voltaic (AC) solar modules. Failure to follow
these instructions can result in equipment damage or failure, or personal injury,
and might void the system warranty.
The following symbols are used throughout this document to alert you to important
safety information that you will need during the installation:
This symbol indicates that failure to follow instructions may result in serious hardware failure.
Use caution when completing this task.
This symbol indicates that failure to follow instructions may result in serious personal injury.
Use extreme caution when completing this task.
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
• Perform all electrical installations in accordance with any local codes, the National
Electrical Code (NEC) ANSI/NFPA 70 for US installations, or the Canadian Electrical Code
Part I, CSA C22.1 for Canada.
• This unit or system is provided with fixed trip limits and shall not be aggregated above
30 kW on a single Point of Common Connection. See "Utility Interaction" on page 33 for
voltage and frequency trip limits.
• This AC module is intended for operation in an environment having a maximum
ambient temperature of 85℃.
• Work with the local electric company and authorities having jurisdiction (AHJ) before,
during, and after the installation of the solar electric system. The following are examples
of possible requirements the electric company might have regarding the installation:
• An upgrade of the existing meter
• A readily accessible AC system disconnect and a diagram showing its placement
• An inspection or approval before connecting the system to the utility grid
• Qualified personnel or electric company employee to connect the system to the
utility grid
WARNING: Shock Hazard. AC wiring from the utility to the array junction box is energized by
both utility dedicated branch circuit(s) and AC modules rated as "Utility Interactive". Opening
the array's dedicated branch disconnect will also cause the AC modules to stop producing
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3
power. Proper safety procedures must be followed when installing or accessing the dedicated
branch circuit wiring, which includes unplugging the AC Modules from the dedicated branch
circuit.
• The AC module interconnecting cable system includes an internal equipment grounding
conductor (EGC) connected to each module through pluggable connectors with a longer
ground pin.
• The AC module does NOT require a DC or AC grounding electrode conductor (neutral) at
the inverter, and the neutral within the AC module is isolated from ground.
• The AC module must be connected to a dedicated branch circuit from an AC supply
system with the neutral referenced to ground at the building or structure electrical
service entrance.
• The connector on the AC interconnecting cables is rated for disconnect under load and
can be used as an NEC disconnect device. Some AHJs might require a separate
disconnect next to the AC module system as well as a readily accessible disconnect.
• The AC cables and connectors are listed for outdoor use, are rated for 20A, and have
insulation rated to a minimum temperature of 90C. These cables are listed for use with
AC modules.
• The AC dedicated branch circuit wiring from the readily accessible disconnect to the AC
module array must include an equipment grounding conductor (EGC) run in the same
raceway or cable as the AC circuit conductors. This EGC must be connected to the green
colored conductor of the transition cable, which is part of the AC module interconnecting
cable system.
• The AC module interconnecting cable system provides an internal EGC for grounding the
AC modules only. Other metal structures, such as mounting systems, must be grounded
per code.
• If a module is removed from within the string, it is recommended that you bridge the
gap in the string using an AC extension cable. Inserting an extension cable maintains
ground continuity to subsequent modules in the string. See "AC Wiring Accessories" on
page 27 for a list of available extension cables. Other auxiliary grounding methods may
be used.
• The metal components of the AC module, including frame and microinverter, can reach
temperatures of approximately 80C or more under extreme environmental conditions.
To reduce risk of burns, use appropriate safety procedures when handling.
CAUTION: To reduce the risk of fire, connect only to a circuit that has a dedicated 20 amperes
maximum overcurrent protection in accordance with the National Electrical Code, ANSI/NFPA
70.
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7
Grounding in the AC Cables
The AC cable attached to the microinverter and all accessory cables are fully insulated and
contain an equipment grounding conductor (EGC). The full ground path from the transition
cable to the module frame follows:
• The transition cable's green conductor is connected to the EGC from the utility dedicated
branch circuit.
• All connectors have green ground contacts that are longer than the circuit contacts. This
extra length ensures the ground is the first to make contact when connecting modules
and the last to break contact when disconnecting modules.
• The AC ground wire inside the microinverter makes a bolted termination to the
microinverter chassis and is environmentally sealed.
• The microinverter chassis is bonded at the factory to the module frame with stainless
steel hardware to provide ground continuity to the AC PV module frame.
The AC cable grounding path has been tested by a NRTL. Before an AC module assembly can
be labeled with the NRTL certification mark and shipped from an authorized and inspected
factory, each assembly must pass a ground continuity check to verify electrical continuity from
the AC cable ground contact to the module frame.
The AC cable provides equipment grounding for the AC module only. It is the installer's
responsibility to ensure that any metallic parts in contact with the module (i.e. mounting
systems) are provided with a means of equipment grounding according to the manufacturer’s
instructions and local code.
Because the DC power is internal to the module, a grounding electrode conductor (GEC) is not
required.
Because the AC modules are connected in a “daisy chain” fashion, disconnecting one module
from within the string removes power and ground from subsequent modules in the string.
Extreme care should be taken to ensure that no other energized sources are adjacent to these
ungrounded modules, or auxiliary grounding methods must be provided.
If a module is removed from within the string, it is recommended that you bridge
the gap in the string using an AC extension cable. Inserting an extension cable
maintains ground continuity to subsequent modules in the string. See "AC Wiring
Accessories" on page 27 for a list of available extension cables. Other auxiliary
grounding methods may be used.
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9
• 16 amps /1.14 nominal current = 14 modules per branch circuit
• 1.14 x 14 modules= 15.96 amps ≤ 16 amps
Module Layout Diagram A module layout diagram is a paper model describing the configuration of the array and the
placement of each module in the array. Following the installation, this information is
recreated within the monitoring tool enabling the module owner, service providers, and
system administrators to monitor the performance of each module.
The layout diagram uses the serial number of the microinverter to identify where each module
is installed in the array.
Use the module layout template below to create a module layout diagram of your installation
site.
1. Fill in the data requested at the top of the table.
2. Before a module is installed, peel the serial number sticker from the mid-cable junction.
3. Place the sticker in the same location in the table relative to the microinverter's position
in the actual array.
4. Fill in the sheet number information at the bottom of the table.
5. When complete, use the layout diagram to recreate the array in the monitoring tool.
Table 1: Mod
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13
Module Preparation
The preparation steps described in this section apply to a large majority of the modules you will
install. Occasionally, however, situations will dictate that the cables be routed differently. Or,
your individual experiences will determine steps or cable management techniques that work
better for you or, more importantly, for your inspectors.
Before you begin preparing the modules for installation, consider the following items, which
might require changes to the cable management of one or more modules:
• Where is the junction or transition box located in relation to the module that will connect
to it?
Whether the box is located to the left or right of the array (as viewed from the ground
facing the installed array) determines which transition cable you need (male or female)
and what preparation is needed for the final module in the string. With the junction or
transition box to the left, a female transition cable is required. The final module in the
string will require an end cap be plugged into the mid-cable junction. With the junction
or transition box to the right of the array, a male transition cable is needed. The final
module will require additional cable management to secure the end of the AC cable.
Before connecting the transition cable, calculate the distance from the transition box to
the module plus the distance under the module to reach the appropriate AC connector.
This will determine the length of transition cable that you will need.
How will you manage the transition cable? If the transition box is under the module, you
might be able to use the module's cable clips to secure the transition cable to the module
frame.
NOTE: Always place cable clips at least three inches from a plug or mid-cable junction to
ensure proper stress relief.
• Do you need any extension cables? Will the extension cable reach from connector to
connector or is it necessary to modify the standard cable management of one or both
modules to make the connection easier?
How will you manage the extension cables? If the extension cables will connect two rows
of modules in the same string, use cable clips to secure the transition cable to the
module frame. Including waves or loops in the cable between clips can help manage
slack.
If the extension cable is running across open roof, another cable management system
will be needed to keep the extension cable off of the roof and protected from the sun. If
the distance to be crossed is longer than the length of the extension cable, you must
transition back to standard building wiring systems to span the distance. Use a transition
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16
Module Installation
This section describes how to lay down and interconnect AC modules on a previously installed
mounting system. No attempt is made to describe how to install the mounting system on the
roof or how to use module clamps.
Before installing the mounting system, ensure that mounting rails will be positioned below the
microinverter once the module is installed. The microinverter extends beyond the edge of the
frame of most modules. Do not install modules with the microinverter resting on the mounting
rail.
The frame of the installed module must rest firmly on the mounting rail.
Installing a module with the microinverter resting on the rail and uneven
contact between the frame and the rail can cause damage to the
microinverter and the module.
The metal components of the AC module, including frame and
microinverter, can reach temperatures of approximately 80℃. To reduce
risk of burns, use appropriate safety procedures when handling.
Installing the Modules The ideal installation path is to begin closest to the installed transition box and plug in each
module as you move away from the box. Depending on the configuration of your array and the
location of the transition box, this path may not be feasible. For example, in a 2-row
configuration, we recommend installing the bottom row first and working up toward the
transition box, which is likely mounted higher up the roof.
The following diagram shows two installed modules as viewed from the bottom or underside of
the module.
1.
2.
3.
. Connect t
local stan
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instructio
. Plug the t
latch.
the transition
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17
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18
4. Install the second module.
5. Reach under the top edge of the first module and plug in the AC cable from new module.
Close the latch.
NOTE: For end- or edge-mount racking systems, it might be necessary to lift the top of
the module slightly above the frame to reach the plug.
6. Repeat steps 4 and 5 until you reach the end of the row.
See "Module Preparation" on page 13 for information on preparing the final module in
the string.
If the string will continue to another row, then an extension cable is needed. Plug the
extension cable into the current module and place it in the general vicinity of where the
next module will be installed. Use appropriate cable management strategies to secure
the extension cable.
NOTE: For rail mount systems, lay the extension cable over the rails on which the next
module will be installed. This ensures that the cable remains under the module for
protection from the sun and uses the rails to keep the cable off the roof surface. Once
the module is installed, you can also secure the cable to the module frame with cable
clips, if necessary.
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hree-line
s appendix in
• Single-ph
• Three-pha
ngle-Phatable below
t page. Locat
Typic
Powe
conne
Inver
Direct
servic
Suppl
Typi
minim
distan
Trans
Exter
(supp
NOTE
the PV
Groun
The A
respo
are p
and lo
In are
modu
fasten
conne
NOTE
Failur
Typic
system
e Diagra
ncludes the fo
ase 240V for
ase 208V for
ase 240 Vcontains info
te the numbe
al Wire Type:
er Manager is c
ected to a NEM
ter output circ
t to service en
ce entrance pa
lied by installa
cal Wire Type
mum 12Awg bu
nce.
sient voltage s
ior-rated elect
plied by installa
E: Check with
V array
nding lugs and
AC cable provi
onsibility to ens
rovided with a
ocal code.
eas subject to
ule frame and
ners approved
ected directly
E: Do not run t
re to provide p
al Wire Type:
m. If the grou
am
ollowing thre
r residential
r light comme
V Diagramormation and
ered callouts
THWN or THW
connected dire
MA 5-15 single
cuit:
ntrance panel
anel.
ation company
e: Depends on
ut may be larg
surge suppress
trical work box
ation contract
the AHJ for re
d external gro
des equipmen
sure that any
a means of eq
lightning, it is
the racking to
d for grounding
to the ground
this conductor
proper ground
Green insulat
und wire is ext
24
ee-line diagra
installations
ercial installa
m d installer no
s in the diagr
WN-2
ectly to the se
e receptacle o
(as shown) or
y as part of Ba
wiring metho
ger due to tem
sor recommen
x with distribu
tor).
equirements fo
und wires:
nt grounding fo
metallic parts
uipment grou
s recommende
o bond all met
g PV module f
d electrode usi
r in the condu
ding can void e
ted wire size m
ternal, use a m
ams for insta
ations
otes relevant
ram.
ervice panel. O
outlet wired dir
r to a sub-pan
alance of Syste
od to array. Siz
mperature dera
nded for sites
ution block or t
or a separate A
or the AC mod
in contact wit
nding accordin
ed to provide
tal together. T
frames. The e
ng a suitably
it with the EG
equipment wa
must be no sm
minimum 6 AW
w
alling AC mod
t to the 3-line
Optionally, the
rectly to the s
nel off a highe
em (BOS) com
ze for 20 amp
ating in condu
subject to ligh
terminal strip
AC disconnect
dule only. It is
th the module
ng to the man
auxiliary grou
This can be do
ntire array str
sized copper c
GC or AC powe
rranty in the c
maller than larg
WG per NEC or
www.etsolar.c
dules.
e drawing on
Power Manag
ervice panel.
r rated breake
mponents.
p dedicated bra
it or voltage d
htning.
rated for 240
t to be installe
s the installer's
(i.e. mounting
nufacturer’s in
nding betwee
ne with straps
ructure should
conductor.
er conductors.
case of lightni
gest conducto
r CEC.
com
n the
ger can be
er in the
anch:
rop due to
VAC 20A
ed next to
s
g systems)
structions
n the AC
s or
d then be
ng strike.
r in the PV
ThThe
next
NO
to t
AC Mo
(EGC)
as an
Plug a
ree Phastable below
t page. Locat
OTE: This micro
two of the thre
Typic
Powe
Inver
Direct
servic
Suppl
Typi
minim
due to
Trans
odule Intercon
) integrated in
NEC disconne
and Play lockin
se 208 V contains info
te the numbe
oinverter is a
ee phases. Th
al Wire Type:
er Manager is c
ter output circ
t to service en
ce entrance pa
lied by installa
cal Wire Type
mum 12Awg b
o distance.
sient voltage s
nnecting Cable
nto the AC mod
ect device.
ng connectors
Diagramormation and
ered callouts
single phase d
herefore, use d
THWN or THW
connected dire
cuit:
ntrance panel (
anel.
ation company
e: Depends on
ut may be larg
surge suppress
25
es: Exterior-ra
dule. Cables a
s require cable
m d installer no
s in the diagr
device that ca
double pole br
WN-2
ectly to the se
(as shown) or
y as part of Ba
wiring metho
ger due to tem
sor recommen
ated AC cable
are rated for d
e release tool t
otes relevant
ram.
n be connecte
reakers at the
ervice panel.
to a sub-pane
alance of Syste
od to array. Siz
mperature der
nded for sites
w
with equipme
isconnect und
to disconnect.
t to the 3-line
ed to a 3-phas
service panel
el off a higher r
em (BOS) com
ze for 20 amp
ating in condu
subject to ligh
www.etsolar.c
ent grounding
er load and ca
.
e drawing on
se service by w
l or sub-panel
rated breaker
mponents.
p dedicated bra
uit or voltage d
htning.
com
conductor
an be used
n the
wiring
.
in the
anch:
drop
Exter
208 V
Groun
The A
respo
system
instru
In are
AC m
fasten
be co
AC Mo
condu
and c
Plug a
ior-rated elect
VAC 20A (supp
nding lugs and
AC cable provi
onsibility to en
ms) are provid
uctions and loc
eas subject to
odule frame a
ners approved
onnected direc
odule Intercon
uctor (EGC) in
can be used as
and Play lockin
trical work box
plied by install
d external gro
des equipmen
sure that any
ded with a mea
cal code.
lightning, it is
and the racking
d for grounding
ctly to the grou
nnecting Cable
ntegrated into
s an NEC disco
ng connectors
26
x with distribu
ation contract
und wires:
nt grounding fo
metallic parts
ans of equipm
s recommende
g to bond all m
g PV module f
und electrode
es: Exterior-ra
the AC modul
onnect device
s require conn
ution block or t
tor).
or the AC mod
s in contact wi
ment grounding
ed to provide
metal together
frames. The e
using a suitab
ated AC cable
le. Cables are
.
ector release
w
terminal strip
dule only. It is
ith the module
g according to
auxiliary grou
r. This can be
ntire array str
bly sized copp
with equipme
rated for disc
tool to discon
www.etsolar.c
minimally rate
s the installer's
e (i.e. mountin
the manufact
nding betwee
done with stra
ructure should
per conductor.
ent grounding
connect under
nect.
com
ed for
s
ng
turer’s
n the
aps or
d then
load
AC
The
enco
Part
Stan
Cable
90-D
Cable
Latch
End
Fema
Cap
C Wiring
following AC
ounter.
t Name M
dard
e Clip
ET
Degree
e Clip
ET
h Male
Cap E
ale End ET
g Acces
C wiring acce
Model Numbe
T-AC-CCS
T-AC-CCA
ET-AC-ECM
T-AC-ECF
ssories
essories are a
er
27
available to a
assist in any
Descript
• At
m
ca
• Av
• At
m
ca
ed
• Av
• Co
co
pr
ca
• Av
• Co
co
pr
ca
• Av
w
array config
tion
ttaches to the
module frame a
able parallel to
vailable in box
ttaches to the
module frame a
able perpendic
dge.
vailable in box
overs the fem
onnector at th
rotect the AC
able from dirt
vailable in box
overs the latc
onnector at th
rotect the AC
able from dirt
vailable in box
www.etsolar.c
uration you
e edge of the
and holds the
o the frame ed
xes of 500.
e edge of the
and holds the
cular to the fra
xes of 500.
male cable
e end of a stri
interconnectin
and moisture
xes of 250.
h male cable
e end of a stri
interconnectin
and moisture
xes of 250.
com
will
AC
dge.
AC
ame
ng to
ng
.
ng to
ng
.
Part
Tran
Cable
1ReABC
t Name M
nsition
e ET
ET
ET
ET
ference to LC phases fo
Model Numbe
T-TCF-5
T-TCF-10
T-TCM-5
T-TCM-10
L1 and L2 idor 208 V (Se
er
dentifies twee "Three-line
28
wo phases ofe Diagram" ).
Descript
• Fe
en
on
• 20
N
• Av
• Ea
ca
• La
on
w
• 20
N
• Av
• Ea
ca
f a 240 V sp
w
tion
emale cable co
nd and 100 mm
n the other.
0A, exterior-ra
, and Ground1
vailable in 5' a
ach cable is sh
able release to
atch male cab
ne end and 10
wires on the ot
0A, exterior-ra
, and Ground1
vailable in 5' a
ach cable is sh
able release to
plit phase or
www.etsolar.c
onnector on o
m of stripped
ated 4-wire (L11) cable.
and 10' length
hipped with on
ool.
ble connector o
00 mm of strip
ther.
ated 4-wire (L11) cable.
and 10' length
hipped with on
ool.
r any two of
com
one
wires
1, L2,
hs.
ne
on
pped
1, L2,
hs.
ne
f the
Part
Exte
Cable
t Name M
nsion
e
ET
ET
ET
ET
ET
ET
Model Numbe
T-ECMF-5
T-ECMF-10
T-ECMM-5
T-ECMM-10
T-ECFF-5
T-ECFF-10
er
29
Descript
• Fe
en
co
• 20
N
• Av
• L
co
• 20
N
• Av
• Fe
en
• 20
N
• Av
w
tion
emale cable co
nd and latch m
onnector on th
0A, exterior-ra
, and Ground1
vailable in 5' a
Latch male int
onnectors on b
0A, exterior-ra
, and Ground1
vailable in 5' a
emale cable co
nds.
0A, exterior-ra
, and Ground1
vailable in 5' a
www.etsolar.c
onnector on o
male cable
he other.
ated 4-wire (L11) cable.
and 10' length
terconnecting
both ends.
ated 4-wire (L11) cable.
and 10' length
onnectors on
ated 4-wire (L11) cable.
and 10' length
com
one
1, L2,
hs.
cable
1, L2,
hs.
both
1, L2,
hs.
Part
Cab
Conv
Kit
Cab
Conv
Kit
t Name M
le
version
ET
le
version
ET
Model Numbe
T ACK-01
T ACK-02
er
30
Descript
Use this k
modules.
• 9
ca
la
ot
• 1
ca
m
• O
ca
Use this k
• 9
ca
la
ot
• 2
ca
m
• O
ca
w
tion
kit with high-e
9" conversion
able receptacle
atch male cabl
ther end.
1" conversion
able connecto
male cable plug
One disconnect
able type.
kit with standa
9" conversion
able receptacle
atch male cabl
ther end.
1" conversion
able connecto
male cable plug
One disconnect
able type.
www.etsolar.c
efficiency solar
cable with fem
e on one end
e connector o
cable with fem
r on one end
g on the other
t tool for each
ard solar mod
cable with fem
e on one end
e connector o
cable with fem
r on one end
g on the other
t tool for each
com
r
male
and
n the
male
and
r end.
ules.
male
and
n the
male
and
r end.
www.etsolar.com
31
Technical Specifications
Parameter 208V 240V
Peak Power (Pmax) 250W
Module Efficiency 15.37%
Maximum Power Voltage (Vmp) 30.02V
Maximum Power Current (Imp) 8.33A
Open Circuit Voltage (Voc) 37.58V
Short Circuit Current (Isc) 8.98A
Power Tolerance ±3%
Maximum System Voltage DC1000V
Normal Operating Cell Temperature 45.3±2℃
Temp. Coeff. Of Pmax -0.43%/℃
Output power factor rating 0.99 0.99
Operating voltage range (ac) (L-L) 2 183-229 V 211 – 264 V
Operating frequency range or single frequency1 59.3 - 60.5 Hz 59.3 - 60.5 Hz
Number of phases 13 14
Nominal output voltage (ac) 208 V 240 V
Normal output frequency 60 Hz 60 Hz
Maximum continuous output current (ac) 1.14 A5 0.992 A4
Maximum output power (ac) 238 W 238 W
Utility interconnection voltage and frequency trip limits and trip times See "Utility Interaction" on page 33
Total Demand Distortion (TDD) /Individual harmonics (per IEEE 1547) < 5%
(Passed up to 40th harmonic)
2See "Utility Interaction" 3Single-phase device requiring two of the phases (L1 and L2, L2 and L3, or L1 and L3) for power production along with a neutral for voltage sensing only, per IEEE 1547. 4Single-phase device requiring two of the phases (L1 and L2) for power production along with a neutral for voltage sensing only, per IEEE 1547. 5Maximum overload current at peak module performance combined with low grid voltage is 1.31A for 208 V and 1.25A for 240 V.
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32
Parameter 208V 240V
Maximum units per 2-pole 20 amp dedicated branch circuit 145 166
Maximum output fault current (ac) and duration 11.9 Apk, 0.31 Arms, total duration
1.2 ms
Maximum output overcurrent protection 20 A5 20 A5
Dimension 1640x992x57.5mm
64.57x39.06x2.26 inch
Weight
21.59kg
47.59 lbs
Cooling Natural Convection/No Fans
Protection Level IP 65(NEMA 6)
6This is the maximum number of microinverters that can be connected in parallel to a single dedicated branch circuit, which is protected by a 2-pole circuit breaker rated at 20 A. This number is derived based on the requirements of the National Electrical Code (NEC) and the current rating of the microinverter. If more microinverters than this number need to be installed, additional 20-A branches shall be used, keeping the number of microinverters on each branch less or equal to this number.
Uti
a - N
b - N
c - Tr
ility Inter
on-adjustable m
ominal voltage
rip limit accurac
raction
maximum clearin
equals 120V ph
cy: Voltage - ±2
ng times
hase to neutral
2.5% based on 1
33
120V nominal, f
frequency- ±0.1
w
1 Hz
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com
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