MAXEON
SOLAR
TECHNOLOGIES,
LTD.
537620
Rev.B
©2021
Maxeon
Solar
Technologies,
Ltd.
All
rights
reserved.
Specifications
included
in
this
document
are
subject
to
change
without
notice.
4
Maxeon
Solar
Technologies
recommends
a
conservative
minimum
cable
bend
radius
of
equal
to
or
greater
than
60mm
and
must
not
be
bent
on
the
direct
exit
of
the
connector
or
junction
box.
The
AC
Module
cable
system
features
locking
connectors
which,
after
connected,
require
the
use
of
a
tool
to
disconnect.
This
defends
against
untrained
personnel
disconnecting
the
modules
when
under
load.
Enphase
AC
cable
connectors
are
rated
and
tested
to
interrupt
load
current;
however,
Maxeon
Solar
Technologies
recommends
that
you
always
open
the
utility
dedicated
branch
circuit
protector
to
remove
power
before
plugging
or
unplugging
any
connectors;
install
an
AC
isolator
in
accordance
with
local
codes.
4.1
Equipment
Grounding
Module
grounding
is
required
as
per
IEC
60364
‐
7
‐
712
and
where
deemed
mandatory
within
the
local
regulatory
framework.
The
purpose
of
the
module
grounding
is
both
for
protection
and
functional
reasons.
The
functional
aspect
of
this
requirement
is
to
enable
the
Inverter
or
power
conditioning
device
to
provide
earth
fault
detection
and
any
alarm
indication.
Maxeon
Solar
Technologies
recommends
using
one
of
the
following
methods
of
grounding
the
module
frame.
In
addition,
to
avoid
corrosion
due
to
dissimilar
metal
interfaces,
Maxeon
Solar
Technologies
recommends
stainless
steel
hardware
between
copper
and
aluminum.
Testing
should
be
done
to
validate
grounding
with
temperature,
salt
environment
and
high
current.
1)
Grounding
using
specified
grounding
holes:
Use
the
mounting
frame
provisioned
grounding
holes
for
connecting
the
module
to
the
racking
with
a
suitably
sized
earthing
conductor.
2)
Grounding
with
clamp
/
claw:
Clamp
or
claw
can
be
installed
between
the
module
and
racking
system.
Align
a
grounding
clamp
to
the
frame
hole,
and
place
a
grounding
bolt
through
the
grounding
clamp
and
frame.
Ensure
the
clamp
used
when
is
fastened,
will
effectively
pierce
the
anodized
coating
of
the
module
and
ensure
suitable
conductivity.
3)
Modules
may
be
grounded
by
attaching
a
lay
‐
in
lug
to
one
of
the
grounding
holes
on
the
module
frame,
and
attach
the
ground
conductor
to
the
lug.
Use
stainless
steel
hardware
(bolt,
washers,
and
nut).
Use
an
external
‐
tooth
star
washer
between
the
lug
and
the
module
frame
in
order
to
pierce
the
anodizing
and
establish
electrical
contact
with
the
aluminum
frame.
The
assembly
must
end
with
a
nut
that’s
torqued
to
2.3
‐
2.8
Nm
(for
a
M4
bolt).
A
lock
washer
or
other
locking
mechanism
is
required
to
maintain
tension
between
the
bolt
and
the
assembly.
The
conductor
must
be
attached
to
the
ground
lug
using
the
lug’s
set
screw.
4)
Modules
may
be
grounded
using
a
ground
clip
or
ground
washer
or
as
part
of
a
module
clamp.
These
grounding
clips/washers
must
be
able
to
effectively
pierce
the
anodized
coating
of
the
module
frame
and
establish
suitable
electrical
conductivity.
All
above
solutions
are
possible
but
should
be
tested
with
the
mounting
structure
for
grounding
purpose.
4.2
Connection
to
AC
Circuits
It
is
the
installer’s
responsibility
to
verify
grid
compatibility
(240/380
or
4
‐
wire
2
‐
pole).
Maxeon
Solar
AC
modules
must
be
connected
to
a
utility
source
at
the
correct
voltage
and
frequency
in
order
to
operate
and
produce
power.
They
are
not
standalone
generators
and
do
not
create
AC
voltage
thus
are
not
capable
of
operation
independent
of
a
utility
‐
generated
AC
signal.
The
AC
Modules
must
be
connected
only
to
a
dedicated
branch
circuit.
The
AC
cables
and
connectors
are
certified
and
rated
for
the
maximum
number
of
AC
units
in
parallel
only.
When
connecting
modules,
DO
NOT
exceed
the
following
single
AC
branch
circuit
maximum
number
of
modules.
The
maximum
number
of
microinverters
that
can
be
installed
on
each
AC
branch
circuit
can
be
found
in
the
Product's
datasheet.
This
circuit
must
be
protected
by
overcurrent
protection.
Plan
your
AC
branch
circuits
to
meet
the
following
limits
for
maximum
number
of
AC
Module
per
branch
when
protected
with
a
20
amp
(maximum)
over
current
protection
device.
Maximum*
IQ
7A
Micros
per
AC
branch
circuit
(240
VAC)
Region:
EU
Maximum*
IQ
7A
Micros
per
AC
branch
circuit
(230
VAC)
Region:
APAC
10
11
Limits
may
vary.
Refer
to
local
requirements
to
define
the
number
of
microinverters
per
branch
in
your
area.
CAUTION!
To
reduce
the
risk
of
fire,
connect
only
to
a
circuit
provided
with
20
A
maximum
branch
circuit
overcurrent
protection.
Below
are
the
major
installation
step:
1.
Install
the
Field
‐
wireable
connector
pair,
optional
J
‐
Box
2.
Position
the
Enphase
Q
Cable
Per
module:
3
Position
AC
module
and
pop
‐
out
Micro
4
Connect
microinverters
to
Q
Cable
connector
5
Install
AC
modules
6
Manage
Q
cable
to
module
frame
and
rail
Per
row:
7
Create
installation
map
8.
Terminate
Q
cable
at
last
microinverter
9.
Connect
to
J
‐
Box
10.
Energize
system
4.3
Cable
Management:
Use
cable
clips
or
tie
wraps
to
attach
the
cable
to
the
racking.
The
cable
must
be
supported
at
least
every
1.8
m.
Dress
any
excess
cabling
in
loops
so
that
it
does
not
contact
the
roof.
Do
not
form
loops
smaller
than
12
cm
in
diameter.
4.4
Microinverters
Connection
Connect
the
microinverter.
Listen
for
a
click
as
the
connectors
engage.
Cover
any
unused
connectors
on
the
AC
cable
with
Enphase
Sealing
Caps.
Listen
for
a
click
as
the
sealing
caps
engage.
CAUTION!
Install
sealing
caps
on
all
unused
AC
connectors
as
these
connectors
become
live
when
the
system
is
energized.
Sealing
caps
are
required
for
protection
against
moisture
ingress.
5.0
Module
Mounting
This
section
contains
information
for
AC
Modules.
Ensure
that
you
use
the
correct
information
for
your
module
type.
The
Maxeon
Solar
Technologies
Limited
Warranty
for
PV
Modules
is
contingent
upon
modules
being
mounted
in
accordance
with
the
requirements
described
in
this
section.
