SAFETY
IMPORTANT SAFETY INSTRUCTIONS.
SAVE THIS INFORMATION.
This guide contains important instructions to follow during
installation of the Enphase S280 and S230 Microinverter
.
Microinverter Safety
;
WARNING
: Risk of skin burn. The body of the
Enphase Microinverter is the heat sink. Under
normal operating conditions, the temperature
is 20°C above ambient, but under extreme
conditions the microinverter can reach a tem-
perature of 90°C. To reduce risk of burns, use
caution when working with microinverters.
+
WARNING
: Risk of electric shock. Risk of fire. If
the AC cable on the microinverter is damaged,
do not install the microinverter.
+
WARNING
: Risk of electric shock. Risk of fire.
Do not attempt to repair the Enphase Microin-
verter; it contains no user-serviceable parts. If
it fails, contact Enphase customer service to
obtain an RMA (return merchandise authori-
zation) number and start the replacement pro-
cess. Tampering with or opening the Enphase
Microinverter will void the warranty.
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WARNING
: Risk of equipment damage. The S230
and S280 may be paired only with 60-cell PV
modules.
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WARNING
: Risk of fire. The DC conductors of
the PV module must be labeled “PV Wire” or
“PV Cable” when paired with the S230 or S280
Microinverters.
+
WARNING
: You must match the DC operat-
ing voltage range of the PV module with the
allowable input voltage range of the Enphase
Microinverter.
+
WARNING
: The maximum open circuit voltage
of the PV module must not exceed the speci-
fied maximum input DC voltage of the Enphase
Microinverter.
+
WARNING
: Risk of equipment damage. The mi-
croinverter must be installed under the module,
out of rain and sun. Do not mount the microin-
verter in a position that allows long-term expo-
sure to direct sunlight or in a vertical orientation
that allows water to collect in the DC connector
recess. Do not install the microinverter vertically
with the DC connectors facing up.
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WARNING
: Risk of electric shock. Risk of fire. Be
aware that only qualified personnel may connect
the Enphase Microinverter to the utility grid.
Microinverter Safety, continued
✓
NOTE
: The Enphase Microinverter has field-ad-
justable voltage and frequency trip points that
may need to be set, depending upon local
requirements. Only an authorized installer with the
permission and following requirements of the local
electrical authorities should make adjustments.
✓
NOTE
: The Enphase Microinverter operates with
single-phase or three-phase electrical service.
Engage Cable and Accessory Safety
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DANGER
: Risk of electric shock. Do not install
the Engage Cable terminator cap while power
is connected.
+
WARNING
: Risk of electric shock. Risk of fire.
When stripping the sheath from the Engage
Cable, make sure the conductors are not dam-
aged. If the exposed wires are damaged, the
system may not function properly.
+
WARNING
: Risk of electric shock. Risk of fire.
Do not leave AC connectors on the Engage
Cable uncovered for an extended period. If you
do not replace the microinverter immediately,
you must cover any unused connector with a
sealing cap. Do not reuse sealing caps.
+
WARNING
: Risk of electric shock. Risk of fire.
Make sure protective sealing caps have been
installed on all unused AC connectors. Unused
AC connectors are live when the system is
energized. Do not reuse sealing caps.
*
WARNING
: Use the terminator only once. If
you open the terminator following installation,
the latching mechanism is destroyed. Do not
reuse the terminator. If the latching mecha-
nism is defective, do not use the terminator.
Do not circumvent or manipulate the latching
mechanism.
*
CAUTION
: When installing the Engage Cable,
secure any loose cable to minimize tripping
hazard
✓
NOTE
: Check the labeling on the Engage Cable
drop connectors to be sure that the cable match-
es the electrical service at the site. Use 208 VAC
(208 VAC three-phase) Engage Cable at sites with
three-phase 208 VAC service, or use 240 VAC
Engage Cable at sites with 240 VAC single-phase
service.
✓
NOTE
: There are two release-holes in the drop
connector on the cable. These are not for mount-
ing but are used to disconnect the connector.
Keep these release holes clear and accessible.
✓
NOTE
: When looping the Engage Cable, do not
form loops smaller than 4.75 inches (12 cm) in
diameter.
✓
NOTE
: If you need to remove a sealing cap, you
must use the Enphase disconnect tool or a #3
Phillips screwdriver. Do not reuse sealing caps.
✓
NOTE
: When installing the Engage Cable and
accessories, adhere to the following:
• Do not expose the terminator cap or cable con-
nections to directed, pressurized liquid (water
jets, etc.).
• Do not expose the terminator cap or cable
connections to continuous immersion.
• Do not expose the terminator cap or cable
connections to continuous tension (e.g., tension
due to pulling or bending the cable near the
connection).
• Use only the connectors and cables provided.
• Do not allow contamination or debris in the
connectors.
• Use the terminator cap and cable connections
only when all parts are present and intact.
• Do not install or use in potentially explosive
environments.
• Do not allow the terminator to come into con-
tact with open flame.
• Make sure that all terminator cap seals are
seated correctly in the wire organizer.
• Fit the terminator cap using only the prescribed
tools and in the prescribed manner.
• Use the terminator to seal the conductor end of
the Engage Cable; no other method is allowed.
✓
NOTE
: Do not use the shipping cap to cover
unused connectors. The shipping cap does
not provide an adequate environmental seal.
Enphase sealing caps are required to protect
against moisture ingress.
Safety Symbols
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DANGER
! This indicates a hazardous situation,
which if not avoided, will result in death or
serious injury.
*
WARNING
! This indicates a situation where
failure to follow instructions may be a safety
hazard or cause equipment malfunction.
Use extreme caution and follow instructions
carefully.
;
WARNING
! This indicates a situation where
failure to follow instructions may result in burn
injury.
✓
NOTE
: This indicates information particularly
important for optimal system operation.
General Safety
+
DANGER
: Before installing or using the En-
phase Microinverter, read all instructions and
cautionary markings in the technical descrip-
tion, on the Enphase Microinverter System, and
on the photovoltaic (PV) equipment.
+
DANGER
: Risk of electric shock. Do not use En-
phase equipment in a manner not specified by
the manufacturer. Doing so may cause death or
injury to persons, or damage to equipment.
+
DANGER
: Risk of electric shock. Be aware that
installation of this equipment includes risk of
electric shock. Do not install the AC junction
box without first removing AC power from the
Enphase System.
+
DANGER
: Risk of electric shock. The DC
conductors of this photovoltaic system are
ungrounded and may be energized.
+
WARNING
: Risk of electric shock. Always de-en-
ergize the AC branch circuit before servicing.
Never disconnect the DC connectors under load.
General Safety, continued
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WARNING
: Risk of electric shock. Risk of
fire. Only use electrical system components
approved for wet locations.
+
WARNING
: Risk of electric shock. Risk of fire.
Only qualified personnel should troubleshoot,
install, or replace Enphase Microinverters or the
Engage Cable and Accessories.
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WARNING
: Risk of electric shock. Risk of fire.
Ensure that all AC and DC wiring is correct and
that none of the AC or DC wires are pinched or
damaged. Ensure that all AC junction boxes are
properly closed.
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WARNING
: Risk of electric shock. Risk of fire.
Do not exceed the maximum number of mi-
croinverters in an AC branch circuit as listed in
this guide. You must protect each microinverter
AC branch circuit with a 20A maximum breaker.
*
WARNING
: Do not connect Enphase Microin-
verters to the grid or energize the AC circuit(s)
until you have completed all of the installation
procedures and have received prior approval
from the electrical utility company.
✓
NOTE
: To ensure optimal reliability and to meet
warranty requirements, install the Enphase
Microinverters and Engage Cable according to
the instructions in this guide.
✓
NOTE
: Perform all electrical installations in
accordance with all applicable local electrical
codes and the National Electrical Code (NEC),
ANSI/NFPA 70.
✓
NOTE
: The AC and DC connectors on the ca-
bling are rated as a disconnect only when used
with an Enphase Microinverter.
✓
NOTE
: Protection against lightning and result-
ing voltage surge must be in accordance with
local standards.
✓
NOTE
: Many PV modules have a central
stiffening brace. In these cases, do
not
position
the connector and microinverter at the exact
center of the PV module. Instead, position the
drop connectors so that the connectors do not
conflict with the braces.
✓
NOTE
: Completely install all microinverters and
all system AC connections prior to installing the
PV modules.
WARNING
: Hot surface.
WARNING
: Refer to safety instructions.
DANGER
: Risk of electric shock.
Refer to manual
PV Rapid Shutdown Equipment
(PVRSE)
This product is UL Listed as PV Rapid Shut Down
Equipment and conforms with NEC-2014 and NEC-
2017 section 690.12 and C22.1-2015 Rule 64-218
Rapid Shutdown of PV Systems, for AC and DC
conductors, when installed according to the following
requirements:
• Microinverters and all DC connections must be
installed inside the array boundary.
Enphase further
requires that the microinverters and DC connec-
tions be installed under the PV module to avoid
direct exposure to rain, UV, and other harmful
weather events
.
• The array boundary is defined as 305 mm (1 ft.) from
the array in all directions, or 1 m (3 ft.) form the point
of entry inside a building.
This rapid shutdown system must be provided with an
initiating device and (or with) status indicator which
must be installed in a location accessible to first
responders, or be connected to an automatic system
which initiates rapid shutdown upon the activation of
a system disconnect or activation of another type of
emergency system.
The initiator shall be listed and identified as a discon-
necting means that plainly indicates whether it is in the
“off” or “on” position. Examples are:
• Service disconnecting means
• PV system disconnecting means
• Readily accessible switch or circuit breaker
The handle position of a switch or circuit breaker is
suitable for use as an indicator. Refer to NEC or CSA
C22.1-2015 for more information.
Additionally, in a prominent location near the initiator
device, a placard or label must be provided with a per-
manent marking including the following wording:
’
PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID
SHUTDOWN
’ The term ‘PHOTOVOLTAIC’ may be
replaced with ‘PV.’
The placard, label, or directory shall be reflective, with
all letters capitalized and having a minimum height of
9.5 mm (3/8 in.) in white on red background.