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General Safety, continued
DANGER: Risk of electric shock. Always de-energize the
+
AC branch circuit before servicing. Never disconnect the
DC connectors under load.
DANGER: Risk of electric shock. Risk of fire. Only
+
use electrical system components approved for wet
locations.
DANGER: Risk of electric shock. Risk of fire. Only
+
qualified personnel should troubleshoot, install, or
replace Enphase Microinverters or the Enphase QD Cable
and Accessories.
DANGER: 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.
DANGER: Risk of electric shock. Risk of fire. Do not
+
exceed the maximum number of microinverters in
an AC branch circuit as listed in this guide. You must
protect each microinverter AC branch circuit with a 20A
maximum breaker or fuse, as appropriate.
DANGER: Risk of electric shock. Risk of fire. Only quali-
+
fied personnel may connect the Enphase Microinverter
to the utility grid.
WARNING: Risk of equipment damage. Enphase male and
*
female connectors must only be mated with the identical
type and brand of male/female connector. IQ8D Microin-
verter has Enphase EN4 bulkhead for DC connection and
bulkhead adapter cable for EN4 to MC4 connection.
WARNING: Before installing or using the Enphase Micro-
*
inverter, read all instructions and cautionary markings in
the technical description, on the Enphase Microinverter
System, and on the photovoltaic (PV) equipment.
WARNING: Do not connect Enphase Microinverters to
*
the grid or energize the AC circuit(s) until you have com-
pleted all of the installation procedures and have received
prior approval from the electrical utility company.
WARNING: PV Rapid Shutdown must be installed and
*
operational including activation device and required
markings. See complete details in installation manual.
WARNING: To enable installed system to comply as a
*
Photovoltaic Hazard Control System (PVHCS) installers
shall at a minimum perform the tasks mentioned in
Appendix Section "Photovoltaic Hazard Control System"
in "Commercial PV Design Guide IQ8D Microinverter
System" at enphase.com/support
General Safety, continued
DANGER: Risk of electric shock. Always de-energize the
+
AC branch circuit before servicing. Never disconnect the
DC connectors under load.
WARNING: When the PV array is exposed to light, DC
*
voltage is supplied to the PCE.
✓
NOTE: To ensure optimal reliability and to meet warranty
requirements, install the Enphase Microinverters and
Enphase QD Cable according to the instructions in this
guide.
✓
NOTE: Provide support for the Enphase QD Cable at least
every 1.4 m (4.5 feet).
✓
NOTE: Perform all electrical installations in accordance
with all applicable local electrical codes, such as the
Canadian Electrical Code, Part 1 and NFPA 70 (NEC).
✓
NOTE: Protection against lightning and resulting voltage
surge must be in accordance with local standards.
Enphase Customer Support: enphase.com/en-us/support/contact
Microinverter Safety
DANGER: Risk of electric shock. Risk of fire. Do not
+
attempt to repair the Enphase Microinverter; it contains
no user-serviceable parts. If it fails, contact Enphase
customer service to obtain an RMA (return merchandise
authorization) number and start the replacement
process. Tampering with or opening the Enphase
Microinverter will void the warranty.
DANGER: Risk of fire. The DC conductors of the PV
+
module must be labeled "PV Wire" or "PV Cable" when
paired with the Enphase Microinverter.
WARNING: You must match the DC operating 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 specified maximum input
DC voltage of the Enphase Microinverter.
WARNING: The maximum DC input voltage that is
*
allowed to each inverter under any circumstance is
119V DC.
WARNING: Risk of equipment damage. Install the
*
microinverter under the PV module to avoid direct
exposure to rain, UV, and other harmful weather events.
Always install the microinverter bracket side up. Do not
mount the microinverter upside down. Do not expose
the AC or DC connectors (on the Enphase QD Cable
connection, PV module, or the microinverter) to rain or
condensation before mating the connectors.
WARNING: Risk of equipment damage. The Enphase Mi-
*
croinverter is not protected from damage due to moisture
trapped in cabling systems. Never mate microinverters to
cables that have been left disconnected and exposed to
wet conditions. This voids the Enphase warranty.
Microinverter Safety, continued
WARNING: Risk of equipment damage. The Enphase
*
Microinverter functions only with a standard, compatible
PV module with appropriate fill-factor, voltage, and current
ratings. Unsupported devices include smart PV modules,
fuel cells, wind or water turbines, DC generators, and
non-Enphase batteries, etc. These devices do not behave
like standard PV modules, so operation and compliance
is not guaranteed. These devices may also damage the
Enphase Microinverter by exceeding its electrical rating,
making the system potentially unsafe.
;
WARNING: Risk of skin burn. The chassis of the Enphase
Microinverter is the heat sink. Under normal operating
conditions, the temperature could be 20°C above
ambient, but under extreme conditions the microinverter
can reach a temperature of 90°C. To reduce risk of burns,
use caution when working with microinverters.
✓
NOTE: The Enphase Microinverter has field-adjustable
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.
Enphase QD Cable Safety
DANGER: Risk of electric shock. Do not install
+
the Enphase QD Cable terminator while power is
connected.
DANGER: Risk of electric shock. Risk of fire. When
+
stripping the sheath from the Enphase QD Cable, make
sure the conductors are not damaged. If the exposed
wires are damaged, the system may not function
properly.
DANGER: Risk of electric shock. Risk of fire. Do
+
not leave AC connectors on the Enphase QD Cable
uncovered for an extended period. You must cover any
unused connector with a sealing cap.
DANGER: 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.
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
mechanism is defective, do not use the terminator. Do not
circumvent or manipulate the latching mechanism.
WARNING: When installing the Enphase QD Cable,
*
secure any loose cable to minimize tripping hazard
✓
NOTE: When looping the Enphase QD Cable, do
not form loops smaller than 12 cm (4.75 inches) in
diameter.
✓
NOTE: If you need to remove a sealing cap, you must
use the Enphase disconnect tool.
✓
NOTE: When installing the Enphase QD Cable and
accessories, adhere to the following:
• Do not expose the terminator or cable connections to
directed, pressurized liquid (water jets, etc.).
• Do not expose the terminator or cable connections to
continuous immersion.
• Do not expose the terminator 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 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 contact with
open flame.
• Fit the terminator using only the prescribed tools and in
the prescribed manner.
• Use the terminator to seal the conductor end of the
Enphase QD Cable; no other method is allowed.
© 2022 Enphase Energy. All rights reserved. Enphase, the
Enphase logo, Enphase IQ8D, Enphase Installer Platform,
Enphase Installer App, Enphase IQ8D Commercial
Gateway, and other trademarks or service names are
the trademarks of Enphase Energy, Inc. Data subject to
change. Rev02-01-06-2022.
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