Q U I C K I N S T A L L G U I D E
Installing Breakers in the Enphase
IQ Combiner+ and IQ Combiner 3
To install additional breakers in the Enphase IQ Combiner+™ or the Enphase IQ Combiner 3™, read and follow all warnings and instructions in this Guide. If
you do not fully understand any of the concepts, terminology, or hazards outlined in these instructions, refer installation to a qualified electrician or installer.
These instructions are not meant to be a complete explanation of a renewable energy system. All installations must comply with national and local electrical
codes. Professional installation is recommended.
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This guide contains important instructions that you must follow during
installation of additional breakers in the IQ Combiner+.
Safety Instructions
DANGER: Risk of electric shock. Risk of fire. Do not attempt to repair the
Enphase IQ Envoy™; it contains no user-serviceable parts. Tampering
with or opening the IQ Envoy will void the warranty. Warranty void if cover
removed. If the IQ Envoy fails, contact Enphase Customer Support for
assistance (enphase.com/en-us/support/contact).
DANGER: Risk of electric shock. Do not use Enphase 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 IQ Combiner
without first removing AC power from the Enphase System. Ensure the
power coming from the microinverters is de-energized before servicing
or installing.
DANGER: Risk of electric shock. Risk of fire. Only qualified personnel
should troubleshoot, install, or add parts to the Combiner.
DANGER: Risk of electric shock. Improper servicing of the combiner
box or its components may result in a risk of shock, fire or explosion. To
reduce these risks, disconnect all wiring before attempting any mainte-
nance or cleaning.
DANGER: Risk of electric shock. Always de-energize the AC branch
circuit before servicing. While connectors are rated for disconnect under
load, it is a best practice to de-energize before disconnecting.
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. Ensure that all wiring is
correct and that none of the wires are pinched or damaged.
DANGER: Risk of electric shock. Risk of fire. Do not work alone. Someone
should be in the range of your voice or close enough to come to your aid
when you work with or near electrical equipment. Remove rings, brace-
lets, necklaces, watches etc. when working with batteries, photovoltaic
modules or other electrical equipment.
DANGER: Risk of electric shock. Risk of fire. Before making any connec-
tions verify that the circuit breakers are in the off position. Double check
all wiring before applying power.
© 2018 Enphase Energy. All rights reserved.
Enphase Customer Support: enphase.com/en-us/support/contact
Safety and Advisory Symbols
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.
✓
NOTE: This indicates information particularly important for optimal
system operation. Follow instructions carefully.
⚠
WARNING: Before installing or using the Combiner, read all instructions
and cautionary markings in the technical description and on the equip-
ment.
⚠
WARNING: Use the circuit breakers in the Enphase Combiner only for
serving Enphase equipment. No other loads are allowed.
⚠
WARNING: This unit is not provided with a GFDI device.
⚠
WARNING: This product is intended for operation in an environment
having a maximum ambient temperature of 46ºC (115ºF).
✓
NOTE: Perform all wiring in accordance with all applicable local electrical
codes, with the Canadian Electrical Code, Part I, and with the National
Electrical Code (NEC), ANSI/NFPA 70.
✓
NOTE: Protection against lightning and resulting voltage surge must be
in accordance with local standards.
✓
NOTE: Using unapproved attachments or accessories could result in
damage or injury.
✓
NOTE: Install the Combiner in the field with 75°C or higher copper
conductors sized per local code requirements and voltage drop/rise
considerations.
✓
NOTE: Use Class 1 wiring methods for field wiring connections to terminals
of a Class 2 circuit. Use 14 to 6 AWG wire for branch circuits and 14 to 3
AWG for output circuits. Select the wire gauge used based on the protec-
tion provided by the circuit breakers/fuses. Overcurrent protection must be
installed as part of the system installation.
✓
NOTE: To ensure optimal reliability and to meet warranty requirements,
the Enphase Combiner must be installed according to the instructions in
the installation manual.
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