Data Sheet
Table Of Contents
- Planning for an IQ Microinverter System
- IQ 6 and IQ 6+ Micros
- IQ 7 and IQ 7+ Micros
- IQ 7X Micros
- Q Cable and IQ Micro Accessories
- IQ System Design using the IQ Combiner
- IQ System Design using the IQ Combiner+ and IQ Combiner 3
- IQ System Design with Q Aggregator
- IQ Envoy Installation Options
- Field Wireable Q Connectors and Raw Q Cable
- Splicing Q Cable and Raw Q Cable with Junction Boxes
- Example IQ Microinverter System Layouts and Bill of Materials (BOMs)
- Wire Management of AC and DC Cables Under Array
- AC Wire Management at the Junction Box or Q Aggregator
- Installing IQ Microinverters with Frame Mount Bracket
- Installing the Power Line Filter (Q-LCF-064-1P)
Planning for an IQ Microinverter System
© 2018 Enphase Energy Inc. All rights reserved. December 13, 2018
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IQ Envoy Installation Options
IQ Combiner with Factory-Installed IQ Envoy
The IQ Envoy is factory-installed as part of the Enphase IQ Combiner, but in that case the Q Aggregator
circuit cannot terminate in the IQ Combiner if the total of the Q Aggregator’s microinverter output circuits
exceed 16A. The IQ Combiner with IQ Envoy contains three 20A branch circuit breakers and cannot support
larger breakers.
IQ Combiner 3 (or IQ Combiner+) with Factory-Installed IQ Envoy
The IQ Envoy is factory-installed as part of the Enphase IQ Combiner+ and IQ Combiner 3, and the Q
Aggregator may be terminated on one of the 2-pole circuit breakers (provided by the installer). See details in
the IQ System Design using the IQ Combiner+ and IQ Combiner 3 section above.
Conceptual Schematic of IQ Combiner 3 Installation with Q Aggregator
Installing the IQ Envoy in an Outdoor Enclosure with a Solar Subpanel
When planning an Enphase IQ System, which requires two or more microinverter branch circuits, and no
Enphase IQ Combiner is available to meet the system design, use the following information when designing
and installing compliant Enphase IQ Systems using alternate electrical equipment.
Using alternate electrical equipment in lieu of an Enphase IQ Combiner product is how systems were
installed prior to the availability of the IQ Combiner. This method is fully acceptable from an electrical and
code compliance perspective as an alternative to design with an IQ Combiner product. It is the qualified
installer’s responsibility to meet local codes. The following guidelines and examples illustrate how to design
and install such a system.
Design Considerations for the IQ Microinverter Systems without an IQ Combiner
To install an Enphase IQ System with two or more microinverter branch circuits without an IQ Combiner
product, you need the following electrical components:
• An AC load center from any major brand. We will call this the solar subpanel. The solar subpanel
must:
o Contain enough spaces to accommodate the number of two-pole breakers required for the
Enphase IQ Envoy, plus the number of microinverter branch circuits
o Have a total ampacity rating sufficient for the design
o Be main lug only. Proper over current protection per code requirements must be provided
o Be rated for the environment it is installed in (indoor versus outdoor)
• A two-pole, up to 20A circuit breaker for connecting the IQ Envoy