Enphase IQ Microinverter System Planning Tech Brief
Table Of Contents
- Planning for an IQ Microinverter System
- IQ 6 and IQ 6+ Micros
- Q Cable and IQ Micro Accessories
- IQ System Design using the IQ Combiner
- IQ System Design with Q Aggregator
- 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-064-1)
Planning for an IQ Microinverter System
© 2017 Enphase Energy Inc. All rights reserved. July 28, 2017
6
Sealing Caps
You must seal each unused Q Cable connector with a watertight sealing cap (Q-SEAL).
Seal each unused connector on the Q Aggregator with a male sealing cap. Also, during construction, you
must use male sealing caps to temporarily seal any exposed IQ Micro connectors, that are not connected to
the Q Cable, to protect against moisture or water damage at the exposed connector.
Q Terminator
Install a terminator cap on any cut end of Q Cable that is not terminated with a Field Wireable Q Connector.
IQ System Design using the IQ Combiner
Enphase has developed a UL listed IQ Combiner with integrated
IQ Envoy for use with the IQ System. Using an IQ Combiner
makes the customer “storage ready,” as it also allows connection
of Enphase IQ Battery circuits. The IQ Combiner installation and
design is like the previous Enphase AC Combiner Box. The
primary difference is that it includes a pre-installed IQ Envoy. The
IQ Combiner allows for any combination of up to three branch
circuits of IQ Micros or IQ Batteries to be terminated within the
enclosure. It’s important that only Line 1 of each solar
microinverter AC branch circuit passes through the Production CT,
as the IQ Battery circuits should not be measured by the
Production CT for proper storage system function. You may run
multiple Line 1 conductors for each solar microinverter AC branch
circuit through the production CT. The IQ Combiner includes three
20 A overcurrent protection circuit breakers for the individual
microinverter AC branch circuits, and a 5 A circuit breaker for protecting and switching the IQ Envoy. The
outdoor-rated enclosure of the IQ Combiner offers protection for the IQ Envoy, Mobile Connect cellular
(optional), and revenue-grade production metering.
Male connector on Q Cable
Female Sealing Cap (Q-SEAL)
Male Sealing Cap
(Q-BA-CAP)
Q Terminator on each cut end of
Q Cable