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
9
Branch Circuit 1
Branch Circuit 2
Branch Circuit 3
Main
Service
Panel
IQ Envoy
in
Enclosure
Solar/
Envoy
Subpanel
One 60A Homerun Circuit
Installing IQ Envoy in an Outdoor Enclosure
The IQ Envoy must be installed inside of an electrical enclosure, keeping the operating temperature of the
Envoy in mind. This enclosure must be large enough to house the IQ Envoy and a dedicated receptacle to
power the IQ Envoy. The enclosure can be metal or non-metallic, but should be non-metallic if Wi-Fi or
cellular networks will be used for the IQ Envoy Internet connection. The enclosure must meet the following
requirements:
• Use a NEMA type 3R, 4, or better rated outdoor enclosure with hinged cover or screw cover of
suitable dimensions. Typical enclosure dimensions are in the range of 10” x 10” x 4” to 12” x 12” x 6”.
• The IQ Envoy does not ship with a plug-in style power cord, and must be connected to two lines and
a neutral for power and for production and consumption monitoring. Therefore, a receptacle is not
required in the enclosure for powering the IQ Envoy.
• If an Ethernet over power line communication (PLC) bridge is desired, you can install a receptacle
inside the enclosure. The enclosures listed below provide adequate room for a receptacle, if needed.
• The enclosure should be installed in a location that is shaded from extensive periods of direct
sunlight. The IQ Envoy is rated for ambient temperatures of -40°F to 115°F when installed in an
enclosure.
• If mounted outdoors, do not drill holes on the top of the enclosure or anywhere that allows moisture
ingress.
• Place in a location that is accessible by service personnel without requiring indoor access.