Enphase M215-IG, M250, M215, M190, D380, EFM-35MM, EFM-40MM, EFM-CC, ET-CLIP, NFI-1414, NFI-1461, NFI-1462, ACC F2-90, UNIRAP, SunRunner, SunBundler, DCS-1307, ACME ACC-PV, SunRunner, WEEB PMC, 11.5, CMC, DMC, DSK516, KMC, KSR, CCR Technical Brief

TECHNICAL

BRIEF

Compatible Racking Makes and Models for Mounting Enphase

Microinverters

Purpose

This document is not intended to be an exclusive list of racking manufacturers compatible with

Enphase

®

Microinverters. Instead, it lists racking products that Enphase has validated for compatibility through field installations or lab evaluations.

•

Section 1 lists rail-based racking systems that work without modification, using the racking manufacturer’s standard microinverter attachment hardware.

•

Section 2 lists rail-less racking systems. These systems may require a custom bracket or attachment method and often require that the cable be supported with a clip to the module frames.

•

Section 3 lists racking systems where the Enphase Microinverter is part of a factory-assembled proprietary racking or module solution.

NOTE: All recommendations included in the Enphase Microinverter Operations and

Installation Manual must be maintained, including, but not limited to:

•

Do not install the microinverter in a location where it is exposed to prolonged periods of direct sunlight.

•

Install the microinverter at a distance greater than ½” from the module backsheet.

•

Install the microinverter at a distance greater than ¾” from the roof.

NOTE: All trademarks are the property of their respective owners.

Grounding Options for Enphase Microinverters with Integrated Ground

The Enphase M215-IG and M250 Microinverters are grounded through the grounding conductor in the

Engage Cable. These microinverters require no additional ground. It is not necessary, but an additional bond can be provided between the microinverters and the racking systems using a grounding washer, such as the WEEB grounding washer from Burndy Electronics. If a grounding path is established between the microinverters, the racking, and the module frames, it may be acceptable to the jurisdiction to provide the racking and modules’ equipment grounding through the Enphase Engage Cable.

1

© 2015 Enphase Energy Inc. All rights reserved.

February 2015

Compatible Racking

Recent Mechanical Modifications to the Enphase Lid

In the first quarter of 2014, Enphase began manufacturing M215-IG and M250 Microinverters with a new lid.

These microinverters no longer have a grounding channel, grounding hole, and grounding clip, and the lids have been shortened by about an inch.

Grounding Options for the M215 Original and Previous Generation Microinverters

The ground clamp provided on the mounting flange of “third generation” Enphase Microinverters accepts #8 through #6 AWG grounding electrode conductors. This document also details alternative grounding clip solutions for each rail type, if available.

CSA has evaluated and approved the Burndy / Wiley Electronics WEEB grounding washers for use with the

Enphase Microinverter. Where the compatible racking models have listed grounding washers available, we list the Burndy / Wiley Electronics part numbers in sections 2 and 3 of this document.

Frame Mount and Connector Clip

You can use the Enphase Frame Mount and Connector Clip to attach Enphase Microinverters directly to most module frames. The Frame Mount bracket is a convenient solution for mounting microinverters when conventional, rail based mounting solutions aren’t available. It may be the ideal solution for rail-less mounting systems and ballasted, flat-roof commercial racking systems.

When using the Enphase Frame Mount bracket, use the Enphase Connector Clip to keep cabling off the roof and connected to the module frames. The Connector Clip securely holds the Enphase Engage Cable connectors to module frames. You may need additional AC wire clips to support the cable between the cable connectors.

Enphase Frame Mount

EFM-35MM - For 35mm module frames

EFM-40MM - For 40mm module frames

Enphase Connector Clip

EFM-CC - Holds Enphase Connector Clip securely to module frames

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March 2015

Compatible Racking

Wire Management

Wire management is critical to ensuring the long-term reliability of an Enphase system. The following section of this document contains a list of wire clips you can use to support and manage the AC and DC conductors in an Enphase system.

You can find more comprehensive wire management information at www.enphase.com

. The wire management document recommends best practices for managing the AC and DC conductors, wiring the junction boxes for long term reliability, and using the Engage Coupler to reduce the numbers of conduits, conductors, and junction boxes on the roof. http://enphase.com/global/files/Enphase-Engage-Cable-Management.pdf

DC Wire Management Products

Installers use a number of methods to support the DC module leads off the roof. Many simply loop the cable and then plug it into the microinverters, leaving the cable to rest on top of the microinverter and racking.

Some clip the DC module lead to the module frame, using a clip rated for PV Cable. Just a few of the many options are as follows:

Manufacturer Model Image

Nine Fasteners DCS-1307 PV cable clip

Burndy / Wiley Electronics

Heyco Products

ACME ACC-PV PV cable clip

SunRunner PV cable clip

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March 2015

AC Wire Management Products

Manufacturer

Enphase Energy

Model

ET-CLIP

Rail or Module Frame

Rail

Parallel or

Perpendicular

When cable runs parallel to rail

Compatible Racking

Image

Nine Fasteners NFI-1414



Module frame When cable runs parallel to module frame

Module frame When cable runs parallel to module frame

Module frame When cable runs perpendicular to module frame

Burndy/Wiley

Burndy/Wiley

Heyco

Heyco

ACC-F2-90

UNIRAP

Module frame

Rail

When cable runs parallel or perpendicular to module frame

When cable runs parallel to rail or mounting system

SunRunner 2

Series

Rail or module frame When cable runs parallel to rail or module frame

SunBundler Rail When cable runs parallel to rail or mounting system

•

The Enphase Engage 240V, single-phase cable has an outside diameter of 10.75mm (0.425”).

•

The Enphase Engage 208V, three-phase cable has an outside diameter of 11.75mm (0.463”).

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March 2015

Compatible Racking

Section 1 — Rail Based Systems - No Modification Required

AEE

Module Rail

SnapNrack Series 100

SnapNrack Series 100UL http://www.aeesolar.com

Fastener Information

Channel nut with 5/16” hex head bolt

UL listed channel nut with 5/16” hex head bolt

A.E.T (Applied Energy Technologies)

Module Rail

Rayport P (pitched roofs)

Rayport B (ballasted)

Rayport T6 (ground)

Rayport G-Eco (ground) http://www.aetenergy.com


Microinverter hardware kit 80677

Microinverter hardware kit 80672 /

80612



Baja Carports

Module Rail

Solar Support Systems http://www.bajacarports.com/


5/16” bolt and hardware to purlin

Conergy

Module Rail

Suntop IV (pitched roofs)


Quickstone slide nut with M8 socket head cap screw http://www.conergy.us

Grounding Washer

WEEB-PMC

Proprietary UL-2703


WEEB-11.5



WEEB-CMC

Cooper B-Line

Module Rail

ARISTA

TM

(ballasted)

B-Line Ground Mount


¼” or 5/16” strut nuts or spring nuts

¼” or 5/16” strut nuts or spring nuts http://www.cooperindustries.com/content/public/en/b-line/markets/solar.html


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March 2015

Compatible Racking

DPW Solar (Direct Power and Water)

Module Rail

Power Rail (pitched roofs)

Ballasted Power Rail

(ballasted) http://www.dpwsolar.com/


0.25 inch hex head bolt, washer, nut, for top rail mount



WEEB-DMC

WEEB-DMC

Ecolibrium Solar

Module Rail

Ecorail (pitched roofs)

Eco-X Rail-less http://www.ecolibriumsolar.com/


Slider and bolt

Microinverter attachment bracket

ECO-001-104


WEEB-DSK516

Everest Solar Systems

Module Rail

CrossRail (pitched roofs)


Microinverter mounting kit (200315)

XpressRail (pitched roofs) Microinverter mounting kit (200315)

Dome System S/D (ballasted) Microinverter mounting kit (200315) http://www.everest-solarsystems.com/home.html

Haticon

Module Rail

Haticon Rail (pitched roofs)

Haticon Rail (ballasted)

Haticon Rail (ground) http://www.haticonsolar.com/home/


Slider and bolt

Slider and bolt

Slider and bolt

IronRidge

Module Rail

Light Rail XRL

Standard Rail XRS


WEEB-KMC

WEEB-KMC

WEEB-KMC


WEEB-DMC

WEEB-DMC

WEEB-DMC


0.25 inch hex head bolt, washer, nut, for top rail mount (#29-5003-005)



WEEB-DMC

WEEB-DMC http://www.ironridge.com/

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March 2015

Compatible Racking

Kinetic Solar

Module Rail

K-Rack http://www.K-rackinfo.com


Slider and hardware

Mage

Module Rail

Systemtec


T-bolt and hardware http://www.magesolar.com/us/products/mounting_system.html


WEEB-KSR

K2 Systems

Module Rail

K2 Systems

K2 MultiRail http://www.k2-systems.uk.com/home.html

Fastener Information Grounding Washer

Slide nut with M8 socket head cap screw WEEB-KMC

K2 slot nut (#1001643) and M8 bolt


WEEB-CCR

MBarC Carports

Module Rail

Solar F.I.T. Structures http://www.mbarconline.com/



mounts4solar

Rail 6.0

Module Rail

http://mounts4solar.com/


M8 SS hammer head bolt



MSI (Mounting Systems, Inc.)

Module Rail

Alpha (Flush Mount)

Alpha+ (Flush Mount)


T-bolt 806-0021

T-bolt 806-0021

Tau (Flush Mount)

Tau+ (Flush Mount)

T-bolt 806-0021

T-bolt 806-0021

Lambda (Ballasted Flat Roof) T-bolt 806-0021

Sigma (Ground Mount) T-bolt 806-0021 http://ww3.mounting-systems.info/en/


WEEB-CMC

WEEB-CMC

WEEB-CMC

WEEB-CMC

7


March 2015

Compatible Racking

NCP Solar

Module Rail Fastener Information

Flush Mount Racking System Slide nut with 5/16” socket head cap screw

Ballasted Roof Racking System Slide nut with 5/16” socket head cap screw http://www.ncpgroup.ca/Racking_Systems_-118533.html

PanelClaw, Inc.

Racking System

Polar Bear

Kodiak Bear

Grizzly Bear

Polar Bear III http://www.panelclaw.com/


Claw to vertical support

1-¼” Minerallac EMT conduit hanger

Claw to vertical support

Microinverter mounting kit 5000204

Polar Racking

Module Rail

PRR

PRP Solar Carport http://www.polarracking.com/


Rotite nut and hardware


ProSolar

Module Rail

Rooftrac Rail

Groundtrac Rail


Channel nut with 5/16” hardware

Channel nut with 5/16” hardware

Racking Brief_03_2015.docxhttp://www.prosolar.com/

PV Racking

Module Rail

PV Racking Pitched Roof http://www.pvracking.us/


3/8” hardware


WEEB-11.5

WEEB-11.5


Proprietary UL-2703

Proprietary UL-2703

Proprietary UL-2703

Proprietary UL-2703


Proprietary ground washer


WEEB-PMC

WEEB-PMC


SGB4 Lug

8


March 2015

Compatible Racking

RBI Solar

Module Rail

RBI Solar GM-I (Portrait)

RBI Solar RM-I http://www.rbisolar.com/


Enphase compatibility kit

Bolt to support bar (under module)

Renusol

Module Rail

Renusol VS http://www.renusolamerica.com/


T-bolt and hardware

Schletter, Inc.

Module Rail

05 Series Rail

Fix Z Series Rail

S Series Rail http://www.schletter.us/


Mounting hardware- microinverter kit

Mounting hardware- microinverter kit

Microinverter mounting kit for S series

Schuco

SolarEZ

Module Rail Fastener Information

ezUniversal screws (M8x14) ezAnchor blocks http://www.schueco.com/

Sessions

Module Rail

Creotecc Base Rail http://www.sessionsolar.com/


3/8” hex head bolt, nut, and washers

SnapNrack

Module Rail

SnapNrack Series 100

SnapNrack Series 100UL


Channel nut with 5/16” hex head bolt

UL listed channel nut with 5/16” hex head bolt



WEEB-SMC


Schletter clip Incl. w/ kit

Schletter clip Incl. w/ kit


WEEB-SMC



WEEB-PMC

Proprietary UL-2703

9


March 2015

Compatible Racking

SolarWorld

Module Rail

Sunfix Plus http://www.solarworld-usa.com/


SK0145- T40 truss head screw,

M8x16mm, SA0295- M8 channel nut

Sollega

Module Rail

InstaRack http://www.sollega.com/


WEEB-PMC


Top spring nut with 5/16” hex head bolt


Spider-Rax

Module Rail

Red Widow Rail-less

Black Widow Rail-less

Wolf Spider http://spiderrax.com/


2 – 3/8” bolts and washers to post

3/8” bolt and hardware to short rail



Sunlink

Sunlink Mounting Solution

Core-RMS 490-000000

Precision-RMS 690-000010


5/16” hardware: 09-00010-01 screw, 09-

0002-01 nut, 09-00154-01 washer

5/16” hardware: 09-00002-01 flange nut,

09-00139-01 T-stud

Specify Enphase compatible


WEEB-11.5

WEEB-11.5

Sunlink-RMS

When ordering a Sunlink Tilt Access system, specify that it be for an Enphase Microinverter installation.

Sunlink will add microinverter-mounting holes to the “Spar” extrusion. The mounting holes are located at permodule spacing for the microinverters. http://www.sunlink.com/products/ground-mount-systems/ http://www.sunlink.com/

SunModo Corp.

Module Rail

Ez Helio Rail


0.25 inch hex head bolt, nut, and washers


WEEB-UMC http://www.sunmodo.com/

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March 2015

Compatible Racking

Unirac

Module Rail

Solarmount Light

Solarmount Standard

Solarmount HD

SolarMount-I

SolarMount-E (Evolution)

RM (Roof Mount)


¼” hex head bolt, washer, nut, for top rail mount



Enphase mounting kit: 08010M

Drilled and tapped with 0.25 inch hardware

Unistrut ¼” or 5/16” strut nuts or spring nuts- mounted vertically with DC connectors facing downward


WEEB-DMC

WEEB-DMC

WEEB-DMC

Sunframe (see below*) http://www.unirac.com/

* The Unirac Sunframe racking system secures the PV modules with a cap strip along the entire top edge of the racking rather than by use of a typical bolt and clamp bracket arrangement. You can attach the Enphase

Microinverters to the racking flange that supports the underside of the PV module by adding mounting holes and a flat adapter plate to which the microinverter can attach. Purchase commercially available adapter flanges (Practical Bracket 2) from Sunrise Solar Solutions, LLC at [email protected]

.

Unistrut

Module Rail

1-5/8”, 1-1/4”, 13/16”, metal framing system http://www.unistrut.us/

Zilla

Module Rail

Rail Mounting System http://www.zillarac.com/


¼” or 5/16” strut nuts or spring nuts


Microinverter hanger



11


March 2015

Section 2 — Rail-Less Mounting Systems for Residential

Compatible Racking

Andalay Solar

Mounting System

Instant Connect AC-250


Mounted at factory http://www.andalaysolar.com/ac-system/

Ecolibrium Solar

Module Rail

Eco-X Rail-less http://www.ecolibriumsolar.com/


Microinverter attachment bracket

ECO-001-104

Quick Mount Solar

Mounting System

Quick Rack Mounting http://www.quickmountpv.com/

Roof Tech, Inc.

Mounting System

RT-[E] Mount Air


Enphase Frame Mount bracket


RT-[E] Mount Air microinverter attachment bracket http://www.roof-tech.us/

Spider-Rax

Module Rail

Black Widow

Red Widow http://spiderrax.com/

Spice Solar

Mounting System

Spice Splice http://www.spicesolar.com/

Zep Solar

Mounting System

Zep Solar http://www.zepsolar.com/


3/8” bolt and hardware to short rail

2 – 3/8” bolts and washers to post


Enphase L-bracket


Zep Groove adapter bracket


Proprietary



Proprietary


Proprietary



Proprietary


Integrated into Bracket

12


March 2015

Compatible Racking

Section 3 — Factory Installed Assemblies

Andalay Solar (formerly Westinghouse Solar)

The Westinghouse system makes use of a proprietary PV module frame that allows the PV modules to be assembled to each other without the use of standard module racking. The Enphase Microinverter is factory mounted directly to the underside of the PV module frame and shipped as a one PV module, one microinverter assembly. http://www.andalaysolar.com/

SunEdison Solar in a Box

The SunEdison “Solar in a Box” system makes use of a proprietary PV module frame weldment that supports three PV modules per frame. The Enphase Microinverters are factory installed to a rail behind the modules and shipped as part of a set that includes three each of the following: PV-module, frame, and microinverter assembly. http://www.sunedison.com/

Solar Red

The Solar Red PV module mounting system makes use of proprietary brackets that are factory mounted to standard PV module frames and which mate to a proprietary roof bracket. The Enphase Microinverter is factory mounted to the “Panel Lower Mount” and ships as part of a PV module, panel lower mount, and panel locking mechanism assembly. http://www.solar-red.net/

PhonoSolar AC Module- PS-250P-AC

The PhonoSolar AC Module provides a manufactured assembly that does not require the mounting of any microinverter, as the microinverter is assembled onto the module. http://www.phonosolarusa.com/products-a-solutions/250w-ac-module

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March 2015

Compatible Racking

WEEB Installation Procedure

1. Install a minimum of one grounding washer per microinverter.

2. For each microinverter, install stainless steel 1-1/2” fender washers on the topside of the mounting bracket for the bolt that passes through the grounding washer.

3. Torque the microinverter fasteners to the values listed (minimum torque requirements). Wiley Electronics and the racking manufacturers will have specific torque specifications in their installation documents. We recommend using the highest of these values.

•

0.25 inch mounting hardware – 45 in-lbs minimum

•

5/16” mounting hardware – 80 in-lbs minimum

14


March 2015

Compatible Racking

Enphase Microinverter Dimensions

If a specific racking model is not listed in this document, use the following microinverter model diagrams to verify compatibility.

M215-IG and M250 Microinverters (beginning first quarter, 2014)

15


March 2015

M250 Microinverters (prior to second quarter, 2014)

Compatible Racking

16


March 2015

M215 Microinverters (prior to second quarter, 2014)

Compatible Racking

17


March 2015

M190 and D380 Microinverters

Compatible Racking

We continue to evaluate racking models for compatibility. Please check the Enphase Energy website for product updates and announcements or contact Customer Support regarding a specific racking compatibility.

Enphase Energy website: http://www.enphase.com

Enphase Customer Support: http://www.enphase.com/support

18


March 2015

Enphase M215-IG, M250, M215, M190, D380, EFM-35MM, EFM-40MM, EFM-CC, ET-CLIP, NFI-1414, NFI-1461, NFI-1462, ACC F2-90, UNIRAP, SunRunner, SunBundler, DCS-1307, ACME ACC-PV, SunRunner, WEEB PMC, 11.5, CMC, DMC, DSK516, KMC, KSR, CCR Technical Brief

Assistant Bot

TECHNICAL

BRIEF

Compatible Racking Makes and Models for Mounting Enphase

Microinverters

Purpose

Grounding Options for Enphase Microinverters with Integrated Ground

Recent Mechanical Modifications to the Enphase Lid

Grounding Options for the M215 Original and Previous Generation Microinverters

Frame Mount and Connector Clip

Wire Management

DC Wire Management Products

AC Wire Management Products

•

Section 1 — Rail Based Systems - No Modification Required

AEE

A.E.T (Applied Energy Technologies)

Baja Carports

Conergy

Cooper B-Line

DPW Solar (Direct Power and Water)

Ecolibrium Solar

Everest Solar Systems

Haticon

IronRidge

Kinetic Solar

Mage

K2 Systems

MBarC Carports

mounts4solar

MSI (Mounting Systems, Inc.)

NCP Solar

PanelClaw, Inc.

Polar Racking

ProSolar

PV Racking

RBI Solar

Renusol

Schletter, Inc.

Schuco

Sessions

SnapNrack

SolarWorld

Sollega

Spider-Rax

Sunlink

SunModo Corp.

Unirac

Unistrut

Zilla

Section 2 — Rail-Less Mounting Systems for Residential

Andalay Solar

Ecolibrium Solar

Quick Mount Solar

Roof Tech, Inc.

Spider-Rax

Spice Solar

Zep Solar

Section 3 — Factory Installed Assemblies

Andalay Solar (formerly Westinghouse Solar)

SunEdison Solar in a Box

Solar Red

PhonoSolar AC Module- PS-250P-AC

WEEB Installation Procedure

Enphase Microinverter Dimensions

M215-IG and M250 Microinverters (beginning first quarter, 2014)

M250 Microinverters (prior to second quarter, 2014)

M215 Microinverters (prior to second quarter, 2014)

M190 and D380 Microinverters

Key Features

Frequently Answers and Questions

How are the M215-IG and M250 Microinverters grounded?

Do these microinverters require additional ground?

Is it necessary to provide an additional bond?

Related manuals

enphase

Solar Inverter

IRONRIDGE

Enphase Microinverter