Voltage Type And Conductor Count Options; Cabling Length Options; Planning For Cable Lengths And Type - enphase M215-60-2LL-S23-IG Installation And Operation Manual

Voltage Type and Conductor Count Options

The voltage types are either 240 VAC split phase or 208 VAC three phase. All cable connectors bear
labels indicating the cable voltage designation. Typically used for residential applications, 240VAC
includes four conductors. Three-phase 208 VAC cabling includes five conductors, and is used for most
commercial installations. Because Enphase microinverters output onto two phases, three phase cabling
balances the phases by rotating conductor use from one microinverter to the next as shown on page 23.

Cabling Length Options

Engage Cabling is available in shorter lengths with 30-40 connectors, depending upon voltage type.
Longer lengths can be ordered and cut to suit per order. Ordering options include:
Model Number Voltage type/
conductor #
240 VAC,
ET10-240-40
4 conductor
240 VAC,
ET17-240-40
4 conductor
208 VAC,
ET10-208-30
5 conductor
208 VAC, 5
ET17-208-30
conductor
240 VAC,
ET10-240-BULK
4 conductor
240 VAC,
ET17-240-BULK
4 conductor
208 VAC,
ET10-208-BULK
5 conductor
208 VAC,
ET17-208-BULK
5 conductor

Planning for Cable Lengths and Type

The Cabling System is flexible enough to adapt to almost any solar design. To determine the length and
cable type that you need, apply the following considerations:

Account for the number of Enphase Microinverters to be installed on the AC branch
circuit. Make sure to allocate the correct number of connectors, including extra connectors for
gaps and turns.

Plan for additional cable length to reach from the AC branch circuit junction box to the
first microinverter. If greater than half a connector interval is needed, you may need to allow for
one (or more) unused connectors in order to span this distance. You must cover unused
connectors with Enphase watertight sealing caps.

Minimize the number of unused Engage Cable connectors with three-phase systems. When
cable connectors are left unused on a three-phase system, it creates a phase imbalance on the
branch circuit. If multiple cable connectors are skipped over multiple branch circuits, the
imbalance can multiply.
33
Connector
count
40
40
30
30
240
240
240
240
 2014 Enphase Energy Inc. All rights reserved.
M215 Installation and Operation
Connector PV module
spacing orientation
1.025 m (40")
Portrait
1.7 m (67")
Landscape
1.025 m (40")
Portrait
1.7 m (67")
Landscape
1.025 m (40")
Portrait
1.7 m (67")
Landscape
1.025 m (40")
Portrait
1.7 m (67")
Landscape
Approx. weight
18.1 kg
(40 lbs)
20.4 kg
(45 lbs)
13.6 kg
(30 lbs)
15.9 kg
(35 lbs)
over 90 kg
(200 lbs)
over 90 kg
(200 lbs)
over 90 kg
(200 lbs)
over 90 kg
(200 lbs)
141-00012 Rev 06