Planning For Microinverter Installation; Compatibility And Capacity; Compatibility; Branch Circuit Capacity - enphase M250 Installation And Operation Manual

Planning for Microinverter Installation

Enphase Microinverters are compatible with many PV modules and install quickly and easily. They
include integrated DC and AC cables and connectors. The DC connectors attach to the PV module, while
the AC connector attaches directly to the Engage Cable. No additional cabling is needed.
The Engage Cable is available in multiple connector spacing options and two voltage types to meet
varying site requirements. For Engage Cable ordering information, see "Engage Cable Planning and
Ordering" on page 30.
WARNING: Be aware that installation of this equipment includes risk of electric shock. Normally earthed
conductors may be unearthed and energised when an earth fault is indicated.

Compatibility and Capacity

The Enphase M215 and M250 Microinverters are electrically compatible with many PV modules. For
more information, see Technical Data on page 33 of this manual.
Refer to the Enphase website (http://www.enphase.com/support) for a list of electrically compatible PV
modules and approved mounting rail systems. To ensure mechanical compatibility, be sure to order
the correct connector type for both microinverter and PV module from your distributor.

Compatibility

Model Number
M250-60-230-S25
M215-60-230-S25E
M250-60-230-S22
M215-60-230-S22E
M215-60-230-S22
M250-60-230-S22-UK
M250-72-2LN-S2
M250-72-2LN-S5
M250-72-2LN-S2-UK
M250-72-2LN-S5-UK

Branch Circuit Capacity

Service type
230V single-phase
400V three-phase
400V three-phase, centre-fed*
* To centre-feed a branch, divide the circuit into two sub-branch circuits protected by a single overcurrent
protection device (OCPD).

Utility Service Requirements

The Enphase Microinverter works with single phase or three phase 230 Vac service. Measure AC line voltage at the electrical utility
connection to confirm that it is within the ranges shown:
Single-Phase Service
L1 to neutral
9
DC Connector Type
Amphenol H4 only
MC-4 Type 2 Locking
MC-4 Type 2 Locking
MC-4 Type 2 Locking
Amphenol H4 only
MC-4 Type 2 Locking
Amphenol H4 only
Maximum M250s per AC
207 to 253 Vac
 2016 Enphase Energy. All rights reserved.
M-Series Microinverter Installation and Operation
Pre-set with a Grid Profile
No
No
Yes
No
No
Yes
Yes
branch circuit
14
24
42
Three-Phase Service
L1 to L2 to L3
L1, L2, L3 to neutral
Compatibility
60-cell PV modules
60- and 72-cell PV
modules
Maximum M215s per AC
branch circuit
17
27
51
360 to 440 Vac
207 to 253 Vac
141-00024 Rev 02b