enphase M250 User Manual

Enphase Microinverter Installation and Operation
 2016 Enphase Energy. All rights reserved. 141-00024 Rev 02b
22
Step 9: Connect the Engage Cable to AC Junction Box
a. Connect Engage Cable into the AC branch
circuit junction box using an appropriate gland or
strain relief fitting. The Engage Cable requires a
strain relief connector with an opening of 1.3 cm
(0.5 inches) in diameter.
b. Connect the Engage Cable into additional AC
junction boxes as needed to transition to conduit
between smaller sub-arrays.
Refer to the schematics located on page 40 for
more information.
Single-phase 230 Vac
Three-phase 400 Vac
L1 - Brown
L1 - Brown
(not present)
L2 - Black
(not present)
L3 - Grey
Neutral - Blue
Neutral - Blue
Earth – Green / yellow
(acts as equipment earth)
Earth – Green / yellow
(acts as equipment earth)
Balanced 400 Vac (3-phase) is accomplished by alternating phases between microinverters as shown:
WARNING: Risk of electric shock. Treat all connector contacts as though they are live. The 400 Vac Engage
Cable drop connector contains two live phases.

enphase M250 Specifications

General

Model	M250
Manufacturer	Enphase Energy
Efficiency	96.5%
Output Voltage	240 V
Operating Temperature Range	-40°C to +65°C
Maximum Output Current	1.04 A
CEC Efficiency	96.0%
Start-up Voltage	22 V
Output Frequency	60 Hz
Enclosure Rating	IP67
Weight	1.6 kg