enphase M250 Quick Install Guide

7
Terminate the Unused End of the Cable
a. Remove 60 mm (2.5”) of the cable sheath from
the conductors.
6
c. Slide the hex nut onto the cable.
d. Insert the cable end all the way into the wire
organizer (up to the stop).
e. Attach the cap.
hex
nut
wire
organizer
cap
f. Attach the terminated cable end to the PV
racking with a cable clip or tie wrap.
Connect the Cable to the AC Junction Box
Connect the cable into the AC branch circuit
junction box. See notes in Step Details on
back.
bend wires down
into recesses of wire
organizer and trim to
length
place cap over
the wire organizer
hold the cap
with the discon-
nect tool or a #2
screwdriver
rotate the hex nut
with your hand or
a wrench until the
latching mechanism
meets the base–
do not over torque
8
Complete the Installation Map
Build the map manually, or use the Array Gun tool
to map the system. For more information, go to
http://enphase.com/products/arraygun.
To manually build the map, peel the removable se-
rial number label from each microinverter and afx
it to the respective location on the map included
with this guide.
serial
number
labels
b. Check that all terminator parts are present.
Never unscrew the hex nut. This action
can twist and damage the cable.
9
Connect the PV Modules
a. Mount the 60-cell PV modules above the micro-
inverters.
b. Connect the DC leads of each 60-cell PV mod-
ule to the DC input connectors of their corre-
sponding microinverter.
The status LED on the underside of each M250
lights green six seconds after DC power is
applied. It remains lit solid for two minutes, fol-
lowed by six green blinks. After that, red blinks
indicate that no grid is present. This is because
the system is not yet energized.
status LED

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