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6
Technical Data
WARNING: It is required to match the DC operating voltage range of
the PV module with the allowable input voltage range of the Enphase
Micro-Inverter.
WARNING: The maximum open circuit voltage of the PV module may
not exceed the specified maximum input voltage of the Enphase Micro-
Inverter.
The Enphase M175-24-240-S Micro-Inverter has been specifically optimized for
operation with most 72-cell (24V nominal) PV module configurations. Be sure to
verify the voltage and current specifications of your PV module match with those of
the Micro-Inverter.
The output voltage and current of the PV module depends on the quantity, size and
temperature of the PV cells, as well as the solar insolation on each cell. The highest
PV module output voltage occurs when the temperature of the cells is the lowest and
the module is at open circuit (not operating). The maximum short circuit current
rating of the module must be equal to or less than the maximum input DC short
circuit current rating of the Micro-Inverter. A list of compatible PV modules is
maintained on the Enphase website (www.enphaseenergy.com).
M175-24-240-S Micro-Inverter Operating Parameters
Topic
MPPT voltage range
Maximum DC input voltage
Maximum DC input short circuit
current
Maximum DC input current
Ground fault protection
Maximum AC output Power (at 65
deg. C)
Output power factor
Nominal AC output voltage range
Extended AC output voltage range
Maximum AC output current
Nominal AC output frequency range
Extended AC output frequency range
Maximum AC output over current
protection
Maximum AC output fault current
Page 12
Unit
DC Operating Parameters
V
V
A
A
mA
AC Operating Parameters
W
Vrms
Vrms
mA
Hz
Hz
A
A/ms
Copyright Enphase Energy Inc. 2008
Min
Typical
25
32
175
0.85
0.99
211
240
206
240
750
59.3
60
59.2
60
Max
40
54
10
8
1000
1
264
269
830
60.5
60.6
15
20/0.1
Release 1.4
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