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7.3 Technical of M28U series
Maximum input voltage
Operating voltage range
Start voltage
V
range for P
MPP
OUT-RATED
Rated voltage
Number of MPP trackers
Current limit, I
/MPPT
MP-MAX
Allowable array I
/MPPT
SC-MAX
Connection type
Allowable conductors
Surge protection, DC side
Combiner fuses
DC disconnect switch
String current monitor
Rated output power
Max. output power
Max. output current
Allowable grid configuration
Rated line voltage
Line frequency range
Power factor
Surge protection, AC side
THD
Connection type
Night time consumption
Peak efficiency
CEC efficiency
Euro efficiency
Dimensions (W x H x D) [in]
W/ Wiring box
Weight
W/O Wiring box
[lb]
Shipping weight
* The max withstand voltage is 1100Vdc. (inverter ceases operation if input exceeds 1000Vdc)
M28U
_120
DC Input
1100V* (1000V MAX for NEC)
8 pr. Fuse holders
#10~#12 AWG, Cu only
16 x 15A
Yes
Yes
AC Output
4W: 480/277±10% ; 3W: 480V±10%
Unity at P
AC Switch & Terminal block #4~#6 AWG
Efficiency
General Data
24.2 x 32.2 x 10.8
122.6
140.6
95
M28U
_121
200 - 1000 V
>250 V
485 - 830 V
710 V
2
30A/MPPT
50A/MPPT
2pr. Terminal blocks
#2~#8 AWG, Cu/Al
SPD Type II 10kA
(8 x20us)
Not Provisioned
Yes
Not Provisioned
28kW
30.8kW
37.5A
3Ø-4W-Yg or 3Ø-3W
50/60Hz
; adjustable: [0.8 ind ~0.8 cap]
RATED
SPD Type II 10kA (8 x20us)
<3%
<3W
98.6 %
98.0 %
98.4 %
117.3
99.2
135.3
Technical Data
M28U
_122
8 pr. MC4 connectors
#10~#12 AWG, Cu only
16 x 15A
Yes
Yes
24.2 x 34 x 10.8
122.1
140.1
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