Delta M42U

7.3 Technical of M28U series
Maximum input voltage
Operating voltage range
Start voltage
V
MPP range for POUT-RATED
Connection type
Combiner fuses
Surge protection, DC side
DC disconnect switch
Number of MPP trackers
Current limit, I
MP-MAX /MPPT
M28U
_120 M28U_121 M28U_122
1100V* (1000V MAX for NEC)
200 - 1000 V
>250 V
485 - 830 V
30A/MPPT
Allowable array ISC-MAX /MPPT 50A/MPPT
String current monitor
Allowable conductors
Rated voltage 710 V
2
Rated output power
Max. output power
Allowable grid configuration
Line frequency range
THD
Connection type
Surge protection, AC side
Night time consumption
28kW
30.8kW
Rated line voltage
3Ø-4W-Yg or 3Ø-3W
4W: 480/277±10% ; 3W: 480V±10%
Max. output current 37.5A
Efficiency
Peak efficiency
CEC efficiency
98.6 %
98.0 %
50/60Hz
<3%
<3W
Power factor Unity at P
RATED; adjustable: [0.8 ind ~0.8 cap]
AC Switch & Terminal block #4~#6 AWG
Euro efficiency 98.4 %
SPD Type II 10kA (8 x20us)
Dimensions (W x H x D) [in]
* The max withstand voltage is 1100Vdc. (inverter ceases operation if input exceeds 1000Vdc)
W/O Wiring box
Weight
[lb]
Shipping weight
24.2 x 32.2 x 10.8 24.2 x 34 x 10.8
W/ Wiring box 122.6 117.3 122.1
140.6 135.3 140.1
99.2
8 pr. Fuse holders 2pr. Terminal blocks 8 pr. MC4 connectors
#10~#12 AWG, Cu only #2~#8 AWG, Cu/Al
SPD Type II 10kA (8 x20us)
#10~#12 AWG, Cu only
16 x 15A Not Provisioned 16 x 15A
Yes Yes Yes
Yes Not Provisioned Yes
DC Input
AC Output
General Data
Technical Data
95