Off-Grid Inverters
Technical data
AC output (loads) Nominal AC voltage (adjustable) Nominal frequency (adjustable)
Continuous AC power at 25 °C / 45 °C
AC output power at 25 °C for 30 min / 1 min / 3 s Nominal AC current / max. AC current (peak) THD output voltage / power factor (cos ϕ)
AC input (generator or grid) AC input voltage (range) AC input frequency (range)
Max. input current (adjustable) / Max. input power
Battery DC input Battery voltage (range)
Max. battery charging current / continuous charging current at 25 °C Battery type / battery capacity (range) Charge control
Efficiency / operating consumption Max. efficiency
Own consumption with no load / standby
Protection devices DC reverse polarity protection / DC fuse AC short-circuit / AC overload
Overtemperature / excessive battery discharge General data
Dimensions (W / H / D) in mm Weight
Operating temperature range Protection rating (according to IEC 60529)
Features / function Operation & display / multifunction relays 3-phase systems / parallel connection Integrated bypass / multicluster operation
Charge level calculation / full- / equalization charge Integrated soft start / generator support
Battery temperature sensor / communication cables Warranty: (5 / 10 / 15 / 20 / 25 years) Certificates and permits Accessories
Battery cables / battery fuses
Interfaces (RS485 / Multicluster PB) "GenMan" extended generator start
Load-shedding contactor / battery current measurement
● Standard features ○ Optional features — not available Last revision: May 2010 Type designation
Sunny Island 3324
Sunny Island 4248
Sunny Island 4248-US
230 V (202 V – 253 V) 230 V (202 V – 253 V) 120 V (105 V – 132 V) 50 Hz (45 Hz – 55 Hz) 50 Hz (45 Hz – 55 Hz) 60 Hz (55 Hz – 65 Hz) 3300 W / 2300 W 4200 W / 3400 W 4200 W / 3400 W 4200 / 5000 / 7300 W 5400 / 7000 / 11400 W 5400 / 7000 / 11900 W 14.5 A / 70 A for 100 ms 18 A / 100 A for 100 ms 35 A / 140 A for 5 s < 3 % / –1 to +1
< 3 % / –1 to +1 230 V (172.5 V – 264.5 V) < 3 % / –1 to +1 120 V (80 V – 150 V)
50 Hz (40 Hz – 60 Hz) 50 Hz (40 Hz – 60 Hz) 60 Hz (54 Hz – 66 Hz) 56 A (2 – 56 A) / 12.8 kW 56 A (2 – 56 A) / 12.8 kW 56 A (2 – 56 A) / 6.7 kW
24 V (21 V – 32 V) 140 A / 104 A
48 V (41 V – 63 V) 100 A / 80 A
IUoU process 95 % 22 W / 4 W
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390 / 590 / 245 39 kg
–25 °C ... +50 °C indoors (IP30)
internal / 2 —/— —/—
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www.SMA-Solar.com
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48 V (41 V – 63 V) 100 A / 80 A
lead / 100 – 6,000 Ah lead / 100 – 6,000 Ah lead / 100 – 6,000 Ah IUoU process
IUoU process 94.5 % 22 W / 4 W
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390 / 590 / 245 39 kg
–25 °C ... +50 °C indoors (IP30)
internal / 2 —/— —/—
—/●/● ●/— ●/—
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www.SMA-Solar.com
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○/— 95 % 22 W / 4 W
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390 / 590 / 245 39 kg
–25 °C ... +50 °C indoors (NEMA 1)
internal / 2 —/— —/—
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www.SMA-Solar.com
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SI 3324
SI 4248
SI 4248U
Single-phase system
Split-phase system (only with Sunny Island 4248-US) 135
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