SUNNY ISLAND 4248U

The Sunny Island 4248U battery based inverter provides perfect sine wave off-grid power. An efficient, robust inverter, the Sunny Island 4248U is simple to install and operate yet is loaded with powerful and advanced features.

At 4200 Watts, the Sunny Island 4248U provides ample power to energize most household appliances with power to spare. It operates silently and can be powered by multiple type of energy sources from solar and wind to hydro and fuel cells. The Sunny Island 4248U also works in conjunction with grid-tied Sunny Boy inverters to provide a powerful and efficient back-up power solution. Whenever and wherever reliable, clean electric power is needed, the Sunny Island 4248U will perform.

  • Optimized for high ambient temperatures
  • Robust surge capacity for motor starting
  • High efficiency
  • Integrated DC breaker
  • Intuitive user interface
  • Load shedding
  • DC and AC coupling of energy sources
  • Nearly silent operation
  • Automatic generator start
  • Easy installation and commissioning
Output Data Sunny Island 4248U
Nominal AC Voltage (adjustable) 120 V (105 – 132V)
Nominal Frequency (adjustable) 60 Hz (55 – 65 Hz)
Cont. AC Output at 77 °F / 113 °F 4200/3400 W
Continuous AC Output at 77 °F for 30 / 5 / 1 min 5400/6200/7000 W
Nominal AC Current 35 A
Max. Current 140 A (for 5 s)
Harmonic Distortion Factor of Output < 3 %
Power Factor –1 to +1
Input Data  
Input Voltage 120 V (80 – 150 V)
Input Frequency 60 Hz (54 – 66 Hz)
Max. AC Input Current 56 A (2 – 56 A)
Max. Input Power 6.7 kW
Battery Data  
Battery Voltage (range) 48 V (41 – 63 V)
Max. Battery Charging Current 100 A
Continuous Charging Current 80 A
Battery Capacity 100 – 6000 Ah
Charge Control IU0U with automatic full and equal. charge
Efficiency / Power Consumption  
Max. Efficiency (typical) 95 %
Consumption with No Load (standby) 22 W (< 4 W)
   
Protection rating NEMA 1
Mechanical data  
Width / Height / Depth in Inches 15.35 / 23.23 / 9.65
Weight 86 lbs
   
Ambient Temperature –13 to +113 °F

Downloads

Language:
Data sheet


1.126 KB
Sunny Island 4248U SMA’s new off grid inverter - A technological leap into the future
Type: Data sheet
Language: English (US)
Document number: SI4248U_Flyer_020105
User Manual


3.422 KB
Sunny Island SI 4248UInstallation & Operating Instructions
Type: User Manual
Language: English (US)
Document number: SI4248U_Manual
Promotion Material


272 KB
Sunny Communication Poster
Type: Promotion Material
Language: English (US)
Document number: SCOMPOSTUS-11:AE2406
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