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 5400/6200/11900 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 process
Efficiency / Power Consumption  
Max. Efficiency (typical) 95 %
Consumption with No Load /standby 22 W /4 W
Protection devices  
DC reverse polarity / DC fuse yes / yes
AC short-circuit / AC overload yes / yes
Overtemperature / excessive battery discharge yes / yes
General Data  
Dimensions (Width / Height / Depth in mm) 390 / 590 / 245
Weight 39 kg
Operating temperature range –25 °C ... +50 °C
Protection rating Indoors (NEMA 1)
Features / Function  
Operation & display / multifunction relays Internal / 2
3-phase systems / parallel connection - / -
Integrated bypass / multicluster operation - / -
State of charge calculation / Full- / Equalization charge - / yes / yes
Integrated soft start / Generator support - / -
Battery temperature sensor / Communication cables yes / -
Warranty (5 years / 10 years) yes / opt.
Certificates and permits www.SMA.de
Accessories  
Battery cables / battery fuses opt. / opt.
Interfaces (RS485 PB / Multicluster PB) opt. / -
GenMan extended generator start opt.
Load-shedding contactor / Battery current measurement opt. / -
   
Last update: March 2009  
Type Designation SI 4248U

Downloads

Language:
Solar Power Professional Search
Well informed and trained SMA contractors will be happy to help select the right product for you.