SMA SI 5048US Sunny Island 5000W / 48VDC Inverter

The SMA SI 5048US Sunny Island 5000W / 48VDC Inverter is no longer available from Infinigi.

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SMA SI 5048US Sunny Island 5000W / 48VDC Inverter

SMA SI 5048US Sunny Island 5000W / 48VDC Inverter

The Island Manager

Commissioning within minutes: the Sunny Island 5048 makes it possible. All required operational settings can be made quickly and easily in just a few steps. The Sunny Island 5048 is flexible in its application, extendable and takes on all control processes. Its first-class battery management ensures maximum battery life. In addition, the device features an impressive high-efficiency, ergonomic die-cast aluminum enclosure and an OptiCool active cooling system. The Sunny Island is also available in a UL-compliant 5048-US version with an output rating of 120 V and 60 Hz for the North American market.

Features of the SMA SI 5048US Sunny Island 5000W / 48VDC Inverter:


  • For systems from 3 to 300 kW
  • 1- and 3-phase operation, connectable in parallel and modularly extendable
  • AC and DC coupling


  • Easy commissioning with the "Quick Configuration Guide"
  • Complete off-grid management


  • High efficiency
  • Intelligent battery management for maximum battery life
  • Charge level calculation


  • Extreme overload capability
  • OptiCool
  • 5-year SMA warranty

Also Known As:

Also Known As:

  Sunny Island 5048-US

AC output (loads)
Nominal AC voltage (adjustable) 120 V (105 V — 132 V)
Nominal frequency (adjustable) 60 Hz (55 Hz — 65 Hz)
Continuous AC power at 25 °C / 45 °C 5000 W / 4000 W
AC output power at 25 °C for 30 min / 1 min / 3 s 6500 W / 8400 W / 11000 W
Nominal AC current / max. AC current (peak) 41.7 A /180 A for 60 ms
THD output voltage / power factor < 3 % / —1 to +1

AC input (generator or grid)
AC input voltage (range) 120 V (80 V — 150 V)
AC input frequency (range) 60 Hz (54 Hz — 66 Hz)
Max. input current (adjustable) / max. input power 56 A (0 A — 56 A) / 6.7 kW

Battery DC input
Battery voltage (range) 48 V (41 V — 63 V)
Max. battery charging current / continuous charging current at 25 °C 120 A / 100 A
Battery type / battery capacity (range) lead, NiCd / 100 — 10,000 Ah
Charge control IUoU process

Efficiency / operating consumption
Max. efficiency 95 %
Own consumption with no load / standby 25 W / 4 W

Protection devices
DC reverse polarity protection / DC fuse yes / yes
AC short-circuit / AC overload yes / yes
Overtemperature / excessive battery discharge yes / yes

General data
Dimensions (W / H / D) in mm 467mm / 612mm / 235mm (18 / 24 / 9)in
Weight 139 lbs 63 kg
Operating temperature range —25 °C ... +50 °C (–13 ° F +122 °F)
Protection rating (as per IEC 60529) indoors (NEMA 1)

Features / function
Operation & display / multifunction relays internal / 2
3-phase systems / parallel connection yes / yes
Integrated bypass / multicluster operation — / yes
Charge level calculation / full- / equalization charge yes / yes / yes
Integrated soft start / generator support yes / yes
Battery temperature sensor / communication cables yes / yes
Warranty: (5 / 10 / 15 / 20 / 25 years) yes / opt. / opt. / opt. / opt.
Certificates and permits

Battery cables / battery fuses opt. / opt.
Interfaces (RS485 / Multicluster PB) opt. / opt.
GenMan extended generator start opt.
Load-shedding contactor / battery current measurement opt. / opt.
Last revision: May 2010  
Type designation SI 5048U


Important note for the SMA SI 5048US Sunny Island 5000W / 48VDC Inverter

Shipping Note: Due to the oversized nature of this product, freight is the only shipping method available. You may proceed with an order online and we will contact you prior shipping this item or please Contact Us and we will work to get you the exact shipping cost.
Note: Specifications and pricing of the SMA SI 5048US Sunny Island 5000W / 48VDC Inverter subject to change without notice. Illustrations and descriptions of the SMA SI 5048-US do not claim to be complete or exhaustive.

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