The new SMA Sunny Island 4548-US and 6048-US inverters are based on the proven off-grid technology in the Sunny Island 5048-US but now feature 20 percent more power output. A maximum efficiency of 96 percent ensures peak production, which results in reduced diesel usage and makes a smaller dimensioning of the PV array possible. The new Sunny Island with two different power ratings enable more flexible system sizing. And, with multicluster technology, up to 12 Sunny Islands can be integrated into off-grid power systems up 100 kW in size.
Efficient - Max. efficiency: 96 percent
- CEC efficiency: 94 % and 94.5%
- State of Charge Calculation
- Intelligent battery management for longer battery lifespan
- Product Specifications | Download
Simple - Easy commissioning with the "Quick Configuration Guide"
- Complete off-grid management
- Excellent for grid-tied battery back up
Flexible - For systems from 2 kW to 100 kW
- Single, 120/240 V split-phase and three-phase operation, connectable in parallel and modularly expandable
Durable - Extreme overload capacity
- OptiCool active temperature management system
- 5-year standard warranty
| SUNNY ISLAND 4548-US | SUNNY ISLAND 6048-US |
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| -AC output (loads) |
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| Rated grid voltage / AC voltage range | 120 V / 105 V – 132 V | 120 V / 105 V – 132 V |
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| Rated frequency / frequency range (adjustable) | 60 Hz / 55 Hz ... 65 Hz | 60 Hz / 55 Hz ... 65 Hz |
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| AC power (at 25 C / at 40 C) for 3 hours | 5000 W / 4000 W | 6000 W / 5000 W |
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| Rated power (@ Unom, fnom / 25 C / @ cos = 1) | 4500 W | 5750 W |
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| AC power at 25 C for 30 min / 1 min / 3 s | 5300 W / 8400 W / 11000 W | 7000 W / 8400 W / 11000 W |
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| Rated current / max. output current (peak) | 37.5 A / 180 A for approx. 60 ms | 48 A / 180 A for approx. 60 ms |
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| Total harmonic factor output voltage / power factor with rated power | 3 % / -1 ... +1 | 3 % / -1 ... +1 |
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| -AC input (generator or grid) |
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| Rated input voltage / AC input voltage range | 120 V / 80 V – 150 V | 120 V / 80 V – 150 V |
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| Rated input frequency / allowable input frequency range | 60 Hz / 54 Hz ... 66 Hz | 60 Hz / 54 Hz ... 66 Hz |
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| Max. AC input current / adjustable | 56 A / 0 A ... 56 A | 56 A / 0 A ... 56 A |
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| Max. AC input power | 6.7 kW | 6.7 kW |
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| -Battery DC input |
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| Rated input voltage / DC voltage range | 48 V / 41 V – 63 V | 48 V / 41 V – 63 V |
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| Max. battery charging current / DC rated charging current | 100 A / 85 A | 130 A / 110 A |
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| Battery type / battery capacity range | Lead, NiCd / 100 Ah ... 10000 Ah | Lead, NiCd / 100 Ah ... 10000 Ah |
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| Charge control | IUoU charge procedure with automaticfull charge and equalization charge | IUoU charge procedure with automaticfull charge and equalization charge |
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| -Efficiency / self-consumption |
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| Max. efficiency / CEC efficiency | 96 % / 94 % | 96 % / 93.5 % |
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| Self-consumption without load / standby | 25 W / 4 W | 25 W / 4 W |
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| -Protective devices |
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| DC reverse polarity protection / DC fuse | yes / yes | yes / yes |
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| AC short-circuit / AC overload | yes / yes | yes / yes |
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| Overtemperature / battery deep discharge | yes / yes | yes / yes |
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| -General data |
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| Dimensions (W / H / D) | 467 / 612 / 235 mm(18.4 / 24.1 / 9.3 inch) | 467 / 612 / 235 mm(18.4 / 24.1 / 9.3 inch) |
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| Weight | 63 kg / 139 lb | 63 kg / 139 lb |
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| Operating temperature range | -25 C ... +60 C /-13 F ... +122 F | -25 C ... +60 C /-13 F ... +122 F |
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| -Features / function |
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| Operation and display / multi-function relay | Internal / 2 | Internal / 2 |
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| Degree of protection (according to IEC 60529) | indoors (NEMA 1) | indoors (NEMA 1) |
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| Three-phase systems / parallel connection | yes / yes | yes / yes |
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| Integrated bypass / multicluster operation | — / yes | — / yes |
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| State of charge calculation / full charge / equalization charge | yes / yes / yes | yes / yes / yes |
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| Integrated soft start / generator support | yes / yes | yes / yes |
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| Battery temperature sensor / data cable | yes / yes | yes / yes |
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| Warranty (5 / 10 / 15 / 20 / 25 years) | yes / opt. / opt. / opt. / opt. | yes / opt. / opt. / opt. / opt. |
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| Certificates and approvals | www.SMA-Solar.com | www.SMA-Solar.com |
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| -Accessories |
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| Battery cable / battery fuse | opt. / opt. | opt. / opt. |
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| Interface (RS 485 / Multicluster PB) | opt. / opt. | opt. / opt. |
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| Extended generator start GenMan | opt. | opt. |
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| Load-shedding protection / battery current measurement | opt. / opt. | opt. / opt. |
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| -Footnote |
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| Type designation | SI4548-US-10 | SI6048-US-10 |
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