High Voltage Three-Phase Inverter Charger SMA Sunny Island X 50kW SI50-20
Modelo: SI50-20- Sku: SMAINVE006
- Vendor: SMA
Specifications
Product Description
The SMA Sunny Island X 50kW SI50-20 Three-phase HV Inverter Charger is designed for industrial and commercial applications that require high charging/discharging power for high-voltage batteries while maintaining reliable operation in demanding environments. With 50 kW nominal power and a maximum efficiency of 98%, it integrates Modbus TCP, Speedwire, and WLAN communications for top-tier plant monitoring via Sunny Portal (ennexOS) and advanced energy management control without back-up function in grid-connected systems.
Main Features
- Nominal power: 50 kW (50 kVA) three-phase; nominal output current 75.5 A per phase.
- HV input for lithium batteries: 200–980 VDC with integrated DC/DC converter and 150 A usable current.
- Max. efficiency 98% (European efficiency 97.2%); power factor 1 adjustable from 0 ind to 0 cap.
- IP65/NEMA 4X enclosure, active cooling, and operation from −25 °C to +60 °C with derating from 45 °C.
- Integrated energy management functions: self-consumption, peak demand limitation, and multi-use modes.
- Flexible integration with PV inverters in AC coupling and SMA ecosystem via Modbus TCP / Speedwire / WLAN.
Advantages or Benefits
- High power density for large loads, start-up peaks, and demanding industrial profiles.
- Massive scalability: integration in grid-connected systems without back-up (up to 11 units with SI-X or 50 with Data Manager M).
- Industrial robustness: IP65 environmental protection and reinforced climate class for severe conditions.
- Efficient operation that maximizes battery energy use and reduces conversion losses.
- Transparency and control with centralized commissioning and remote parameterization from Sunny Portal.
Purpose or Applications
Intended for commercial and industrial plants with AC coupling seeking energy management (peak-shaving, load shifting, self-consumption optimization) without the need for back-up switching. Also suitable for microgrids and off-grid systems with generators using Sunny Island X Connection Box and Hybrid Controller for synchronization and control of AC sources.
Technical Specifications
| Nominal power (AC) | 50 kW (50 kVA) three-phase |
| Max. / EU efficiency | 98.0% / 97.2% |
| Nominal AC voltage / range | 400 V~ (Yn) / 187–528 V~ |
| Frequency | 50/60 Hz (44–66 Hz) |
| Nominal output current | 75.5 A per phase |
| Max. reactive power | 50 kvar |
| Battery voltage (DC) | 200–980 VDC (HV) |
| DC input current | 150 A max. usable |
| MPPT / PV strings | Not applicable (AC coupling) |
| Voc/Isc PV | Not applicable (external PV inverter used) |
| Topology / Isolation | Three-phase, active cooling / no galvanic separation in AC |
| Protection | IP65 / NEMA 4X; grid monitoring; thermal protection; integrated RCM |
| Dimensions (W×H×D) | 772×837.3×443.8 mm |
| Weight | 104 kg |
| Noise | 69 dB(A) typical |
| Communications | Modbus TCP, Speedwire (Ethernet), WLAN; Sunny Portal (ennexOS) integration |
| Energy management | Self-consumption, max. load blocking, multi-use (no grid back-up) |
| Warranty | 10 years (5 + 5 with registration) |
Compatibilities
Direct compatibility: HV lithium batteries (200–980 V) with CAN/Modbus communication approved by SMA; SMA photovoltaic inverters in AC coupling; SMA EV Charger Business (monitoring).
Accessories and ecosystem: Sunny Island X Connection Box (10×/16×), SMA Hybrid Controller, SMA Data Manager M (System Manager), Energy Meter COM-EMETER-A-20 / COM-EMETER-B-20, Janitza UMG604, synchronization module and Automatic Transfer Switch for generator management in off-grid installations.
With 50 kW, open connectivity, and 150 A battery current, the SMA Sunny Island X 50kW SI50-20 Three-phase HV Inverter Charger is the robust and efficient choice for industrial high-voltage storage solutions without back-up.
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High Voltage Three-Phase Inverter Charger SMA Sunny Island X 50kW SI50-20
