SMA Sunny Tripower X 15kW STP15-50 Three-Phase Solar Inverter
Modelo: STP15-50- Sku: SMAINVE034
- Vendor: SMA
Specifications
Product Description
The SMA Sunny Tripower X 15kW STP15-50 Three-Phase Solar Inverter is designed for grid-connected installations that require higher power and advanced management. It integrates a system manager that coordinates up to five inverters and an energy meter, with native access to Sunny Portal (ennexOS) for high-level remote monitoring and parameterization. With a maximum efficiency of 98.2%, 3 high-current MPPTs, and ArcFix protection, it offers an exceptional balance between productivity, safety, and total cost of ownership.
Main Features
- 15 kW AC power at 230/400 V three-phase; permissible PV power 22.5 kWp STC for efficient oversizing.
- 3 independent MPPTs with 2 strings per MPPT, 24 A per tracker (max Isc 35 A) for new generation modules.
- MPPT window 257–800 V (nominal Vdc 580 V) and maximum input voltage 1000 V for flexible designs.
- Maximum efficiency 98.2% (EU 97.8%) with OptiCool cooling and sound level < 65 dB(A).
- Comprehensive safety: SMA ArcFix (AFCI), optional type II DC protection, RCMU monitoring, and reverse polarity.
- Connectivity and control: 2×Ethernet, WLAN, RS485 (optional), Modbus SMA/SunSpec, Speedwire, 6 digital inputs, and multifunction relay.
Advantages or Benefits
- Feed-in and reactive power control with SMA Dynamic Power Control (zero injection, Q(U)), ideal for regulatory compliance.
- Higher actual production thanks to ShadeFix and I-V diagnosis that detects string deviations in seconds.
- Robust outdoor operation: IP65 enclosure, −25 °C to +60 °C, and 100% RH without condensation.
- Assured availability with SMA Smart Connected: alerts and proactive diagnostics to reduce OPEX.
- Scalability: integrated manager for up to 5 inverters (135 kVA) and 1 Energy Meter; ready for future functions via expansion module.
Purpose or Applications
Designed for three-phase self-consumption in businesses, hotels, wineries, farms, workshops, and small industrial plants. Suitable for energy communities and low-medium power PPAs. Does not include back-up function or integrated battery; storage and off-grid operation are implemented via specific SMA controllers and solutions.
Technical Specifications
| Nominal AC power | 15 kW (230/400 V, 3-phase) |
| Max. PV power (STC) | 22.5 kWp |
| Max. DC voltage | 1000 V |
| MPPT window | 257–800 V (nominal Vdc 580 V) |
| MPPT / strings per MPPT | 3 / 2 |
| Max. current per MPPT | 24 A (max Isc 35 A) |
| Max. efficiency / EU | 98.2% / 97.8% |
| Nominal output / In | 15 kVA / 21.7 A |
| Degree of protection | IP65, OptiCool, < 65 dB(A) |
| Communications | 2×Ethernet, WLAN, RS485 (optional), Modbus/SunSpec, Speedwire |
| Functions | ShadeFix, ArcFix, Smart Connected, 6 digital inputs, multifunction relay |
| Dimensions / Weight | 728×762×266 mm / 35 kg |
| Temp. range / Humidity | −25 °C to +60 °C / 100% without condensation |
| Certifications | CE, EN 50549-1/-2, VDE-AR-N 4105/4110, UKCA |
Compatibilities
Direct compatibility (SMA ecosystem): Sunny Home Manager 2.0, SMA Data Manager M, SMA Energy Meter, SMA EV Charger (EVC7.4-1AC-10 / EVC22-3AC-10), SMA Hybrid Controller; SMA Modbus and SunSpec protocols. Official accessories: DC surge protection kits (DC_SPD_KIT6-10 / DC_SPD_KIT7_T1T2), RS485 Module (MD.485-40), and Sensor Module (MD.SEN-40).
SMA Sunny Tripower X 15kW STP15-50 Three-Phase Solar Inverter offers power, reliability, and intelligence to bring your self-consumption plant to maximum performance with total control and industrial-level safety.
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SMA Sunny Tripower X 15kW STP15-50 Three-Phase Solar Inverter





