SMA STP 30-US-50 Sunny Tripower X String Inverter
The SMA STP 30-US-50 Sunny Tripower X String Inverter is engineered to set a new benchmark in versatile, intelligent energy management for commercial PV systems. Its advanced features promise future-proof system designs and maximum energy yields.
- Features three MPP trackers with SMA ShadeFix optimization for exceptional design flexibility.
- Integrated System Manager powered by ennexOS for simplified monitoring and control.
- Advanced safety with SunSpec PLC signal for module-level shutdown and DC AFCI arc-fault protection.
- Enhanced energy yields with SMA Smart Connected proactive service and support.
- Robust design catering to future expansions and dynamic grid support.
Technology and Overview
Equipped with SMA’s ennexOS platform, the STP 30-US-50 provides innovative cross-sector management of energy resources, driving efficiency and reliability in commercial solar energy systems.
Installation and Compatibility Overview
Installation is streamlined thanks to the inverter's integrated system manager, which facilitates centralized commissioning and system control for up to 5 inverters.
Benefits and Applications Overview
Optimize your investment with the STP 30-US-50, designed for maximum yield and minimal operational costs, making it a go-to solution for commercial solar installations.
Specifications
| Specification | Value |
| Model No. | STP 30-US-50 |
| Maximum PV array power | 45000 Wp |
| Maximum input voltage | 1000 V |
| MPP voltage range | 515 V to 800 V |
| Minimum input voltage / initial input voltage | 150 V / 188 V |
| Maximum operating input current / short-circuit current per MPP tracker | 24 A / 37.5 A |
| Number of independent MPP trackers / string inputs per MPP tracker | 3 / 2 |
| Nominal output power | 30000 W |
| Maximum apparent power | 30000 VA |
| Nominal AC voltage | 480 V / 277 V |
| AC voltage range | 244 V to 305 V |
| Rated grid frequency / range | 60 Hz / 50 Hz to 66 Hz |
| Maximum output current | 36 A |
| Power factor at rated power / adjustable displacement | 1 / 0.8 overexcited to 0.8 underexcited |
| Output phases / line connection | 3 / 3-(N)-PE |
| Harmonics (THD) | < 3 % |
| CEC efficiency | 98.0% |
| Load rated DC disconnect | Standard feature |
| Ground fault monitoring / grid monitoring | Standard feature |
| DC reverse polarity protection / AC short-circuit protection | Standard feature |
| All-pole sensitive residual-current monitoring unit | Standard feature |
| Protection class / overvoltage category | I / III |
| DC AFCI arc-fault protection | Standard feature |
| SunSpec PLC signal for rapid shutdown | Standard feature |
| DC surge protection type 2 / DC surge arrester type 1 2 | Optional feature |
| Dimensions (W/H/D) | 728 mm / 762 mm / 266 mm (28.7 in / 30 in / 10.5 in) |
| Device Weight | 35 kg / 77 lbs |
| Operating temperature range | -25°C to 60°C (?13°F to 140°F) |
| Noise emission (typical) | 59 dB(A) |
| Topology / cooling concept | Transformerless / OptiCool (forced convection, variable speed fans) |
| Enclosure protection rating | Type 4X (as per UL 50E) |
| Corrosivity classification according to IEC 61701 | C5* |
| Maximum permissible value for relative humidity (non-condensing) | 1 |
| Mounting type | Vertical rack / wall mount to 15° from horizontal |
| DC connection / AC connection | Amphenol H4 Plus / spring-cage terminal |
| LED indicators (status / fault / communication) | Standard feature |
| Network interfaces: Ethernet / WLAN | Standard feature(2 ports) |
| Data protocols: SMA Modbus / SunSpec Modbus / Speedwire | Standard feature |
| Multi-function relay / Extension module slot / Digital inputs | Standard feature (6 inputs) |
| SMA ShadeFix string level optimization | Standard feature |
| Integrated I-V curve diagnostics 1) | Standard feature |
| Integrated Plant Control / Q on Demand 24/7 | Standard feature |
| SMA Smart Connected (proactive monitoring and service support) | Standard feature |
| Standard warranty | 10 years |
| Optional warranty extensions (total warranty coverage cannot exceed 20 years) | 5 years, 10 years |
| Certificates and approvals | UL 62109-1, UL 1699B Ed. 1, CAN/CSA 22.2 No. 62109-1:16 / 62109-2:16, PV Rapid Shutdown System Equipment in accordance with UL1741:2021 |
| FCC compliance | FCC Part 15 Class A |
| Grid interconnection standards | UL 1741 SB, IEEE 1547:2018, compliance to SRDs: CA Rule 21, HECO Rule 14H, ISO-NE |
| Maximum number of supported inverters / energy meters | 5 / 1 |
| Maximum system power PV inverters (nominal AC power) | 150 kVA |
| Centralized commissioning of all devices in the system | Standard feature |
| Remote parameterization of SMA devices | Standard feature (via Sunny Portal powered by ennexOS) |
| SMA Dynamic Power Control (e.g. zero export / Volt-VAr) 2) | Optional feature |
