SMA Sunny Tripower X 480V 25KW 90A String Inverter | STP 25-US-50
£2,764.58
Sale price
£2,764.58
Regular price
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SMA Sunny Tripower X 480V 25KW 90A String Inverter | STP 25-US-50
£2,764.58
Sale price
£2,764.58
Regular price
Shipping calculated at checkout.
STP 25-US-50
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Description
The SMA Sunny Tripower X STP 25-US-50 is an intelligent 25KW commercial string inverter featuring an integrated System Manager, three independent MPP trackers, and SMA ShadeFix string optimization for future-proof, maximum-yield commercial PV system design.
Key Features
- Integrated System Manager Monitors and controls up to 5 inverters with a maximum 150 kVA system capacity, featuring remote access via Sunny Portal powered by ennexOS and SMA Dynamic Power Control.
- Three Independent MPP Trackers Provides flexible array design with SMA ShadeFix string-level optimization and integrated I-V curve diagnostics for maximum energy yield.
- Advanced DC AFCI Arc-Fault Protection Certified to UL 1699B Ed. 1 with integrated SunSpec PLC signal for module-level rapid shutdown compliance in accordance with UL 1741:2021.
- SMA Smart Connected Monitoring Proactive monitoring and service solution reduces O&M costs and field service time, supported by the award-winning ennexOS energy management platform.
- High Corrosion Resistance IEC 61701 C5 corrosivity classification and Type 4X enclosure rating ensure reliable long-term performance in the harshest outdoor environments.
The STP 25-US-50 delivers 25,000W nominal AC output power at 98% CEC efficiency, accepting up to 37,500Wp DC array power across a 430–800V MPP voltage range with three independent MPP trackers rated at 24A maximum input current each. Its OptiCool variable-speed forced convection cooling maintains reliable thermal performance across a -25°C to +60°C operating range.
Certified to UL 62109-1, UL 1699B Ed. 1, UL 3741, and CAN/CSA 22.2 No. 62109-1:16/62109-2:16, and compliant with IEEE 1547:2018, UL 1741 SB, CA Rule 21, HECO Rule 14H, and ISO-NE, the Tripower X meets all major US grid interconnection requirements. Advanced grid support capabilities include Volt-VAr, Volt-Watt, Frequency-Watt, and Ramp Rate Control for full utility compliance.
Dual Ethernet ports, integrated WLAN, and SMA Modbus, SunSpec Modbus, and Speedwire data protocols are included as standard, alongside a multi-function relay, extension module slot, and 6 digital inputs for comprehensive system integration. A 10-year standard warranty with optional extensions of up to 20 years total provides long-term investment confidence.
Technical Specifications
| Specification | Details |
|---|---|
| Model | STP 25-US-50 |
| Nominal Output Power | 25,000W |
| Maximum Apparent Power | 25,000 VA |
| Maximum PV Array Power | 37,500 Wp |
| Maximum Input Voltage | 1000V |
| MPP Voltage Range | 430–800V |
| Minimum Input Voltage / Initial Input Voltage | 150V / 188V |
| Max Operating Input Current / Short-Circuit per MPP | 24A / 37.5A |
| Number of MPP Trackers / String Inputs per MPP | 3 / 2 |
| Nominal AC Voltage | 480V / 277V |
| AC Voltage Range | 244–305V |
| Maximum Output Current | 30A |
| Rated Grid Frequency / Range | 60Hz / 50–66Hz |
| Power Factor at Rated Power | 1 (adjustable 0.8 overexcited to 0.8 underexcited) |
| Output Phases / Line Connection | 3 / 3-(N)-PE |
| THD | <3% |
| CEC Efficiency | 98% |
| Topology | Transformerless |
| Cooling | OptiCool (forced convection, variable speed fans) |
| Operating Temperature Range | -25°C to +60°C (-13°F to +140°F) |
| Noise Emission (Typical) | 59 dB(A) |
| Enclosure Protection Rating | Type 4X (UL 50E) |
| Corrosivity Classification | IEC 61701 C5 |
| Max Relative Humidity | 100% non-condensing |
| Mounting | Vertical rack / wall mount to 15° from horizontal |
| DC Connection | Amphenol H4 Plus |
| AC Connection | Spring-cage terminal |
| Network Interfaces | Ethernet (2 ports), WLAN |
| Data Protocols | SMA Modbus, SunSpec Modbus, Speedwire |
| Dimensions (W x H x D) | 728 x 762 x 266 mm (28.7 x 30 x 10.5 in) |
| Weight | 77 lbs (35 kg) |
| Certifications | UL 62109-1, UL 1699B Ed. 1, UL 3741, CAN/CSA 22.2 No. 62109 |
| Grid Standards | IEEE 1547:2018, UL 1741 SB, CA Rule 21, HECO Rule 14H, ISO-NE |
| FCC Compliance | FCC Part 15 Class A |
| Standard Warranty | 10 Years |
| Optional Warranty Extension | +5 Years, +10 Years (max 20 Years total) |
Return policy
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.