SMA Sunny Highpower PEAK3 125-US-21 125kW 480VAC Solar Inverter
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Estimated Delivery:Nov 04 - Nov 08
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SMA Sunny Highpower PEAK3 125-US-21 125kW 480VAC Solar Inverter
SMA Sunny Highpower PEAK3 125-US-21 — 125kW 1500VDC String Inverter
The SMA Sunny Highpower PEAK3 125-US-21 is a 1,500 VDC, 125 kW string inverter designed for large-scale PV projects that need high power density, a modular architecture, and a cost-optimized path to energization. Built for fast installation and commissioning, this 480 VAC, three-phase inverter helps PV integrators and project teams simplify deployment while supporting utility-scale performance requirements.
SMA also brings its field-proven Smart Connected technology to the PEAK3 platform, helping streamline O&M and reduce lifetime service costs. The PEAK3 power plant solution is powered by the ennexOS cross-sector energy management platform, which earned the 2018 Intersolar smarter E AWARD.
Key Features
- Cost Effective: Modular architecture helps reduce BOS and maximize system uptime, while the compact design and high power density improve transportation and logistical efficiency
- Maximum Flexibility: Scalable 1,500 VDC building block with best-in-class performance; flexible architecture supports large ground mount projects and efficient land usage
- Simple Install & Commissioning: Ergonomic handling and simple connections support quick installation; centralized commissioning and control with SMA Data Manager
- Highly Innovative: SMA Smart Connected helps reduce O&M costs and simplify field service; powered by the award-winning ennexOS cross-sector energy management platform
- 25-Year Design Life
Technical Specifications
| Parameter | Value |
|---|---|
| Model / MPN | 3-125-1500-2-21 (SHP 125-US-21) |
| Manufacturer | SMA |
| Nominal AC Power | 125 kW |
| Maximum Apparent Power | 125 kVA |
| Maximum Array Power (DC) | 250 kWp |
| Maximum System Voltage | 1500 Vdc |
| Rated MPP Voltage Range | 705 V – 1450 V |
| MPPT Operating Voltage Range | 684 V – 1500 V |
| MPP Trackers | 1 |
| Maximum Operating Input Current | 180 A |
| Maximum Input Short-Circuit Current | 325 A |
| Nominal AC Voltage | 480 V |
| Output Phases / Line Connections | 3 / 3-PE |
| Compatible Transformer Winding | Wye-grounded |
| Maximum Output Current | 151 A |
| Rated Grid Frequency | 60 Hz |
| Grid Frequency Range | 50 Hz, 60 Hz / -6 Hz … +6 Hz |
| Power Factor at Rated Power | 1 / 0.8 leading … 0.8 lagging |
| Harmonics (THD) | <3% |
| CEC Efficiency | 98.5% |
| Topology | Transformerless |
| Cooling Concept | OptiCool (forced convection, variable speed fans) |
| Enclosure Protection Rating | Type 4X |
| Operating Temperature Range | -25°C … +60°C (-13°F … +140°F) |
| Storage Temperature Range | -40°C … +70°C (-40°F … +158°F) |
| Audible Noise Emission | <69 dB(A) at full power @ 1m and 25°C |
| Max. Relative Humidity | 100% (non-condensing) |
| Device Dimensions (W/H/D) | 770 / 830 / 462 mm (30.3 / 32.7 / 18.2 in) |
| Device Weight | 99 kg (218 lbs) |
| Mounting | Rack mount |
| DC Connection | Terminal lug (up to 600 kcmil CU/AL) |
| AC Connection | Screw terminal (up to 300 kcmil CU/AL) |
| Communication | SMA Speedwire (2x RJ45), SMA Modbus, SunSpec Modbus |
| Data Protocols | SMA external API, Modbus, FTP |
| Certifications | UL 62109, UL 1998, CAN/CSA-C22.2 No.62109, FCC Part 15 Class A |
| Grid Interconnection Standards | IEEE 1547:2018, UL 1741-SA, CA Rule 21, HECO Rule 14H, UL1741SB |
| Advanced Grid Support | L/HFRT, L/HVRT, Volt-VAr, Volt-Watt, Frequency-Watt, Ramp Rate Control, Fixed Power Factor |
| Design Life | 25 years |
Protection & Safety Features
- Ground fault monitoring: Riso / Differential current
- DC reverse polarity protection
- AC short circuit protection
- Monitored surge protection (Type 2): DC / AC
- Protection class / overvoltage category (UL 840): I / IV
Monitoring
- SMA Sunny Portal — No cost for the lifetime of the system
- SMA Smart Connected — No cost on inverters under warranty
- Integrated Plant Control / Q on Demand 24/7
Warranty
- Standard Warranty: 5 years
- Optional Extensions: 10 / 15 / 20 / 25 years
- SMA Smart Connected monitoring included at no cost during warranty period
Documentation
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.
