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title: "SMA Sunny Tripower 125, Powerful 125kW Inverter"
description: "Maximise project returns with the Sunny Tripower 125. 125 kW output and 98.1% efficiency ensure optimal performance for large-scale installations."

type: product_page

---

# SMA Sunny Tripower 125 (STP125-70) - Art.No.: 3-125-1100-1-70

## Specifications

- **Brand**: SMA
- **HS code**: 85044084
- **Manufactor**: SMA
- **Net Height**: 360 CENTIMETER
- **Net Length**: 795 CENTIMETER
- **Net Weight**: 96 KILOGRAM
- **Net Width**: 1020 CENTIMETER
- **Origin**: China
- **Arc-fault circuit interrupter**: Yes
- **Display**: Yes
- **Ingress Protection**: IP65
- **Max. input power**: 187500 WATT
- **Max. output apparent power**: 125000 VOLTAMPERE
- **Max. output current**: 181.1 AMPERE
- **Max. output power**: 125000 WATT
- **Number of MPPT**: 12
- **Number of phases**: 3 phase
- **System**: SMA Sunny Tripower
- **Type**: String
- **Warranty in Years**: 5

## SMA Sunny Tripower 125 (STP125-70)


The SMA Sunny Tripower 125 (STP125-70) is a powerful string inverter, specifically designed for large-scale commercial and utility projects. This device efficiently converts the DC power generated by a larger PV system into AC power and is optimised for maximum yield in complex project environments.


### Key Features


- **Nominal AC power of 125 kW**: Highly suitable for large PV systems.
- **12 independent MPP trackers:** Offers high flexibility in system design and minimises yield losses due to shading or uneven orientations.
- **DC input voltage up to 1000 V:** Enables long string designs, which reduces cabling costs.
- **Active cooling (OptiCool)**: Ensures reliable operation and a long service life, even under high ambient temperatures.
- **SMA Smart Connected:** Automatic monitoring and communication of inverter faults.


### Key Benefits


- **Maximum Energy Efficiency: **A high European Efficiency of 98.1% guarantees optimal energy yield from the installation.
- **Flexible System Integration:** The 12 MPP trackers provide excellent design freedom for installations on complex roof structures or with varying orientations.
- **Lower Operational Costs (OPEX):** The high power density and the possibility of long strings reduce installation and cabling costs per kilowatt peak.
- **Advanced Monitoring:** Integrated functionalities for string fault detection and monitoring via SMA's Smart Connected service minimise downtime.
- **Durability and Reliability:** OptiCool technology and a robust IP65 enclosure ensure long-term and reliable operation in diverse weather conditions.


### Applications


This string inverter is extremely well-suited for large-scale commercial PV projects, such as large corporate building roofs, distribution centres, and ground-mounted solar installations in the utility sector. The high power class and flexible MPP tracking make this product ideal for complex projects where maximum yield and reliability are crucial.


### Warranty and Durability


The SMA Sunny Tripower 125 comes with a standard manufacturer's warranty of 5 years. The inverter features an IP65 protection class, which guarantees complete protection against dust and water jets. The safe operating temperature range is between -25 °C and +60 °C, underscoring its operational reliability under heavy-duty conditions.

## Downloads

- [Sunny Tripower 125 70 Datasheet EN](https://cdn.estg.eu/p/e/1/8/c/e18cf36a50591d3de9ab991cefd637ff335ff0a8_Sunny_Tripower_125_70_Datasheet_EN.pdf)