SUNNY TRIPOWER 125

The SMA Sunny Tripower 125 is a 125 kW three-phase photovoltaic inverter designed for large commercial and industrial PV systems. With 12 independent MPPTs, outstanding efficiency and advanced communication capabilities, it delivers maximum energy production while seamlessly integrating into modern energy management systems.
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The Sunny Tripower 125 is part of the SMA Commercial Energy Solution, developed to maximize the performance and profitability of commercial and industrial photovoltaic installations.

Delivering 125 kW of rated output power, it is ideally suited for decentralized PV systems ranging from large industrial rooftops to utility-scale ground-mounted power plants.

Its 12 independent MPPT trackers with 24 string inputs provide exceptional design flexibility, allowing different module orientations, inclinations and string configurations while maximizing energy production from every PV array.

Integrated SMA ShadeFix technology continuously optimizes the operating point of the PV strings, reducing production losses caused by partial shading without requiring additional hardware.

To maximize system availability, SMA Smart Connected continuously monitors inverter operation, detecting potential faults at an early stage and helping reduce maintenance costs and downtime.

Safety is enhanced through the integrated SMA ArcFix (AFCI) arc-fault protection, DC Type I+II and AC Type II surge protection, residual current monitoring and I-V curve diagnostics, ensuring reliable operation under demanding conditions.

Built-in Ethernet, Wi-Fi, SMA Speedwire, SMA Modbus and SunSpec Modbus enable seamless integration with SCADA systems, monitoring platforms, battery storage solutions and EV charging infrastructure.

With a maximum efficiency of 98.4%, IP65 protection and OptiCool active cooling technology, the Sunny Tripower 125 offers outstanding reliability and long-term performance for demanding photovoltaic projects.

Key Features

  • 125 kW rated output power
  • Supports up to 187.5 kWp PV array power
  • 12 independent MPPTs with 24 string inputs
  • Maximum efficiency of 98.4%
  • SMA ShadeFix optimization technology
  • SMA Smart Connected monitoring service
  • SMA ArcFix integrated AFCI protection
  • Ethernet, Wi-Fi, Speedwire, SMA Modbus and SunSpec Modbus
  • IP65 protection rating
  • OptiCool active cooling system

Applications

  • Commercial PV installations
  • Industrial rooftops
  • Utility-scale solar plants
  • Industrial self-consumption systems
  • Energy communities
  • Grid-connected PV plants
  • Battery energy storage integration
  • EV charging infrastructure

Advantages

  • Maximum energy yield
  • Flexible system design
  • Optimized performance under partial shading
  • Continuous intelligent monitoring
  • Advanced electrical protection
  • Easy integration with energy management systems
  • Wide communication compatibility
  • Reliable operation with minimal maintenance

Technical data – SMA Sunny Tripower 125
DC input
Maximum PV array power 187,500 Wp STC
Maximum input voltage 1,100 V
MPP voltage range at rated power 450 V – 800 V
Rated input voltage 600 V
MPP voltage range 180 V – 800 V
Minimum input voltage 180 V
Initial input voltage 200 V
Maximum usable input current per MPP tracker 30 A
Maximum short-circuit current per MPP tracker 40 A
Number of independent MPP trackers 12
Strings per MPP tracker 2
AC output
Rated power 125,000 W
Rated apparent power 125,000 VA
Maximum apparent power 125,000 VA
Nominal AC voltage 230 V / 400 V
AC voltage range 320 V – 480 V
Rated grid frequency 50 Hz
Grid frequency range 45 Hz – 65 Hz
Rated output current 181.1 A
Maximum output current 181.1 A
Power factor at rated power 1
Adjustable displacement power factor 0.8 overexcited – 0.8 underexcited
Total harmonic distortion < 3% at rated power
Feed-in phases 3
AC connection 3-N-PE
Efficiency
Maximum efficiency 98.4%
European efficiency 98.1%
Protective devices
Input-side disconnection point Included
Ground fault monitoring Included
Grid monitoring Included
DC reverse polarity protection Included
AC short-circuit protection Included
All-pole sensitive residual-current monitoring Included
Protection class Class I
Overvoltage category AC: III / DC: II
Arc-fault circuit interrupter SMA ArcFix (AFCI), compliant with IEC 63027
I-V array diagnostics Included
Surge protection DC type I+II / AC type II
General data
Dimensions (W × H × D) 1,020 × 795 × 360 mm
Weight Approx. 96 kg
Operating temperature range −30°C to +60°C
Maximum noise emission at 1 m < 71.1 dB(A)
Topology No galvanic isolation
Cooling concept OptiCool
Degree of protection IP65
Features, communication and mounting
DC connection Sunclix
AC connection Terminal lug, up to 240 mm²
LED indicators Status, fault and communication
Ethernet 2 ports
Wi-Fi Included
Communication protocols SMA Modbus, SunSpec Modbus and Speedwire
Multifunction relay Floating change-over contact
Digital inputs for power limitation 4
Digital inputs for quick stop 2
Mounting type Wall mounting or rack mounting
Warranty and model
Standard warranty 5 years
Warranty extensions 10, 15 or 20 years
Model STP 125-70

Note: input voltages of up to 1,000 V are possible; however, this may result in reduced power output.

Ficha producto SMA STP 125

SMA STP 125 Data Sheet

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