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SMA Sunny TriPower X STP 25-US-50 > 25kW Grid-Tie 3-Phase Inverter for Commercial and Large Residential Applications - with DC Disconnect
SMA Sunny TriPower X STP 25-US-50 > 25kW Grid-Tie 3-Phase Inverter for Commercial and Large Residential Applications - with DC Disconnect

Our Price: $4,637.70
Warranty: 10 Years

Product Code: SMA-TRIPOWER-X-STP-25-US-50

Description Videos Datasheet

SMA Sunny TriPower X > 25,000 Watt Grid-Tie 3-Phase Inverter for Commercial and Large Residential Applications - with DC Disconnect

Integrated intelligence for future-proof system design.
Sunny Tripower X is the new innovative inverter solution for commercial PV systems. Providing three MPP trackers with SMA ShadeFix string optimization technology for optimal PV array design flexibility and maximum energy yields. SMAs proven integrated rapid shutdown support and reliable DC AFCI arc-fault protection ensure enhanced system safety. And now with the new integrated System Manager, powered by SMAs ennexOS cross-sector energy management platform, Sunny Tripower X becomes the centerpiece of the SMA Energy System Business for comprehensive commercial energy systems now and in the future.

Suitable for 1,000 V DC applications, the Sunny Tripower X allows for flexible design and a lower levelized cost of energy.


Model Sunny TriPower X STP 25-US-50
Series Sunny Tripower X
Manufacturer SMA


Type Commercial and Large Residential Grid-Tie Inverter
Operating Temperature Range -25C to +60C (‒13F to +140F)
Topology / cooling concept Transformerless / OptiCool (forced convection, variable speed fans)
Enclosure protection rating Type 4 (as per UL 50E)
Maximum permissible value for relative humidity (non-condensing) 100 %
Mounting type Vertical rack / wall mount to 15 from horizontal
DC connection / AC connection Amphenol H4 Plus / spring-cage terminal
Dimensions (W x H x D) 28.7" x 30" x 10.5"
Device Weight 77 lbs.
Shipping Method Freight
Warranty 10 Years (standard) / 15 and 20 Years (Optional)

Input (DC)

Maximum array power 37,700 Wp STC
Max Voltage 1000 V
Peak Power Tracking Voltage 430 V - 800 V
Min Start Voltage 150 V / 188 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
MPP trackers / strings per MPP input 3 / 2

Output (AC)

Maximum Output Power 25,000 W
Maximum apparent power 25,000 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 30 A
Power factor at rated power / adjustable displacement 1 / 0.0 overexcited to 0.0 underexcited
Output phasess / line connection 3 / 3-(N)-PE
Harmonics (THD) < 3 %

Certificates and approvals (pending)

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 & B
Grid interconnection standards UL 1741 SB, IEEE 1547:2018, compliance to SRDs: CA Rule 21, HECO Rule 14H, ISO-NE

Integrated system manager

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) Optional
Type designation STP 20-US-50


Integrated system manager
  • Monitoring and control for up to 5 inverters (max. 150 kVA)
  • Remote access with Sunny Portal powered by ennexOS
  • SMA Dynamic Power Control
Enhanced safety
  • Integrated SunSpec PLC signal for module-level shutdown
  • Advanced DC AFCI arc-fault protection
  • Optional DC type 2 and type 1+2 surge protection
Maximum yields
  • Three MPP trackers for flexible array design
  • SMA ShadeFix string level optimization
  • Intelligent string performance monitoring and I-V curve diagnostics
Smart monitoring, control, service
  • SMA Smart Connected proactive monitoring and service solution
  • SMA ennexOS cross-sector energy management platform
  • Centerpiece of the proven SMA Energy System Business

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