SMA STP 20-50 20kW Three-Phase Solar Inverter
The SMA Sunny Tripower X 20 (STP 20-50) is a 20kW three-phase string inverter for commercial solar systems. It has 3 independent MPP trackers with 2 strings each, SMA ShadeFix to increase yield in shade and a built-in system manager, with WiFi and LAN communication.
Key specifications
- Rated AC output: 20kW, three phase
- Max. PV array power: 30kWp
- MPP trackers: 3, 2 strings per tracker, 24A per tracker
- MPP voltage range: 345 to 800V, 1000V max. input
- Efficiency: 98.2% max., 97.9% European
- Protection: IP65
- Dimensions: 728 x 762 x 266mm, 35kg
- Standard: AS/NZS 4777.2:2020, CEC listing expiry 06/02/2027
- Warranty: 5 years standard, extendable (SMA warranty terms)
- Model: STP 20-50
Suits
Commercial three-phase solar installations.
Dimensions and packing
35kg











