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.