SMA Sunny Tripower Core1 33kW 480V Three-Phase Inverter

The SMA Sunny Tripower Core1 (STP33-US-41) is a transformerless three-phase grid-tie inverter engineered for large commercial and utility-scale PV systems. It delivers 33 kW of AC output at 480 VAC with 97.5% CEC efficiency, six independent MPPT trackers, and a 150 V to 1000 V MPPT operating range. Supporting up to 50000 Wp STC array power and a 1000 VDC maximum input, it combines OptiCool cooling, DC AFCI protection, and advanced grid support in a rugged NEMA 4X enclosure.

Key Features:

• 33 kW output, 97.5% CEC efficiency
• Three-phase, 480 V / 277 V WYE, 60 Hz
• 6 MPPT trackers, 2 strings per input
• MPPT range 150 V to 1000 V, 1000 VDC max
• Max array 50000 Wp STC, 40 A output current
• DC AFCI, DC/AC surge protection Type 1+2
• OptiCool forced-convection variable-speed fans
• NEMA 4X, -13°F to 140°F operation
• Ethernet, RS485, Modbus, SunSpec communication
• UL 1741, IEEE 1547-2018, CSA certified, 10-year warranty

Ideal for large commercial and industrial rooftop or ground-mount solar arrays requiring high-power three-phase output. With ShadeFix optimization, I-V curve diagnostics, and Integrated Plant Control, it integrates with SMA monitoring platforms and supports advanced grid functions including Volt-VAr, Volt-Watt, and rapid shutdown. Order the STP33-US-41 (also listed as STP33US41) from Circuit Solar, in stock in Canada and shipped from Red Deer, AB.