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SMA Sunny Tripower 3kW Three-Phase Solar Inverter STP3.0-3AV-40

Modelo: STP3.0-3AV-40

Sku: SMAINVE023
Vendor: SMA

€1.148,51 EUR

€918,81 EUR

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SMA Sunny Tripower 3kW Three-Phase Solar Inverter STP3.0-3AV-40 with 2 MPPT and 98.2% efficiency, IP65 and WiFi/Ethernet/Modbus connectivity. Ideal for residential self-consumption up to 6 kWp with Smart Connected monitoring.

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Specifications

Product Description

The SMA Sunny Tripower 3kW STP3.0-3AV-40 Three-Phase Solar Inverter takes domestic photovoltaic generation to a new level of performance and reliability. This 3 kW three-phase string inverter combines high-efficiency electronics (max. 98.2%) with a compact 17 kg design and IP65 enclosure, perfect for outdoor installation. Thanks to its 2 independent MPPTs, cloud monitoring, and proactive SMA Smart Connected service, it is a robust, silent self-consumption solution that is very easy to commission from a mobile or tablet browser.

Main Features

Continuous output power 3 kW (3 kVA) on three-phase grid 3/N/PE 230/400 V.
2 MPPT with 1 string per tracker; excellent adaptation to roofs with two orientations.
Maximum efficiency 98.2% and European efficiency ~96.5% for higher annual yield.
Wide MPP window (approx. 140–800 V) and max. Voc 850 V for strings with high-power modules.
Integrated connectivity: WLAN/Ethernet (Speedwire), Webconnect, and Modbus (SMA/SunSpec).
Shade management OptiTrac/ ShadeFix and compatibility with TS4-R optimizers.
Transformerless design, convection cooling, typical noise level ~30 dB(A).

Advantages or Benefits

More energy and less loss: 98.2% efficiency and advanced MPP tracking to perform even with partial shading.
“Plug & play” installation: lightweight, SUNCLIX connectors, and web-based commissioning assistant.
Total control: monitor from Sunny Portal / Sunny Places with automatic alerts from SMA Smart Connected.
Outdoor durability: IP65, −25…+60 °C, and fanless for minimal maintenance.
Design flexibility: two MPPTs allow splitting the PV array (east/west) and optimizing production.

Purpose or Applications

Designed for three-phase homes and small businesses seeking a SMA 3 kW solar inverter for grid connection, capable of managing generators up to ~6 kWp with high efficiency. Ideal for residential self-consumption projects, installations with feed-in limitation, and roofs with two orientations or inclinations.

Technical Specifications

Nominal AC power	3 kW (3 kVA) · 3/N/PE 230/400 V
Max. / EU efficiency	98.2% / ~96.5%
Max. output current	3×4.5 A
MPPT / strings	2 MPPT · 1 string per MPPT
MPP range (Vmp)	≈ 140–800 V · Vmin/Vstart ≈ 125/150 V
Max. input voltage (Voc)	850 V
I_max / I_SC per input	12 A / 18 A
Topology / cooling	Transformerless / Natural convection
Protection	IP65, RCM, integrated DC/AC protections
Dimensions / weight	435×470×176 mm / 17 kg
Typical noise	~30 dB(A)
Operating temperature	−25…+60 °C (derating >45 °C approx.)
Communications	WLAN, Ethernet/Speedwire, Modbus SMA/SunSpec, Webconnect

Compatibilities

Direct (official) compatibility: SMA Energy Meter and Sunny Home Manager 2.0 for feed-in control and load management; SMA Smart Connected service; TS4-R module optimizers (via TS4-Gateway/communication).

Compatible accessories (not included): DC/AC Type II protections, SUNCLIX wiring and connectors, Modbus/SunSpec meters, and SMA smart plugs for automation.

With its combination of 2 MPPTs, 98.2% efficiency, and digital integration, the SMA Sunny Tripower 3kW STP3.0-3AV-40 Three-Phase Solar Inverter is a safe choice to maximize three-phase self-consumption at home.