SMA Sunny Boy 3kW Single-Phase Solar Inverter SB3.0-1AV-41

Product description

The SMA Sunny Boy 3kW Single-Phase Solar Inverter SB3.0-1AV-41 is a string inverter for grid connection (on-grid inverter) designed for residential self-consumption projects seeking maximum reliability, full connectivity, and solid performance on small and medium roofs. With 3 kW (3 kVA) nominal power, max. efficiency of 97%, and transformerless design with convection cooling, it offers silent operation, low maintenance, and very simple integration into the SMA digital ecosystem (Sunny Portal & Sunny Places) thanks to Webconnect, WLAN/Ethernet, and Modbus (SMA/SunSpec). Its dual MPPT tracker with two strings per input (A/B) enables flexible configurations and optimal energy utilization even with partial shading via OptiTrac Global Peak or the use of TS4-R optimizers.

Main features

• Nominal AC power: 3 kW (3 kVA) single-phase at 230 V; max. output current 16 A.
• 2 independent MPPTs (A/B), 2 strings per MPPT; max. input voltage 600 V.
• Wide MPP window: 110–500 V (Vmp); start voltage 125 V and minimum 100 V.
• Max. current per input and per string: 15 A / 15 A.
• Performance: 97% max. (EU ~96.4%); power factor 1, adjustable 0.8 ind…0.8 cap.
• Protection IP65, fanless, typical noise level 25 dB; weight 17.5 kg (single-person installation).
• Connectivity: WLAN, Ethernet (Speedwire), Modbus SMA/SunSpec, Webconnect; SMA Smart Connected service with proactive monitoring and automatic notifications.

Advantages or benefits

• Optimized self-consumption: dynamically limits active power to achieve zero feed-in and maximize local energy use.
• Design flexibility: 2 MPPT with 2 strings per input allow operation with different orientations or shading.
• Quick installation: compact format (435×470×176 mm), SUNCLIX connectors, and web-based commissioning assistant via mobile.
• Reliability and durability: robust IP65 construction, transformerless, and natural convection for reduced maintenance.
• Total transparency: cloud monitoring (Sunny Portal/Places), automatic reports, and preventive support with Smart Connected.
• Reference brand: SMA technology with broad compatibility and energy management ecosystem.

Purpose or applications

Aimed at single-family homes, townhouses, and small businesses with photovoltaic generators up to ~5.5 kWp, the SB3.0-1AV-41 is ideal for self-consumption installations with smart metering, feed-in control, and future expansions with SMA storage solutions. Its MPP range from 110 V enables shorter strings on roofs with limited space or multiple orientations.

Technical specifications

Compatibilities

Direct compatibility: SMA Energy Meter and Sunny Home Manager 2.0 for feed-in control and self-consumption optimization; monitoring on Sunny Portal and Sunny Places with SMA Smart Connected.

Accessories and ecosystem (not included): TS4-R optimizers per module, SMA smart plug, DC/AC type II protections, SUNCLIX cabling, and Modbus/SunSpec meters.

Robust, connected, and efficient, the SMA Sunny Boy 3kW Single-Phase Solar Inverter SB3.0-1AV-41 is a benchmark solution for residential self-consumption that combines an IP65 string inverter, 97% efficiency, and SMA Smart Connected services for stable long-term performance.