SMA 3kW-1Ph (SB3.0-1AV-41 (AS4777-2 2020))
The SB3.0-1AV-41 (also marketed as Sunny Boy 3.0) is a compact, high-efficiency single-phase string inverter from SMA for residential rooftop solar PV installations. It converts DC from solar panels into grid-compliant AC power (3 kW output), and is designed for small to medium home solar systems. It features dual MPPT inputs, transformer-less design, IP65 weather-protection rating, and lightweight/compact body — making it suitable for wall-mount installations, even outdoors under shelter.
- Product Code:18862
- Model No.:SB3.0-1AV-41 (AS4777-2 2020)
Efficient & Reliable Power Conversion
- Converts solar DC into AC with a high efficiency — up to ≈ 97% EU-weighted / 96.4% European efficiency.
- Transformerless topology reduces losses and keeps the inverter compact/lightweight.
Dual-MPPT with Flexible PV String Input
- Provides 2 independent MPPT trackers — useful when PV strings are oriented differently or when there’s partial shading.
- Supports a wide DC input voltage range (MPP range ~ 110–500 V DC, startup threshold ~ 125 V DC), giving flexibility in PV array design.
Compact, Lightweight & Easy Installation
- Weight is around 17.5 kg, making wall-mounting and handling easier (one-person installation possible).
- Compact dimensions — suitable for small rooftops or utility boxes; fits well even with limited space.
Grid-Compliance & Safety / Smart Features
- Meets standard grid-tie inverter requirements (grid voltage 180–280 V AC, 50 Hz frequency), making it suitable for standard household/grid connection.
- Integrated protections: DC over/under-voltage, short-circuit protection, anti-islanding, reverse polarity protection, etc.
- Supports remote monitoring / connectivity (via SMA’s monitoring & web interface, “SMA Smart Connected”), enabling easy commissioning and performance monitoring.
Durable & Outdoor-Ready Build
- Enclosure rated IP65, offering dust and water-resistance — so the inverter can be installed outdoors (or in semi-protected rooftop/utility areas), which is valuable in varied climates including Indian weather.
- Wide operational ambient temperature range (approx. –25 °C to +60 °C), making it adaptable to different climate conditions.
- Rating (kW) : 3,000 W (3.0 kW)
- MPPT : 2 independent MPPT inputs
- Dimension (W/D/H) : 435*176*470
- Weight (kg) : 17.5
- Product Warranty (Years) : 5 years
- MPPT : IP65 (suitable for outdoors)

































