SMA Sunny Boy 3.8 Inverter Smart Energy SMA-SBSE3.8-US-50

SMA Sunny Boy 3.8 kW Smart Energy Inverter (Model SBSE3.8‑US‑50) is a powerful hybrid solar inverter designed for residential PV systems. Combining PV and battery in one, it delivers up to 3 840 W AC output at 240 VAC (or 3 328 W at 208 VAC), with support for up to **200% DC oversizing**.

Equipped with three independent MPPT channels, each rated for 15 A input current and compatible with strings up to 600 V DC, this inverter offers flexible module configurations and advanced energy harvesting. It features integrated Rapid Shutdown (SunSpec RSD) and AFCI/GFI protection. :contentReference[oaicite:15]{index=15}

With peak efficiency of **97.5%** and built-in communication via Ethernet and WLAN, it enables seamless system monitoring and performance optimization. This unit also supports SMA's ShadeFix feature, predictive diagnostics (Smart Connected), and ease of commissioning through the SMA 360° mobile app. :contentReference[oaicite:16]{index=16}

The Sunny Boy Smart Energy inverter is designed to deliver energy security: it can power dedicated circuits in backup mode during outages—supported optionally with SMA Backup Secure. It comes standard with a **10‑year warranty**, extendable to 25 years. :contentReference[oaicite:17]{index=17}

Made in Germany and built for challenging climates, it withstands temperatures from −13 °F to +140 °F (‑25 °C to +60 °C) with natural convection cooling, and carries an IP65 / Type 3S rating for outdoor installation. :contentReference[oaicite:18]{index=18}