Sigenergy Controller – Field Configurable 3.8-11.5kW, 11040057

The Sigenergy Controller – Field Configurable 3.8-11.5kW (Part # 11040057), also known as the SigenStor EC SP US (Energy Controller Split Phase US), is a versatile, single-SKU hybrid inverter and integrated energy management system designed for residential and light commercial solar-plus-storage applications in the US market.

This advanced device serves as the core of Sigenergy’s SigenStor ecosystem, functioning as a hybrid inverter that combines solar PV inversion, battery power conversion (PCS), energy management (EMS), and seamless grid/backup coordination. Its standout feature is field-configurable power output via software, allowing installers to select from six nominal ratings—3.8 kW, 4.8 kW, 5.7 kW, 7.6 kW, 9.6 kW, or 11.5 kW—without stocking multiple hardware models, simplifying inventory and enabling precise system matching to customer needs.

Key Features and Specifications

• PV Input: 4 independent MPPT trackers for optimized solar harvest from complex roofs; supports up to 2:1 DC/AC oversizing ratio (e.g., PV arrays from ~7.68 kW to 23 kW depending on configuration); max DC input voltage 600V.
• Efficiency & Performance: Up to 97.8% maximum efficiency; split-phase 240/120V output for US homes.
• Backup & Resilience: 0ms seamless transfer to backup power during outages; supports off-grid operation and multi-source black start.
• Integration: Built-in EMS for intelligent real-time power flow management between solar, battery, grid, loads, and optional EV charging; compatible with Sigenergy’s modular battery packs (e.g., stackable SigenStor BAT series), LoadHub, and V2X-capable EV modules.
• Durability & Safety: IP66-rated protection; includes DC reverse polarity, arc fault, surge, and anti-islanding safeguards; natural or smart air cooling; wide operating temperature range.
• Connectivity: WLAN, Ethernet, RS485, optional 4G; monitored via mySigen App and Sigen Cloud for AI-optimized control, monitoring, and diagnostics.

This controller emphasizes installer-friendly design (fast commissioning), high flexibility, safety, and performance, making it ideal for scalable home energy independence solutions combining solar, storage, and future EV integration. As part of Sigenergy’s innovative lineup, it helps users maximize self-consumption, reduce bills, and ensure reliable backup power.