EG4 FlexBOSS21 All-in-One Hybrid Inverter

The EG4 FlexBOSS21 is a high-capacity, split-phase hybrid inverter for residential and small commercial solar systems. Delivering up to 16kW AC output and supporting 21kW PV input, it ensures reliable power day or night. Compact, scalable, and EMP-hardened, the FlexBOSS21 paired with EG4 GridBOSS reduces installation costs while providing maximum efficiency and flexibility for your solar setup.

Key Features:

• Industry-Leading Power: Supports up to 21kW PV input and 16kW AC output, perfect for high-demand solar systems.
• Scalable & Flexible: Easily expands from small to large solar arrays, supporting 50–160A service.
• Cost-Effective Solution: Reduces installation time and components when paired with GridBOSS.
• Compact & Space-Saving: Delivers maximum power in a 30.4×22.3×11.2 in. footprint.
• Advanced MPPT Technology: 3 MPPTs (26A/26A/15A) support up to 5 strings in multiple orientations.
• AC Coupling & Smart Loads: Seamless integration with GridBOSS for smart energy management and generator support.
• EMP-Hardened Reliability: Maintains operation during electromagnetic pulse events for added protection.
• High-Capacity AC Output: Powers heavy loads, including 5-ton AC units, with continuous 12–16kW AC.
• Durable & Long-Lasting: 121 lbs. of robust construction backed by a 10-year warranty.

Downloads:

• EG4 FlexBOSS21 Manual
• EG4 FlexBOSS21 Spec Sheet
• EG4 FlexBOSS21 Certification of Compliance