EG4 FlexBOSS21 (V1.1) Hybrid Inverter | 48V Split Phase | 21kW PV Input

Versatile and Powerful Hybrid Inverter

The EG4 FlexBOSS21 (V1.1) is a versatile 48V split-phase, hybrid inverter/charger that offers the same dependable power as the 18kPV with enhanced flexibility. Powerful enough to start a 5-ton AC unit, the FlexBOSS21 supports 21kW of PV input. Capable of paralleling up to 16 units together, the FlexBOSS21 has an impressive total output of 256kW continuous when using PV input. Three MPPTs give users optimal control over their solar needs, while the updated EG4 monitoring software allows for convenient total remote management, complete with mobile notifications and remote setting. Seamless interaction with GridBOSS gives users control over their entire Energy Storage System (ESS).

Key Features:

• Flexible Power Options: Operate off-grid, with grid support, or sell excess power back to the grid.
• High PV Input Voltage: Supports up to 600V DC, allowing reduced cable sizes.
• Smart Connectivity: Remote access with Wi-Fi and closed-loop communication with compatible batteries.
• Safety-First Design: Includes rapid shutdown, ground fault monitoring, arc-fault protection, and robust safety certifications.
• UL 1741 Certificate of Compliance

Specifications:

• Input Voltage Range: 120/240VAC; 120/208VAC (Split-phase)
• Output Power: 16kW continuous when using PV input, with a peak surge capacity of 24kW
• Dimensions: 29.5 x 20.5 x 11.2 inches
• Weight: 88 lbs
• Warranty: 10-year standard warranty, covering all major components

Why Choose EG4 FlexBOSS21? The FlexBOSS21 combines efficiency, durability, and innovation, making it a top choice for those seeking robust energy solutions. Its advanced monitoring and safety features provide reliable power and peace of mind for residential or commercial installations.

Elevate Your Energy Solutions Today: Explore the potential of the EG4 FlexBOSS21 Hybrid Inverter and enhance your energy management system.

Important EG4 GridBoss Breaker Information

Each EG4 GridBoss (V2.1) unit includes:

• 90A Breaker:
  Compatible only with the EG4 FlexBOSS21

• Smart Port Breakers:
  Rated at 30A, 40A, 60A, and 80A.

Please Note:

• You must purchase a 70A Breaker for use with the EG4 18kPV Hybrid Inverter; you can easily add this to your cart directly from this link
• You must purchase a 50A Breaker separately for use with the EG4 12kPV Hybrid Inverter from this link
• A 125A Breaker (sold separately - Link ) can be used with either the Smart Port or Gen Port.

Spec Sheet

User Manual

Certification