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EG4 FlexBOSS21 All-in-One Hybrid Inverter | 21kW PV Input | 48V Split Phase
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by EG4

EG4 FlexBOSS21 All-in-One Hybrid Inverter | 21kW PV Input | 48V Split Phase

$4,199.00 - $4,199.00
$4,199.00
$4,199.00 - $4,199.00
$4,199.00
+ No Sales Tax

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Questions? Ask an Expert
Buy with confidence. Contact our experts today.

EG4 FlexBOSS21 All-in-One Hybrid Solar Inverter

The EG4 FlexBOSS21 hybrid solar inverter is a flexible 48V split-phase inverter/charger that delivers the reliable power of the 18kPV with added adaptability. It is powerful enough to start a 5-ton AC unit and supports 21kW of PV input. With the ability to parallel up to 10 units, the FlexBOSS21 achieves an impressive total continuous output of 160kW using PV input. Equipped with three MPPTs, it provides optimal solar management, while the enhanced EG4 gridboss monitoring software offers complete remote control, including mobile alerts and remote settings adjustments. Its integration with GridBOSS ensures comprehensive management of the entire Energy Storage System (ESS).

EG4 FlexBOSS21 Key Features & Benefits

  • 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.

EG4 FlexBOSS21 Off-Grid Inverter 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 the EG4 FlexBOSS21 Hybrid Solar Inverter?

The FlexBOSS21 blends efficiency, durability, and innovation, making it an excellent option for those in need of reliable energy management solutions.

With advanced monitoring and safety features, it delivers dependable power and assurance for both residential and commercial installations. Go off-grid, stay connected, or sell back to the grid. The choice is yours.

What is included with the EG4 FlexBOSS21 Inverter?

  1. EG4 FlexBOSS 21 All-in-One Hybrid Solar Power Inverter
  2. 70A Breaker:
    Compatible only with the EG4 18kPV Hybrid Inverter.
  3. Smart Port Breakers:
    Rated at 30A, 40A, 60A, and 80A.

Please Note:

  • You must purchase a 90A Breaker (due to ship separately in early December) for use with the EG4 FlexBoss21 Hybrid Inverter.
  • You must purchase a 50A Breaker separately for use with the EG4 12kPV Hybrid Inverter.
  • A 125A Breaker (sold separately) can be used with either the Smart Port or Gen Port.

Documents & Downloads

Order your EG4 FlexBOSS21 Hybrid Solar Inverter Today!

Still Have Questions? Speak with an Expert: (848) 600-6420

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    it was easy to understand him when he was talking,he was very good at getting the item ship,quick service,its to bad you don't make a wooden crate to ship them in because they wouldn't show up with all kinds of damage and have to go back, even though the freight company is responsible for the damage it just sets the customer back further on his project that's the only thing that is bad about your company it was easy to understand him when he was talking,he was very good at getting the item ship,quick service,its to... it was easy to understand him when he was talking,he was very good at getting the item ship,quick service,its to bad you don't make a wooden crate to ship them in because they wouldn't show up with all kinds of damage and have to go back, even though the freight company is responsible for the damage it just sets the customer back further on his project that's the only thing that is bad about your company

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    had a bunch of questions and Christian answered them. Now hopefully after using three different inverters this one will have the correct software and will solve the problem.
    Thanks for the help!

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