Inverters

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version

$ 3,629.9USD · price may vary

Model: 1526018
Specifications: 0

Overview

Powerful, Flexible, and Built for Energy Independence

The EG4 FlexBOSS21 (V1.1) is a versatile 48V split-phase hybrid inverter/charger, delivering powerful performance and seamless energy management. Designed to handle heavy loads—including a 5-ton AC unit—this advanced inverter supports 21kW of PV input and can be paralleled up to 16 units, offering a staggering 256kW total continuous output.

Equipped with three MPPTs for maximum solar efficiency, the FlexBOSS21 is fully compatible with the latest EG4 monitoring software, allowing for remote management, mobile notifications, and real-time adjustments. Seamlessly integrates with EG4 GridBOSS for complete control over your Energy Storage System (ESS).

Key Features & Benefits

✅ Flexible Power Management – Operate off-grid, with grid support, or sell excess power back to the grid.✅ High PV Input Voltage (600V DC) – Reduces cabling costs and increases system efficiency.✅ Scalable & Powerful – Parallel up to 16 units for large-scale energy solutions.✅ Smart Connectivity – Remote access via Wi-Fi and closed-loop communication with compatible batteries.✅ Advanced Safety Features – Includes rapid shutdown, ground fault monitoring, arc-fault protection, and compliance with top industry standards.

🔹 Certified for Safety & Compliance:

UL 1741 Certified

CEC Solar Equipment Listed

Technical Specifications

📏 Input Voltage Range: 120/240VAC (Split-phase) | 120/208VAC⚡ Output Power: 16kW continuous (PV input), with 24kW peak surge capacity📐 Dimensions: 29.5” x 20.5” x 11.2”⚖️ Weight: 88 lbs📜 Warranty: 10-year standard warranty covering all major components

Why Choose the EG4 FlexBOSS21?

The FlexBOSS21 offers next-level efficiency, durability, and innovation, making it an ideal solution for both residential and commercial applications. With advanced remote monitoring, seamless grid integration, and high-output capabilities, this inverter ensures reliable power and complete energy control.

💡 Upgrade Your Solar System Today!Take control of your energy with the EG4 FlexBOSS21 Hybrid Inverter and maximize your solar potential.

🔋 Experience the power of the EG4 FlexBOSS21—built for performance, reliability, and total energy independence.

Reading the specifications

Detailed specifications for EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version have not been published yet. EG4 lists this inverter in the Inverters, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For an inverter, the figures that matter most are the MPPT voltage window, which decides how many panels go in a string, peak and weighted (European/CEC) efficiency, typically 96–98.5%, topology — on-grid, off-grid, hybrid or micro and continuous AC output in kW, which caps the load you can run at once. It is the component that decides what a solar system can do: how much power you can draw at once, whether you can export to the grid, whether the system keeps running in a blackout, and how well the panels and battery are managed day to day.

What to check before ordering

The checks below apply to any inverter. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Confirm the inverter is approved by your local utility or distribution network before you buy if you intend to export power — grid connection depends on certified anti-islanding and local grid-code compliance, not on the inverter's specifications alone.
Match the battery communication protocol (CAN bus or RS485) between inverter and battery. Compatible voltages are not enough; without a supported protocol the battery management system and inverter cannot agree on charge limits.
Look at the warranty term and what it covers. Five years is the common baseline, ten is offered by stronger brands, and extensions are often cheaper bought with the unit than later.
Size the inverter against the loads you need to run simultaneously, not against the total wattage of every appliance in the building — a 5 kW inverter comfortably runs a fridge, fans, lights and a couple of ACs, but not all of them plus a water pump starting at the same time.

What people get wrong

Ignoring the ambient temperature rating. Inverters derate in heat, so a unit rated 5 kW at 25 °C may deliver noticeably less on a hot roof-adjacent wall at 45 °C.
Assuming any grid-tie inverter keeps the lights on during an outage. Standard on-grid units shut down for safety unless they have a dedicated backup or islanding output.
Overlooking the IP rating. An outdoor installation needs at least IP65; indoor-rated units mounted outside fail early.

Price and availability in United Arab Emirates

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version is listed at $ 3,630 (USD) for United Arab Emirates. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United Arab Emirates: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports EG4 locally before ordering.

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version — frequently asked questions

How much does EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version cost?

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version is listed at $ 3,630 (USD) for United Arab Emirates. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

Who makes EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version?

EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version is a EG4 product, listed under inverters with model reference 1526018. The EG4 brand page lists the rest of its range so you can compare across the catalogue.

Is EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version right for my system?

That depends on what it has to connect to. For an inverter, check surge or peak rating, which covers the brief inrush of motors and compressors, maximum PV input and the number of MPPT trackers, which set how many panel strings you can connect and the MPPT voltage window, which decides how many panels go in a string against the rest of your equipment before price enters the decision. Look at the warranty term and what it covers. Five years is the common baseline, ten is offered by stronger brands, and extensions are often cheaper bought with the unit than later.

Where can I buy EG4 FlexBOSS 16kw AC Hybrid Inverter | 48V Split Phase | 21kW PV Input | [V1.1] Newest Version in United Arab Emirates?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United Arab Emirates — buying in-channel is what keeps the manufacturer's warranty valid.

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