*All Canadian stock we carry is UL1741 certified to CSA standards! See listing below or HERE for certification details. 

EG4 FlexBOSS21 Hybrid Inverter | 48V Split Phase | 21kW PV Input

The EG4 FlexBOSS21 is a split phase, all-in-one, hybrid inverter designed for the residential and small commercial markets. With a 21kW usable PV (DC) input, the FlexBOSS21 provides high power output, generating 12kW of AC power during non-sunlight conditions and a full 16kW AC with solar PV gain. It is a powerful and versatile inverter which can feed-through 90 Amps of utility power from the grid at 120/240 VAC. 

The FlexBOSS21 is an enhanced cousin to EG4’s flagship 18kPV inverter that has been designed to optimally work with EG4’s GridBOSS MID (power gateway). The combination of FlexBOSS21 and GridBOSS significantly reduces installation expenses by replacing unnecessary components and reducing installation time. This makes the FlexBOSS21-GridBOSS combination an unbeatable choice for customers looking to build powerful, cost-effective and scalable solar systems.

Versatile and Powerful Hybrid Inverter

The EG4 FlexBOSS21 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 10 units together, the FlexBOSS21 has an impressive total output of 160kW 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.

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 Breaker Information for Pairing with the EG4 GridBoss 

Each EG4 GridBoss unit includes:

• 70A Breaker:
  Compatible only with the EG4 18kPV Hybrid Inverter.

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

Please Note:

• You must purchase a 90A Breaker 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.

FlexBOSS-21- User Manual

Spec Sheet

Certificate of Compliance

RETURN POLICY

We gladly accept most unused and unopened merchandise for a full refund within 30 days of purchase (see exceptions below). Simply return the complete product to us in its clean original packaging, accompanied with the original proof of purchase or receipt. Note that the buyer is responsible for return shipping costs.

Unused items with open boxes within 30 days of purchase will be subject to a 10% restocking fee. These items must be returned in the original packaging with all accessories.

Please note:

Special-order merchandise is not returnable. Non-refundable items also include: Used toilets, cleaning or clothing products, hammocks, Coghlans, Aquatabs, and other items as specified Batteries of any kind are not returnable. This includes but is not limited to all flooded acid, sealed/AGM, or LiFePO4 batteries. There are no exceptions* 

*It is not possible to measure or guarantee with certainty that a battery has been unused once it has left our warehouse. Accepting a battery return and then reselling to other customers with the presumption of it being unused is not a practice we follow.

WARRANTY

All merchandise is subject to the manufactures warranty and will be repaired or replaced as per the manufactures directions. The Cabin Depot™ is a retail business and we do not employ installers. However, we are very happy to assist customers having issues with any products purchased by reaching out to the manufacturer on the customers behalf if needed to help expedite the troubleshooting or warranty process. 

DISCLAIMER

The Cabin Depot Ltd. is a retail business exclusively and accepts no liability for DIY installations or equipment selection. It is the customers responsibility to read the manufacturers manuals and installation instructions carefully, ensure all local, provincial, or national building codes are met, and contact a qualified installer or tradesperson if required.

The Cabin Depot™ is pleased to offer free shipping on select items, and adheres to the following policy:

-Free shipping applies to standard residential or business addresses only.

-Remote locations are excluded, see below for examples.

-Smaller parcel orders will ship by Canada Post, FedEx, UPS, Canpar, or similar.

-Larger palletized orders such as wood stoves, appliances, batteries, and solar panels will ship by reputable 3rd party trucking companies with residential liftgate and appointment services included.

-Tracking information will be uploaded to our website as soon as it becomes available, at which time customers will receive a notification and can track their order progress. Note that some gmail or hotmail users may have our confirmations misidentified as spam, so we suggest checking your junk folder before contacting us.

-The Cabin Depot™ uses 3rd party carriers and trucking companies, therefore cannot guarantee exact delivery dates under any circumstances.

-Customers with specific delivery date requirements should contact our shipping department who can review available options.

-Our shipments leave our dock in perfect condition. The carrier or trucking company is fully responsible to deliver orders damage-free and are fully responsible for any delayed or lost shipments.

-Due to increasing fuel and operating costs, trucking companies are now charging additional fees to deliver to some locations in Canada which unfortunately may not be covered under our free shipping policy. The Cabin Depot™ reserves the right to notify the customer of any additional shipping or handling charges if necessary to deliver. If notified of any additional charges, the customer has the right to modify or cancel the order for a full refund.


DELIVERY TO REMOTE LOCATIONS

Our shipping team have managed deliveries to some of the most remote locations in North America. If you live in a remote location, we encourage you to contact us before placing your order so we can review delivery options with you. Regions considered remote include but are not limited to the following:

-Yukon
-Northwest Territories
-Nunavut
-British Columbia

For any questions regarding this shipping policy or quotes please contact us:

Email: quotes@thecabindepot.com

Call: 1-844-603-4743 and select option #2

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