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EG4 · Inverter/Charger
SKU: BNDL-E0019-3
EG4 FlexBOSS21 Hybrid Inverter + GridBOSS MID V3.1 Bundle
Power your entire home with confidence using the EG4 FlexBOSS21 + GridBOSS MID V3.1 Bundle—a streamlined, high-performance solution designed for full energy independence without the hassle of main panel upgrades or subpanels.
- Regular price
- $5,473.88
- Sale price
- $5,473.88
- Regular price
-
$7,639.00
Questions before you buy?
Call 877-242-2792 and we’ll work it out with you. Mon–Thu 10am–5:30pm, Fri 10am–1pm EST.
Frequently bought together
Specifications
The details.
Power your entire home with confidence using the EG4 FlexBOSS21 + GridBOSS MID V3.1 Bundle—a streamlined, high-performance solution designed for full energy independence without the hassle of main panel upgrades or subpanels.
This bundle combines the 21kW PV-capable FlexBOSS21 hybrid inverter with the next-gen GridBOSS microgrid controller, delivering reliable whole-home backup, remote monitoring, and simplified installation—all while saving you up to $7,500 in materials and labor.
Key Features & Benefits:
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True Whole-Home Backup – Power your entire home without upgrading your main panel or using a critical load panel.
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Massive 21kW PV Input – Run high-demand appliances, including 5-ton AC units, with support for 600V DC PV input.
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Smart Monitoring & Control – Full remote access, system monitoring, and mobile alerts with the latest EG4 software.
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Expandable System – Parallel up to 10 FlexBOSS21 units for up to 160kW total output.
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Space-Saving & Simplified Setup – GridBOSS replaces breakers, transfer switches, and load centers in one compact unit.
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200A Service Entrance – 22 kAIC main breaker for robust utility, generator, and inverter integration.
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Hybrid-Ready – Operate off-grid, on-grid, or sell excess power back to the grid.
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Future-Proof Design – Supports both copper and properly sized aluminum wire on select breakers.
Why Choose the EG4 FlexBOSS21 + GridBOSS Bundle?
✅ Seamless System Integration – Effortlessly connects solar, battery storage, grid, and generator inputs for a fully optimized Energy Storage System (ESS).
✅ High-Powered Performance – 16kW continuous output (PV input) with 24kW surge capacity to handle heavy loads.
✅ Smart Load Management – Automates power distribution for battery longevity and efficiency.
✅ Real-Time Remote Monitoring – Adjust settings, track performance, and receive alerts via the EG4 app or web platform.
✅ Safety & Compliance – UL-certified components with advanced protections, including rapid shutdown, arc-fault detection, and ground fault monitoring.
💡 Simplify your solar and energy storage setup today with the EG4 FlexBOSS21 & GridBOSS Bundle—power, control, and reliability in one package. 🚀
User Manual / Documents:
- Compatible Battery Types
- Lead-acid/ Lithium
- Max. Charge/Discharge Power
- 12000W
- Nominal Voltage
- 48VDC
- Voltage Range
- 40 – 60 VDC
- Recommended Battery Capacity Per Inverter
- >300Ah
- Max Units in Parallel
- 16
- Product Dimensions (HxWxD)
- 30.43 × 22.28 × 11.22 in. (750 × 520 × 285 mm)
- Unit Weight
- 88 lbs. (52 kg)
- Design Topology
- High Frequency – Transformerless
- Relative Humidity
- 0 – 100%
- Operating Altitude
- <6561 ft (<2000 m)
- Operating Ambient Temperature Range
- -13° – 140°F (-25° – 60°C)
- Storage Ambient Temperature Range
- -13° – 140°F (-25° – 60°C)
- Noise Emission (Typical)
- <50dB @ 3 ft
- Communication Interface
- RS485/Wi-Fi/CAN
- Standard Warranty
- 10-year standard warranty*
- Outdoor Rating
- NEMA 4X
- Communication Interface
- RS485/Wi-Fi/CAN
- Internal Bus Rating
- 350A
- Internal Fuse Rating
- 315A
- Operating Altitude
- <6561 ft (<2000 m)
- Relative Humidity
- 0 – 100%
- Outdoor Rating
- NEMA 3R
- Operating Ambient Temperature Range
- -40°F – 140°F (-40°C – 60°C)
- Product Dimensions (HxWxD)
- 31.5×19.7×7 in (800×500×178 mm)
- Unit Weight
- 55 lbs. (25 kg)
- Standard Warranty
- 10-year standard warranty