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- Regular price
- $3,599.99
Estimated shipping time
Estimated shipping time
You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.
What is your Return Policy?
What is your Return Policy?
At Northgrid Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:
1. Return Window
You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.
2. Who Pays for Return Shipping?
- If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
- If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.
3. Damaged or Defective Items
Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.
4. Changed Your Mind?
If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).
5. Refund Processing
Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.
If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@northgridsupply.com and we’ll look into it immediately.
6. Restocking Fees
In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.
EG4 FlexBOSS21 Hybrid Solar Inverter | 21kW PV / 16kW AC | Split-Phase | 4-MPPT | Scalable | Remote Wi-Fi Monitoring
The EG4 FlexBOSS21 Hybrid Solar Inverter is a high-capacity hybrid inverter designed for advanced residential and commercial energy systems. With up to 21,000W PV input and 16,000W split-phase 120/240V output, it delivers powerful and flexible performance for both on-grid and off-grid applications. Built to manage solar, battery, grid, and generator power, it also supports remote monitoring, mobile alerts, and scalable system expansion for modern energy independence. For further technical details, refer to the file named "EG4 and BigBattery Solar Energy Systems and Components_18".
Product Highlights
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High Solar Capacity: 21,000W PV input capacity for large solar energy systems.
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Powerful Output: 16,000W split-phase output for residential and commercial power applications.
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Standard Voltage: 120/240V split-phase output for standard and heavy-duty loads.
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Advanced Optimization: 3 MPPT inputs supporting up to 5 strings for optimized solar production.
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Grid Integration: 90A grid feed-through for high-demand loads and smooth grid integration.
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Battery Versatility: 48V battery system compatibility for grid-tied, hybrid, and off-grid installations.
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Upgrade Friendly: AC coupling compatibility for system upgrades and retrofits.
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System Orchestration: EG4 GridBOSS MID integration for advanced system control.
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Digital Control: Remote Wi-Fi monitoring and mobile alerts for real-time system visibility.
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Durability: IP65 / NEMA 4X protection rating for durable installation environments.
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Long-Term Reliability: 10-year EG4 manufacturer warranty with lifetime USA-based tech support.
Key Features
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High-Capacity Hybrid Performance: Supports up to 21,000W PV input and 16,000W split-phase output, serving as a powerful option for advanced systems.
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On-Grid and Off-Grid Flexibility: Designed for grid-tied, hybrid, and off-grid installations to support varied solar and backup setups.
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Split-Phase Power Output: Provides 120/240V split-phase output to power standard household loads and heavier appliances.
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Advanced Solar Optimization: Utilizes 3 MPPT inputs supporting up to 5 strings to maximize production across multiple solar arrays.
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GridBOSS MID Integration: Integrates with the EG4 GridBOSS MID gateway for smart load management, generator support, and simplified installation.
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Smart Energy Management: Supports peak shaving and intelligent power distribution to help improve energy efficiency and system control.
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Built-In Safety Protections: Includes rapid shutdown, ground fault protection, and arc fault protection for safer, code-compliant operation.
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Remote Monitoring & Alerts: Features Wi-Fi connectivity and mobile alerts for real-time system tracking from any location.
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Scalable System Design: Supports up to 16 parallel connections, making it suitable for large-scale energy configurations.
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Outdoor-Ready Protection: Features an IP65 / NEMA 4X protection rating to safeguard the unit in demanding installation environments.
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Maintenance-Free Operation: Engineered for dependable performance with no routine servicing required.
Resources
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