Isuna U20K-POH 20kW Off-Grid Split-Phase High-Voltage Inverter
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Description
Description
Power large off-grid homes, farms, workshops, and remote commercial properties with the Isuna U20K-POH 20kW High-Voltage Inverter. Designed for demanding North American 120/240V split-phase systems, it combines 20kW continuous output, up to 30kW PV input, four MPPTs, dual independent high-voltage battery ports, and a dedicated generator input in one rugged platform.
The U20K-POH supports an 80-480V battery range, making it well suited for high-capacity energy storage systems where lower battery-side current is desirable. Its two independent battery ports provide additional flexibility for storage expansion and compatible mixed battery configurations.
Key Features
- 20kW continuous output
- 120/240V split-phase, 50/60Hz
- Up to 30kW solar PV input
- 4 independent MPPT trackers
- 80-480V high-voltage battery range
- 2 independent battery ports
- 50A x 2 battery charge/discharge current
- Dedicated generator input rated up to 48kW / 200A
- Up to 98.0% maximum efficiency
- 97.1% CEC efficiency
- 98.3% PV-to-battery efficiency
- Up to 160% overload for 10 seconds*
- IP66 / NEMA 4X enclosure
- Wi-Fi, LAN, 4G, Bluetooth, CAN and RS485 connectivity
- Parallel-ready for larger multi-inverter systems.
Built for Serious Off-Grid Power
The U20K-POH is ideal for applications with large electrical loads, including HVAC systems, well pumps, irrigation pumps, compressors, workshops, agricultural equipment, and whole-home 120/240V loads.
Its high-voltage battery architecture, four MPPTs, dual battery ports, and dedicated generator input make it especially suitable for large solar-plus-storage systems where reliability, scalability, and flexible energy management are priorities.
Shipping & Returns
Shipping & Returns
- Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
- Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
- If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
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Talk to Our Solar Experts
Have questions about this system? Our solar specialists are here to help you choose the right setup for your needs. Whether you need sizing guidance, installation support, or bulk pricing, we're ready to assist.