Isuna U20K-POH 20kW Off-Grid Split-Phase High-Voltage Inverter

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: 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.