Fortress Power High Voltage Hybrid Inverter 11.4 kW 120/240V - Avalon Hybrid Inverter 11.4 KW - AVI-11
Fortress Power High Voltage Hybrid Inverter 11.4 kW 120/240V - Avalon Hybrid Inverter 11.4 KW - AVI-11
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- SKU
- PES-SPS-SIV-0663
- MPN
- AVI-11
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Fortress Power AVI-11 inverter — Avalon 11.4 kW hybrid (120/240 V, 4 MPPT)
Fortress Power AVI-11 inverter is a high-voltage hybrid unit designed for whole-home backup: 120/240 V split-phase output, 4 MPPT (PV up to 18.24 kW), and flexible retrofits with AC/DC coupling. Type 4X/IP66 fan-less enclosure, −25°C to 60°C operating range, and integrated SunSpec rapid-shutdown transmitter are provided. [datasheet]
Key features
Fortress Power AVI-11 inverter enables quick, code-friendly installs with integrated SunSpec RSD transmitter (APSmart/Tigo receivers), high-voltage battery bus (120–315 V), and Wi-Fi/RS485/CAN communications. [datasheet]
- 11.4 kW rated AC output (split-phase 120/240 V); 18.2 kVA off-grid surge (10 s)
- 4 MPPT, 1 string per MPPT; 600 V max PV, MPPT window 80–520 V; 16 A/string (Isc 25.6 A)
- Battery bus 120–315 V; 50 A max charge/discharge; CAN/RS485 comms
- Efficiencies: PV max 97.6%, CEC 97.2%, PV→Batt 98.5%, Batt→AC 97.0%
- Compliance: UL1741/SA/SB, IEEE 1547/1547.1-2020, UL9540; generator support
Specifications
| AC output | |
|---|---|
| Rated power | 11.4 kW @ 120/240 V split-phase (47.5 A rated current) |
| Off-grid surge | 18.2 kVA (10 s) |
| Frequency | 60 Hz (55–65 Hz range) |
| PV input (DC) | |
| MPPT / strings | 4 MPPT / 1 string per MPPT |
| Voltage | 600 V max; MPPT 80–520 V (380 V rated; 80 V start) |
| Current limits | 16 A per string (Isc 25.6 A) |
| Battery interface | |
| Voltage range | 120–315 V (HV LFP stack) |
| Charge / discharge | Max 50 A |
| Comms | CAN / RS485 |
| Protection & RSD | |
| Integrated RSD | SunSpec-certified transmitter; works with APSmart or Tigo receivers |
| Other | GFDI, residual current detection, AFCI, DC reverse-polarity |
| Efficiency | |
| PV max / CEC | 97.6% / 97.2% |
| PV→Batt / Batt→AC | 98.5% / 97.0% |
| Mechanical & ratings | |
| Enclosure | Type 4X (IP66), fan-less, <30 dB(A); natural convection |
| Dimensions (W × H × D) | 21.87″ × 34.88″ × 8.62″ |
| Weight | ≈ 89.59 lb |
| Certifications | UL1741 / SA / SB, UL9540, IEEE 1547-2018 & 1547.1-2020, NEC 690.12-2020, FCC Part 15 Class B |
| Warranty | 10 years (inverter) |
For installers, the Fortress Power AVI-11 inverter is a rugged, high-efficiency platform that delivers plug-and-play whole-home backup with Avalon HV battery stacks & Smart Energy Panel.
| SKU | PES-SPS-SIV-0663 |
|---|---|
| MPN | AVI-11 |
| Manufacturer | Fortress Power |
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