Solax ULTRA 20000W X3-ULT-20K Three-phase Hybrid Solar Inverter
Modelo: X3-ULT-20K- Sku: SOLXINV058
- Vendor: Solax
Specifications
Product Description
The Solax ULTRA 20000W X3-ULT-20K Three-phase Hybrid Solar Inverter increases storage capacity and energy control in C&I applications. Its 3 high-current MPPT allow for designing strings with different orientations while maintaining precise tracking, while the backup electronics with switching <10 ms ensure continuity for critical loads. With HV battery 120–800 V, 60 A charge/discharge, and 200% PV oversizing, this unit maximizes self-consumption and enables advanced tariff-based strategies.
Main Features
- Nominal AC power 20 kW three-phase; apparent output up to 22 kVA (110%).
- 3 MPPT (2+2+2 strings) with 36 A per MPPT and Isc 45 A; MPPT range 160–950 V; max Vdc 1000 V.
- HV battery 120–800 V with 60 A charge/discharge for fast response and intensive cycles.
- EPS with transfer <10 ms; 200% peak for 10 s for demanding startups.
- PV oversizing 200% and AC output 110% to maximize peak hours.
- Max efficiency 98.0%; European 97.7%; night consumption <5 W.
Advantages or Benefits
- More kWh and better hourly coverage with 3 MPPT and 200% DC oversizing.
- Savings and control: zero export, time-of-use (ToU) programming, load management, and VPP-ready.
- Safe operation: IP66, SPD Type II DC/AC, and optional AFCI to minimize risks.
- Business scalability: up to 10 inverters in parallel on/off-grid and microgrid function with generator.
- Efficient O&M: shadow tracking, diagnostics, and remote monitoring in Solax Cloud.
Purpose or Applications
Recommended for SMEs, retail, coworking spaces, restaurants, farms, and high-consumption three-phase homes that require 20 kW with HV battery, instant backup, and export control.
Technical Specifications
| Nominal AC power | 20 kW (22 kVA max.) |
| Voltage / Frequency | 3/N/PE 220/380 V or 230/400 V; 50/60 Hz |
| MPPT / Strings | 3 / (2+2+2) |
| MPPT range | 160–950 V; max Vdc 1000 V; startup 200 V |
| Current per MPPT | 36 A (Isc 45 A) |
| PV oversizing | 200% |
| Battery | HV 120–800 V; 60 A charge/discharge |
| EPS | <10 ms; 200% peak 10 s |
| Efficiency | 98.0% max.; 97.7% EU |
| Protection | IP66; SPD Type II DC/AC; optional AFCI |
| Communication | RS485 (meter), DI/DO, Modbus; VPP-ready (OpenADR/2030.5) |
| Dimensions / Weight | 696 × 526 × 240 mm; 47 kg |
| Parallel | Up to 10 units on-grid and off-grid |
| Environment | –35 to 60 °C; altitude ≤3000 m |
Compatibilities
Compatible with Solax HV batteries (modules TP-HS50E + TBMS-MCS0800E), meter/CT for zero export, Pocket communication modules (WiFi/LAN/4G), and Solax Cloud monitoring. Integration with smart load, EV charger, and microgrid with generator.
The Solax ULTRA X3-ULT-20K offers power, flexibility, and safety for three-phase projects seeking maximum savings and operational continuity.
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Solax ULTRA 20000W X3-ULT-20K Three-phase Hybrid Solar Inverter





