Solax X3-ULT-20K(AFCI) Hybrid Inverter (20 kVA, 3-phase)

The Solax X3-ULT-20K(AFCI) 3-phase hybrid inverter features a rated power of 20000 VA and is equipped with two independent Maximum Power Point Tracking (MPPT) inputs. The device offers a maximum efficiency of 98.0% and is compatible with lithium-ion energy storage systems.

The Solax X3-ULT-20K(AFCI) hybrid inverter is designed for 3-phase photovoltaic installations with energy storage systems. Its transformerless design allows it to achieve a maximum efficiency of 98.0%, while the built-in Smart cooling system ensures optimal component temperatures. The inverter supports battery charge and discharge currents up to 60 A and provides an EPS (Emergency Power Supply) switchover time of less than 10 milliseconds. The device communicates via Modbus protocols and offers five digital inputs and two digital outputs.

Key features

• Rated AC power is 20000 VA, and the maximum apparent power is 22000 VA.
• Built-in 2 independent MPPTs supporting a short-circuit current of up to 45 A per input.
• Factory-equipped with a communication module, a DC switch, and CT current transformers.
• Integrated Arc Fault Circuit Interrupter (AFCI) and Type II surge protection devices on both AC and DC sides.
• Compatible with high-voltage lithium-ion batteries ranging from 180 V to 800 V.

Technical data

Maximum DC input power	40000 W
Rated AC power	20000 VA
Number of MPPTs / strings per MPP	2 (2/2)
Maximum DC voltage	1000 V
MPPT voltage range	160 - 950 V
Maximum AC current	31.9 A
Protection class	IP66
Dimensions (WxHxD)	696 x 526 x 240 mm
Weight	47 kg