The FY-20KHB-T3/LV is a 20kW three-phase hybrid inverter designed for the European market, supporting coordinated management of PV, battery, grid, and generator. The product is certified to IEC/EN 62109, EN 50549, CEI 0-21, and other European standards, with both on-grid and off-grid operation capabilities. It is suitable for residential, commercial & industrial rooftop, and small off-grid/microgrid applications.

AFDD Arc Fault Protection Circuit Breaker

Item	Specification
Max. Efficiency	97.60%
European Efficiency	97.00%

PV Input

Item	Specification
Max. PV Access Power	40,000W
Max. PV Usable Power	30,000W
Max. PV Input Voltage	1,000V
Start-up Voltage	120V
MPPT Operating Voltage Range	160V–980V
Max. Input Current per MPPT	20A / 20A / 20A
Max. Short Circuit Current per MPPT	30A / 30A / 30A
No. of MPPT Trackers	3
No. of Strings per MPPT Tracker	1 / 1 / 1

Battery Input/Output

Item	Specification
Battery Type	Lithium-ion / Lead-acid
No. of Battery Input	2
Nominal Battery Voltage	48V
Battery Voltage Range	40V–60V
Max. Charge/Discharge Current	380A / 380A
Max. Charge/Discharge Power	20,000W / 20,000W

Grid Input/Output

Item	Specification
Nominal AC Output Power	20,000W
Max. AC Output Apparent Power	22,000VA
Nominal AC Output Current	3×30.3A / 3×29A / 3×27.8A
Max. AC Output Current	3×33.3A
Max. Grid Passthrough Current	45A
Nominal Voltage	220V/380V; 230V/400V; 240V/415V (3W+N+PE)
Nominal Frequency	50Hz / 60Hz
Power Factor	>0.99 @rated power (Adjustable 0.8 LD–0.8 LG)
THDI	<3% @rated power

Backup Output

Item	Specification
Nominal AC Output Power	20,000W
Max. AC Output Apparent Power	22,000VA
Nominal AC Output Current	3×30.3A / 3×29A / 3×27.8A
Max. AC Output Current	3×33.3A
Max. Output Apparent Power	150% @ 10s
Nominal Voltage	220V/380V; 230V/400V; 240V/415V (3W+N+PE)
Nominal Frequency	50Hz / 60Hz
Transfer Time	<10ms (Typical)
THDV	<3% @100% R Load

Generator Input

Item	Specification
Max. Input Power	30,000W

Protection

Item	Specification
Protection Category	Class I
PV Switch	Yes
Anti-islanding Protection	Yes
Overcurrent Protection	Yes
PV Reverse Polarity Protection	Yes
Overvoltage Protection	Yes
Surge Protection	DC Type II, AC Type II
Insulation Resistance Detection	Yes
Residual Current Protection	Yes
Built-in Battery Breaker	400A, Optional
AFCI 2.0 / RSD	Optional

General

Item	Specification
Max. Operation Altitude	4,000m (>2,000m derating)
Ingress Protection Degree	IP65
Operating Temperature Range	-25°C–60°C (>45°C derating)
Relative Humidity	0–100%
Cooling Method	Smart Cooling
Mounting	Wall bracket
Dimensions (W×H×D)	460mm × 742mm × 266mm
Weight	46.5kg

HMI & Communication

Item	Specification
Display	LED + LCD
Communication Interfaces	RS485/CAN (for BMS), RS485 (for Meter), DRMs, CAN (for parallel), 2×DO, 2×DI, USB (for Wi-Fi/LAN, Optional)

Certifications

Item	Specification
Safety	IEC/EN 62109-1/-2
EMC	IEC/EN 61000-6-1/-2/-3/-4, IEC/EN 62920
Grid	IEC 61727/62116, IEC 60068, IEC 61683, EN50549-1/10, CEI 0-21
Warranty	5 Years / 10 Years (optional)

Core Technical Advantages

Powerful Three-Phase Unbalanced Load and Output Capability

We use the world's most advanced nano-materials and ultra-high-standard metal materials to make our products,which are properly used to ensure the high quality of our products,as well as to improve the resistance,durability and waterproofness of our products.

Excellent Battery Compatibility and Flexibility

Mainstream European-standard 20kW models generally support 48V low-voltage battery systems (such as the Deye SUN-20K series), eliminating the need for complex BMS boxes and reducing system costs and installation barriers. They also support lead-acid batteries, providing users with more options.

High Power and High Charge/Discharge Current

With a rated output of 20kW, the off-grid peak power can reach 1.5 to 2 times the rated value (lasting 10 seconds), enough to handle impact loads such as motor startup. Its battery charge/discharge current is extremely high-for example, the Deye model can reach 350A-enabling rapid throughput of large-capacity battery energy.

Seamless On/Off-Grid Switching and Parallel Expansion

Supports UPS-level switching (less than 10ms for some models), ensuring critical equipment stays powered. Supports parallel connection of up to 10 units, allowing flexible system expansion to 200kW to adapt to future demand growth.

High Efficiency and High Protection

Maximum efficiency is generally above 97.5%, with European efficiency around 97%. Protection rating typically reaches IP65, supporting outdoor installation and adapting to harsh environments.

Company Introduction

FY Solar

FY Solar | 10+ Years Solar & Energy Storage Specialist | Factory Direct

With over 10 years of deep expertise in the solar and energy storage industry, FY Solar is a vertically integrated manufacturer and distributor serving global distributors, installers, and EPC contractors.

We manufacture our own branded lithium batteries and solar panels - giving you factory-direct pricing with zero middleman markup. Our product portfolio spans the full solar ecosystem: solar panels, inverters, lithium batteries, complete solar systems, and commercial & industrial (C&I) energy storage solutions.