IP66 Low Voltage Three Phase 18kw Hybrid Solar Inverter 220V 230V 240V 18000W 18KVA Solar Hybrid Inverter Support Parallel MPPT

Model	WTHD-HI-3P-15KL	WTHD-HI-3P-18KL	WTHD-HI-3P-20KL	WTHD-HI-3P-24KL
INVERTER INPUT / OUTPUT GRID
Rated Power kW	15/15	18/18	20/20	24/24
Rated Voltage	380 / 400 V a. c., 3W+N+PE
Rated Frequency Hz	50 / 60
Power Factor Range	0.8 leading ~ 0.8 lagging
Switch Time Ms	< 20
Current Maximum Continuous A a. c	43/22	52/26	58/29	60/35
Max Output Overcurrent Protection	400 V a. c. / 100 A a. c
BATTERY
Battery Type	Lithium / Lead-acid
Battery Voltage Range (V d. c	40 ~ 60
Rated Battery Voltage (V d. c	51.2
Max Charge Current (A d. c	375	430	450	500
Max Discharge Current (A d. c	375	430	450	500
PV INPUT
No. of MPPT Tracker / Strings	2 / 2 +2
Max. PV Array Power kW	30	36	40	48
Max DC Voltage V d. c	1000
MPPT Voltage Range V d. c	150 ~ 950 V d. c
Start-up Voltage V d. c	180
Max. Input Current A d. c	4*20
Isc PV Absolute Maximum A d. c	4*30
AC OUTPUT EPS
EPS Rated Output Voltage	380 / 400 V a. c, 3W+N+PE
EPS Rated Output Frequency	50 / 60Hz
EPS Rated Output Active Power	15KW	18KW	20KW	24KW
EPS Rated Output Apparent Power	15kVA	18kVA	20kVA	24kVA
EPS Rated Output Current	22A	26A	29A	35A
Overload Capacity (Off Grid)	200% 10s
EFFICIENCY
MPPT Efficiency	99.90%
Euro-efficiency	97.20%
Max. Efficiency	98.00%
PROTECTION & FEATURE
Insulation Monitoring	Yes
Residual Current Monitoring	Yes
Parallel Function	Yes
Protection Degree	IP66
Certifications	EN I EC 62477-1，EN I EC 62109-1/2，EN I EC 61000-6-2，EN I EC 61000-6-4，EN50549-1/10
Other Protection	Output over voltage, Output over current, Short circuit, Surge, Temperature, Anti-ls land mg
GENERAL PARAMETER
Storage Temperature	-25°C ~ +60°C
Operating Temperature	-25℃ ~ +60℃ Line ly de rating to 60% when exceed +45℃ ~ +60℃
Humidity	0-95% Non-condensing
Altitude M	4000  >2000 De rating
Noise DB	<45<>
Machine DimensionW*H*D	448*660*265mm
Machine Weight / N. W	40KG
DISPLAY & COMMUNICATION
Display	LCD + APP
Interface	RS485 / Wi Fi / CAN / DRM Optional: Bluetooth / LAN / Meter

Shenzhen Weitu Hongda Industrial Co., Ltd., established in 2015, is a certified National High-Tech and "Specialized & Innovative" enterprise. We provide advanced, customized power solutions backed by solid R&D and a registered capital of 51 million RMB We specialize in durable and adaptable energy systems to meet your precise needs ●Custom Lithium Battery: Built for performance, safety, and long life ●Efficient Solar Inverters: Reliable design for optimal energy conversion

●Full Power Product Range: Including UPS, EPS, and voltage stabilizers

We can provide OEM and ODM customization services according to customers' requirements

Contact us today for a tailored proposal

Q1: Are you a factory or a trading company

A: We are a manufacturing factory, we focus on OEM and ODMQ

2: What kind of certification do you have

---ISO9000, ISO14001, CE, ROHS, Thiel, etcQ3: Product coverage and industries:

---Solar inverter、Lead-acid batteries、lithium battery、Solar generator、Solar panels

Q4: About the battery

Provide one-stop battery solutions; lead-acid and lithium batteries are available

Q5: Do you accept OEM/ODM

Yes, the entire series supports ODM/OEM, and the minimum order quantity is flexible;

Q6: About warranty ---The warranty period is 1 to 3 years, and the battery warranty is 1 to 3 years; differentiate between different products and models;

Q7: Can I participate in bidding projects

We support large-scale project bidding, authorized manufacturing, project design, and more

Q8: Are there overseas branches

Currently, the Southeast Asia Division, the Eastern Europe Serbia Division, and the Middle East Division are set up

WTHD presents the IP66 Low Voltage Three Phase 18kW Hybrid Solar Inverter, a reliable and powerful solution for professionals working from home who need steady, efficient power management. This robust unit delivers 18,000W (18kVA) of clean, stable three-phase output at selectable voltages of 220V, 230V, or 240V. It is built to handle demanding home office setups, small workshops, or multi-device environments with confidence

Engineered for resilience, the inverter features an IP66-rated enclosure that protects against dust and heavy jets of water. That level of protection means you can install it in semi-outdoor spaces or garages without worrying about dust ingress or occasional splashes. The durable casing also reduces maintenance needs, helping busy professionals focus on work instead of equipment upkeep

Performance is at the core of this inverter. It offers hybrid operation, combining solar input with battery storage and grid or generator backup. This flexible design optimizes the use of solar energy while ensuring uninterrupted power during outages. With advanced MPPT (Maximum Power Point Tracking) support, the inverter maximizes energy harvest from solar panels under varying sunlight conditions. MPPT enables faster, smarter adjustment to changing irradiance, improving overall system efficiency and delivering more usable solar power to your home office

For scalability, the WTHD 18kW hybrid inverter supports parallel operation. If your power needs grow over time, you can connect multiple units in parallel to increase total capacity without replacing the entire system. This makes the inverter a future-ready choice for professionals planning to expand their energy setup or add more power-hungry equipment

The inverter is designed for simplicity and professional use. Its low-voltage architecture enhances safety during installation and everyday operation. Installation is straightforward, with clear connections for PV input, battery banks, and AC output. The user interface is intuitive, providing essential information at a glance—such as real-time power, battery status, and solar generation—so you can make quick decisions about energy use. Remote monitoring options allow you to check system performance from your laptop or mobile device, enabling convenient management while you work

Efficiency and stability are key. The inverter maintains high conversion efficiency to ensure minimal loss between solar generation and usable AC power. It offers stable waveform output suitable for sensitive electronics, ensuring computers, network equipment, and precision devices run smoothly. Built-in protections guard against common electrical issues like overvoltage, overload, short circuits, and reverse polarity. These safeguards protect both the inverter and your connected devices, reducing downtime and potential damage

Energy management features help professionals working from home get the most from their solar investment. Programmable charging and discharging parameters let you prioritize solar usage, battery reserve levels, or grid interaction based on personal preferences or time-of-use rates. The inverter can be set to prioritize solar power during daylight hours and switch seamlessly to battery backup when needed. This intelligent behavior lowers utility bills and ensures critical equipment remains powered during outages

Thermal management is optimized for continuous performance. Efficient cooling mechanisms keep internal temperatures stable even under heavy load, preventing thermal shutdowns and prolonging component life. The inverter’s design also minimizes noise, making it suitable for home environments where a quiet workspace is important

Compatibility is broad. The WTHD 18kW hybrid inverter works with a wide range of solar panel configurations and battery types, making it adaptable to existing or new installations. Manufacturers and installers will find the unit adaptable to different system architectures, whether you’re integrating with lead-acid, lithium-ion, or other battery chemistries. Clear technical documentation supports faster commissioning and troubleshooting

Safety certifications and quality control are integral to the product. WTHD enforces stringent testing to ensure reliability under real-world conditions. The result is a dependable inverter that meets the needs of professionals who cannot afford interruptions. When paired with a properly sized solar array and battery bank, this inverter can provide long periods of self-sustained operation, reduce grid dependence, and enhance energy autonomy for home-based professionals

Aesthetics and practicality are balanced. The compact footprint makes the unit easier to place in limited spaces, while sturdy mounting options allow secure installation on walls or racks. Cable management features and labeled terminals simplify setup and reduce installation time, which is valuable for busy professionals seeking quick deployment

The WTHD IP66 Low Voltage Three Phase 18kW Hybrid Solar Inverter is a professional-grade solution tailored for professionals working from home who demand reliability, efficiency, and flexibility. It combines strong protection with advanced MPPT, hybrid operation, parallel capability, and user-friendly controls. High efficiency, stable output, comprehensive protections, and expandable capacity make it a smart investment for anyone looking to secure uninterrupted power, reduce energy costs, and build a scalable solar-plus-storage system that grows with their needs