The LEI - 250K/500K - TT hybrid inverter serves as the core hub and intelligent control center of PV-storage microgrids. Its primary role is to coordinate and manage multiple distributed energy resources, including photovoltaic generation, energy storage systems, diesel generators, and local loads within a defined network, ensuring autonomous, stable, and efficient microgrid operation.
By integrating PV generation, battery storage, and grid interaction into a single platform, the LEI - 250K/500K - TT enables seamless energy flow control and intelligent dispatch under both grid-connected and islanded conditions. It dynamically balances supply and demand, optimizes renewable energy utilization, and maintains power stability even under fluctuating loads or grid disturbances.
Designed for complex energy scenarios, the inverter provides fast mode switching, high operational reliability, and strong adaptability, making it an ideal solution for building smart microgrids in commercial, industrial, remote, and grid-constrained environments.
The LEI - 250K/500K - TT features a cutting-edge power frequency topology, designed to optimize power conversion efficiency across a wide range of operating conditions. This advanced design ensures seamless integration with various power sources, allowing for smooth transitions between grid-connected, off-grid, and hybrid power systems. By minimizing power losses during conversion, the power frequency topology enables the LEI - 250K/500K - TT to deliver maximum power output while maintaining stable voltage and frequency levels. This not only reduces operational costs but also enhances the overall performance of the power system, making it an ideal choice for energy-intensive applications.
| Model | LEI-250K-TT | LEI-500K-TT |
| PV Parameters | ||
| Max. PV Input Voltage [V] | 880 | |
| Max. PV Power [kW] | 300/360 | 600/660/720 |
| No. of MPPTs | 5/6 | 10/11/12 |
| MPPT Voltage Range [V] | 250~850 | |
| Max. Input Current per MPPT [A] | 150 | |
| Battery Parameters | ||
| Max. DC Voltage [V] | 880 | |
| DC Voltage Range [V] | 600~880 | |
| Max. Charge Power [kW] | 300/360 | 600/660/720 |
| AC Parameters (On Grid) | ||
| Rated Output Power [kW] | 250 | 500 |
| Max. Output Power [kVA] | 275 | 550 |
| Max. Output Current [A] | 397 | 793 |
| Rated Grid Voltage [V] | 3W/N/PE,230/400 | |
| Rated Grid Frequency [Hz] | 50/60 | |
| Grid Frequency Range [Hz] | 47.5~52.5 | |
| Power Factor | 1 (0.9 leading to 0.9 lagging) | |
| THDi | ≤3% (at rated power) | |
| AC Parameters (Off Grid) | ||
| Rated Output Power [kW] | 250 | 500 |
| Maximum Output Power [kVA] | 275 | 550 |
| Rated Output Voltage [V] | 400 | |
| Rated Output Frequency [Hz] | 50/60 | |
| THDi | ≤3% (Linear Load @ Rated Power) | |
| Unbalanced Load Capability | 100% | |
| Protections | ||
| DC Overvoltage Protection | Yes | |
| DC Short-circuit Protection | Yes | |
| AC Overvoltage Protection | Yes | |
| Reverse Polarity Protection | Yes | |
| Over-temperature Protection | Yes | |
| Efficiency | ||
| Max. Efficiency | 95% | 96% |
| General Parameters | ||
| Isolation Transformer | Yes | |
| Ingress Protection Rating | IP20 | |
| Operating Temperature [°C] | -30~+55 | |
| Relative Humidity | 0~95%,Non-condensing | |
| Cooling Method | Temperature-Controlled Forced Air Cooling | |
| Max. Altitude [m] | 4000(>3000 Derating) | |
| Display | Touch screen | |
| Communication Interface | RS485 / CAN / Ethernet | |
| Communication Protocol | Modbus-RTU / TCP | |
| Weight [kg] | 1900/1930 | 3100/3130/3160 |
| Dimensions (W×D×H) [mm] | 600*1000*2100+1200*800*2100 | (600*1000*2100)*2+1600*1050*2100 |
Our factory
FAQ
Q: Is there a process of testing the products in place before they are shipped out?
A: Absolutely. Prior to dispatching each consignment, we subject all products in the batch to comprehensive testing. This is done to confirm that every single item meets the established quality criteria and is fit for delivery. Our strict pre - shipment testing regime is an integral part of our commitment to providing you with products of the highest standard.
Q: Is there a minimum quantity per order that I need to be aware of for placing an order with your company?
A: Yes, there is a minimum order quantity requirement. Typically, the minimum order quantity is set at one unit per order. This standard helps us manage our production schedules and resources effectively while still being able to serve customers with smaller initial needs.
Q: What sorts of delivery methods do you offer for getting the products to the customers?
A: Sea freight is one of the shipping options we are able to provide for transporting your goods.
Q: Is it possible for us to pay a visit to your factory prior to placing an order?
A: Absolutely! We wholeheartedly welcome you to visit our factory. Establishing a face - to - face connection is an excellent way to initiate a strong and mutually beneficial business relationship. We believe that such a visit will provide you with valuable insights into our operations, production capabilities, and quality control processes, which are essential for building trust and confidence in our partnership.
Q: Is there a possibility for us to act as your agent?
A: Certainly! We're delighted to explore an agency partnership with you. Currently, we're running significant market - wide promotions. To get all the specific information regarding the agency terms and our promotional strategies, kindly reach out to our overseas manager. We're looking forward to starting this exciting collaboration and achieving great success together.
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