The high - performance DSP and optimized control circuit design contribute to its superior performance. The wide DC input voltage range design allows for compatibility with a variety of high - capacity battery systems, enabling the creation of customized energy storage solutions for large - scale applications.
This model supports grid - connected charging & discharging and off - grid independent inverter functions. The adjustable reactive power and active power provide the flexibility to manage power according to the complex requirements of large - scale operations. Optionally, it can support diesel generator access, enabling seamless transitions between on - grid and off - grid operation. It can cold start with a large load and handle three - phase 100% unbalanced loads, ensuring stable power supply in large - scale electrical setups.
The AC and DC dual - power backup system is a cornerstone of its reliability, ensuring that the control system remains powered at all times, even during the most challenging power outages or grid instabilities. With an exceptional high power density and a maximum efficiency of up to 96%, it maximizes the utilization of electrical energy, making it an ideal choice for large - scale power management.
| Model | LEG-250K-TT-B | LEG-500K-TT-B |
| DC Parameters | ||
| Max.DC Voltage [V] | 880 | |
| DC Voltage Range [V] | 600~880 | |
| 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 | |
| Rated Grid Frequency [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 |
| Max. 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] | 1600 | 3000 |
| Dimensions (W×D×H) [mm] | 1200×800×2100 | 1600×1040×2200 |
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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