BATTERY ENERGY STORAGE SYSTEMS (BESS)
MC-L522 — 250 kW / 522 kWh liquid-cooled C&I system
Country: China · Model: MC-L522
A larger-capacity C&I energy storage cabinet of 522.5 kWh and 250 kW, liquid-cooled and built on 314 Ah LiFePO4 cells. It works in commercial and industrial storage systems where rated power has to be held for a little over two hours.
- Chemistry
- LiFePO4, 314 Ah
- Energy
- 522.5 kWh
- Power
- 250 kW
- DC voltage
- 832 V (715–936 V)
Technical specifications
| Chemistry | LiFePO4, 314 Ah |
|---|---|
| Energy | 522.5 kWh |
| Power | 250 kW |
| DC voltage | 832 V (715–936 V) |
| Cooling | liquid |
| Ingress protection | IP54, C4 |
| Weight | ≤ 5,500 kg |
| Customs codes (for reference) | |
| HS code | 8507.60 |
| UKTZED code (Ukraine) | 8507600000 |
| CN code (EU) | 85076000 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
Nominal DC voltage is 832 V, with a 715–936 V operating window. The inverter or PCS for this cabinet is selected against that range, and a converter from the 768 V cabinets cannot be reused here without checking. The liquid loop evens out cell temperature across the rack, so the cabinet holds a long discharge at full power. The enclosure is IP54, and C4 corrosion class suits open-air placement in an industrial zone. The cabinet links to the PCS on the DC side, so the length and cross-section of that DC line go into the design from the start. The cabinet weighs no more than 5,500 kg, which matters for the foundation design and the choice of crane for unloading.
How to choose
Choose this cabinet when 250 kW needs 522.5 kWh of reserve in a single enclosure. If a PCS is already in place for the 768 V platform (648–876 V), the MC-L430 / MS-L430 with 430.08 kWh and 200 kW is the logical match. Sites with EV charging have the MC-LC430 / MC-LC480 with DC posts of up to 420 kW, and the megawatt level is reached with the WS-L5000 container holding 5,016 kWh.
Request a price and lead time
MC-L522 — 250 kW / 522 kWh liquid-cooled C&I system. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
What is the DC voltage of the MC-L522?
832 V nominal, with a 715–936 V operating range.
What cells does the MC-L522 use?
LiFePO4 cells of 314 Ah, adding up to 522.5 kWh.
How much does the MC-L522 cabinet weigh?
No more than 5,500 kg.
How many hours of discharge does the MC-L522 give?
At 250 kW, the 522.5 kWh reserve lasts a little over two hours.
Will a converter from the MC-L430 work with the MC-L522?
Only after checking the DC range. The MC-L430 window is 648–876 V, the MC-L522 window is 715–936 V, and the converter has to cover the latter.
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Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.