512NESP high-voltage 512 V LFP systems for data center UPS
Country: China · Model: 512NESP
512NESP rack LFP systems have a nominal voltage of 512 V and work in discharge modes from 0.5C to 2C. They are connected to UPS units of data centers, cloud sites, hospitals, airports and rail transport, and up to 10 racks are combined in parallel for greater power.
- Models
- 512NESP55, 512NESP160, 512NESP200, 512NESP250
- Chemistry
- LFP, ceramic separator
- Nominal voltage
- 512 V
- Modes
- 0.5C–2C
Technical specifications
| Models | 512NESP55, 512NESP160, 512NESP200, 512NESP250 |
|---|---|
| Chemistry | LFP, ceramic separator |
| Nominal voltage | 512 V |
| Modes | 0.5C–2C |
| Scaling | up to 10 racks in parallel |
| BMS | three-level with active balancing |
| Certification | UL, IEC |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The series includes four sizes, 512NESP55, 512NESP160, 512NESP200 and 512NESP250, with the same voltage and chemistry. The nominal 512 V corresponds to the battery bus of a server-class UPS, and it is checked against the permissible DC input range of the specific UPS. The 0.5C–2C range covers discharge from roughly two hours to half an hour, that is, it covers both a short backup before the diesel generator starts and a longer autonomy. The ceramic separator between the electrodes keeps its shape when heated and reduces the risk of an internal short circuit in the machine room. The BMS has three levels of control and active balancing, which equalises the cell charge by redistributing energy rather than dissipating it as heat. The parallel scheme makes it possible to take one rack out for servicing while the others carry the load. The systems have UL and IEC certification.
How to choose
The size is selected by the energy the UPS must deliver in the specified autonomy time, and the number of racks by the load power, with a limit of 10 racks in parallel. For a short backup the system works at the upper limit of 2C, for autonomy of several hours closer to 0.5C. If the project provides for lead-acid batteries, this range has high-rate HRL VRLA units of 2 and 12 V, which deliver 300–845 W per 12 V unit in 15 minutes of discharge down to 1.67 V per cell. Small UPS units with a 48 V bus are equipped with NESR48100 modules of 4.8 kWh.
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512NESP high-voltage 512 V LFP systems for data center UPS. We reply within one business day.
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FAQ
What is the nominal voltage of the 512NESP rack?
The nominal voltage is 512 V, and it is checked against the battery input range of the UPS at the design stage.
How many 512NESP racks can be connected in parallel?
Up to 10 racks. The parallel scheme increases the energy and power of the UPS battery.
What does the 0.5C–2C mode mean for a UPS battery?
At 2C the battery discharges in about half an hour, at 0.5C in about two hours. The shorter the required autonomy time, the closer to 2C the system works.
Why does an LFP battery for a data center have a ceramic separator?
A ceramic separator keeps its shape when heated and reduces the risk of an internal short circuit. For a machine room next to servers this is an additional safety margin.
Which models are in the 512NESP series?
Four models: 512NESP55, 512NESP160, 512NESP200 and 512NESP250. All have a nominal 512 V and LFP chemistry.
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