Legrand KEOR FLEX
Keor FLEX is a cutting-edge three-phase online double conversion UPS engineered for data centres, AI data centres and high-performance IT environments. This modular UPS features a fully hot-swappable architecture, ensuring seamless scalability without downtime while optimising Total Cost of Ownership (TCO).
Overview
With industry leading 98.4% efficiency in double conversion mode, Keor FLEX significantly reduces energy consumption and data centre cooling costs, making it a top choice for high-efficiency UPS solutions.
Its scalable design supports up to 1.2 MW per frame and expands to 4.8 MW, allowing precise power sizing to match critical loads while ensuring optimal protection.
The full hot-swap modularity, total front access, and predictive diagnostics simplify maintenance, reducing operational costs and enhancing UPS system availability.
Keor FLEX offers flexible installation options, including top/down cable or busbar connections, TNC/TNS grounding, and Icw limitation, ensuring compatibility with diverse data centre power infrastructures.
Additionally, Smart Grid functions and advanced remote monitoring & control enhance operational efficiency, making Keor FLEX the ideal UPS for AI data centres and mission-critical applications.
Key Features
Additional Features
- Efficiency in ECO mode up to 99%
- Modular redundancy architecture
- Power module of 100kW
- Modular static bypass for fast service
- Hot swappable modules
- Logic control distributed between modules
- 10” touch screen display
- Multicoloured status bar light
- Output power factor = 1
- Controlled noise level
- Smart grid ready
- Total front access
- Compatible with Li-Ion batteries and VRLA batteries
Technical Specification 
| RATING |
1200kW |
| RATING KVADIMENSIONS (WxHxD) |
2250W x 2100H x 1260D |
| INPUT PHASE | Three Phase |
| INPUT VOLTAGE |
400V |
| INPUT VOLTAGE TOLERANCE RANGE |
+ / - 20% |
| INPUT FREQUENCY |
50/60 Hz |
| OUTPUT OUTPUT PHASE | Three Phase |
| PARALLEL |
Up to 4.8MW across 4 cabinets (100kW modules) |
| OUTPUT POWER FACTOR | 1 |
| OUTPUT WAVEFORM | Sinusoidal |
| OUTPUT VOLTAGE |
380-400-415 (selectable) |
| OUTPUT FREQUENCY |
50/60 Hz |
| OUTPUT EFFICIENCY |
Up to 98.4% (99% in ECO Mode) |
| BATTERY TYPE |
VRLA or LI-Ion |
| NOMINAL UPS BATTERY VOLTAGE |
420 min – 680 max |
| BATTERY CHARGE CAPACITY |
20kW per module (at nominal input voltage) |
| OPERATING TEMPERATURE TOLERANCE | 0 - 40°C |
| RELATIVE HUMIDITY |
<95% (non-condensing) |
| COMMUNICATION |
SNMP TCP/IP (Slot or Embedded), USB, Service USB, ModBus, Dry Contacts, Parallel port, Smartgrid |
| PARALLEL |
yes up to 4 units |
Resources
Keor FLEX Product Brochure
Keor FLEX Tech Spec
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