DOUBLE CONVERSION · N+1
UPS + BESS for Server Rooms and Cloud Infrastructure
Data Centers demand 99.999% uptime (5 nines) — LEONICS True Online UPS + BESS handles IT loads 50-800 kVA, with Modular PCS for Hyperscale.
50–800 kVA
UPS range
0 ms
Transfer
N+1 hot-swap
Redundancy
Design figures for a system sized to this use case. What a given site actually gets depends on its load shape, the PV and battery sizing and its tariff — the worked examples below show the inputs.
The Challenge
A server room has no moment in which a flicker is acceptable, and no window in which to shut down for maintenance.
- A sag is enough — IT equipment is more sensitive to supply quality than people expect; a sag of a fraction of a second can reboot a server.
- Maintenance cannot mean downtime — A single UPS means maintenance implies an outage — which a server room cannot absorb.
- Long backup on diesel costs — Relying on a generator alone for a long outage carries both fuel cost and the risk that it fails to start.
Data centre power — double conversion in front of the IT load
A True Online UPS sits between the utility and the racks, so the IT load never sees the incoming supply. A Modular PCS and BESS extend the ride-through beyond the UPS battery.
Schematic. Ratings are the catalogue range for these products, not a delivered installation.