/ Ecosystems · infrastructure system
Online (Double-Conversion) UPS.
Also known as · Online UPS · Double-conversion UPS
Double-conversion uninterruptible power supply. Rectifies AC to DC and inverts back to clean AC, isolating the load from grid disturbances. Default for mission-critical IT and life-safety equipment.
- Entity kind
- infrastructure system
- Relevance
- 95 / 100
- Authority
- 90 / 100
- Aliases
- Online UPS · Double-conversion UPS
/ Engineering meaning
What it is and where it sits
Double-conversion uninterruptible power supply. Rectifies AC to DC and inverts back to clean AC, isolating the load from grid disturbances. Default for mission-critical IT and life-safety equipment.
Tags · power · ups · lifecycle
· Engineering graph · infrastructure system · 2 relationships
Where Online (Double-Conversion) UPS sits
Role in the system
Double-conversion uninterruptible power supply. Rectifies AC to DC and inverts back to clean AC, isolating the load from grid disturbances. Default for mission-critical IT and life-safety equipment.
What it connects to
Complements
- Vertiv EnergyCore BESS
Vertiv's LFP battery-energy-storage cabinet line. Drop-in lithium replacement for VRLA banks on mission-critical UPS, with eight-year TCO advantages above 20 kVA.
Depends on
- LFP (Lithium Iron Phosphate) Chemistry
The lithium-ion chemistry of choice for stationary BESS — thermally stable, safe for indoor install, 6,000+ cycle life, with eight-year TCO advantages over VRLA above 20 kVA loads.
Interoperability
Interoperability matrices that feature this entity
Services
Where this maps to services
Sectors
Where this matters most by sector
Comparisons
Related engineering decisions
Decision · Power & UPS
Online UPS vs BESS-backed backup — the right ride-through
You are deciding how to protect a critical load and are weighing instantaneous ride-through against longer-duration backup or an energy strategy.
Decision · Power & UPS
Online UPS vs line-interactive UPS — the topology decision
You are choosing UPS topology for a specific load group and need to know whether a transfer event is acceptable to the equipment behind it.
Glossary
Related glossary terms
BMS
Online UPS
A double-conversion uninterruptible power supply that continuously rectifies AC to DC and inverts back to clean AC, isolating the load from grid disturbances. D…
BMS
UPS
Uninterruptible Power Supply. Generic term for any device that provides backup electrical power; in our practice always refers to online double-conversion UPS u…
BMS
BESS
Battery Energy Storage System. Lithium-ion (typically LFP) battery banks paired with online UPS or stand-alone inverters, used for peak-shave, demand-response, …
Semantic similarity
Similar entities in the graph
Similarity 100
Vertiv EnergyCore BESS
Vertiv's LFP battery-energy-storage cabinet line. Drop-in lithium replacement for VRLA banks on mission-critical UPS, with eight-year TCO advantages above 20 kVA.
Similarity 47
LFP (Lithium Iron Phosphate) Chemistry
The lithium-ion chemistry of choice for stationary BESS — thermally stable, safe for indoor install, 6,000+ cycle life, with eight-year TCO advantages over VRLA above 20 kVA loads.
Similarity 15
Modbus Protocol
Industrial serial and TCP protocol. Lingua franca of energy meters, VFDs and legacy controllers — the integration bridge between BMS, BESS and industrial plant.
Similarity 12
NFPA 855 — BESS Installation
US standard for the installation of stationary energy-storage systems. LFP-chemistry banks are NFPA 855-compliant for indoor installation without bespoke fire suppression; NMC chemistry is not.
· Engineering entity · infrastructure system