An Uninterruptible Power Supply (UPS) provides battery backup and power conditioning during outages, surges and voltage sags. It helps you keep working through brief interruptions or shut down equipment safely, protecting connected devices from unstable mains power.

Standby / offline: straightforward basic protection for PCs and home equipment.

Line-interactive: automatic voltage regulation for small business and network equipment.

Online double conversion: continuous power conversion with zero transfer time for servers, medical equipment and sensitive loads.

Three-phase: high-capacity protection for data centres and industrial applications. 

VA: the apparent power rating of a UPS.

 Watts: the real power draw—add up the wattage of connected equipment and select a UPS with 20–30% headroom. 

Runtime: how long the UPS can support your load; extended battery packs provide more time. 

Load: the percentage of UPS capacity in use; as a guide, keep it below around 80%.

Need help choosing? Contact Critical Power Solutions for sizing advice.