Eaton 160 → 294V Input Stand Alone Uninterruptible Power Supply, 1550VA (1.1kW), 5P

Leave disruptive system downtime in the dust with this UPS from Eaton. Its three built-in batteries provide electrical energy, so you can run connected devices for between 8 and 13 minutes (at 70% and 50% load respectively) in case of mains outages. A clever load-segment control feature lets you shut down only non-essential equipment, meaning you can prioritise available runtime to safeguard your most critical tasks. The pure sine-wave output gives you high-quality signals with minimal noise. This makes the unit a safe bet for use in demanding telecommunications applications involving sensitive components.

• Hot-swappable batteries make it easy to replace without shutting off connected devices
• Sealed lead-acid battery is maintenance-free and safe to handle
• 8 x IEC C13 outputs for connection to multiple devices
• Compatible with various operating systems, thanks to a USB port and RS232 serial port
• 97% efficient, so it wastes very little energy as heat and keeps cool via free air convection alone

A line-interactive UPS like this one means the batteries and inverter connect directly to the outputs. This gives you swift switching from mains to battery power in case of an outage and reduces the risk of transient voltages.