Eaton 176 → 276V Input Rack Mount, Stand Alone Uninterruptible Power Supply, 5000VA (4.5kW), 9SX

Keep your power-hungry applications on the go around the clock with this advanced uninterruptible power supply from Eaton. Its 15 built-in 9V batteries can provide up to 12 minutes of energy at its full 4500W rating. This makes it a practical pick for running load-drawing equipment like industrial motors or medical devices through a mains power outage. Eaton's smart Active Battery Management system extends battery life by up to 50%, thanks to its innovative three-stage charging technique and even gives you a heads up when they need replacing.

• Supports serial, USB and relay connectivity with a slot for an optional card, so you get lots of options when it comes to communication
• For uninterrupted service, hot-swappable internal batteries mean you don't have to turn the UPS off to put in replacements
• Multilingual graphical LCD interface makes it easy to control, wherever you are in the world
• Load segment control function lets you shut down non-critical kit promptly, so you can extend runtime for your essential tasks

As an online, double-conversion UPS, it constantly monitors electrical conditions so it can reliably regulate the unit's voltage and frequency parameters and keep it running consistently.