What is a UPS? A UPS is a life support system for you computer.

It protects against loss of data and hardware damage resulting from power cuts or fluctuations in the mains supply. The UPS has its own battery, which cuts in automatically in the event of a power cut thus protecting you from loosing unsaved data you are working on. If the mains stays off, then the UPS will remain working giving you time to save your work and shut down your system safely.
A UPS will also filter your power supply against spikes to some extent, but only models that filter continuously and provide galvanic isolation give you the added protection against hardware and software malfunctions. A UPS can be connected to, file servers, workstations and peripherals, so printers, scanners, modems and external disks can all be protected.

Although we may source from any supplier of UPS equipment, our preferred choice after testing is the 'Invensys' range of Uninterruptible Power Supplies, due to reliability and features included for the price.

Examples of the Invensys range include the Powerware 5115, 5125 and 5140 as show below.

Powerware 5115



Special Features

Advanced Battery Management (ABM™)doubles battery service life.
Buck and Boost voltage regulation corrects incoming voltage fluctuations.

Pure sine wave output delivers smooth continuous power.
Enhanced battery recharge time quickly prepares UPS for the next power outage.

Network Transient Protector isolates equipment from "back door" power surges traveling through network and phone lines.

Hot-Swappable Batteries simplify service and extend service life of UPS.

Bundled with power management software to ensure data integrity.

Rating: 500-1400 VA
Voltage: 100-120 Vac; 220/230/240 Vac
Frequency: 50 and 60 Hz (auto-sensing)
Configuration: Tower

Powerware 5125

Special Features

Available in Two-in-One (rack and tower) form factor and tower configurations

Advanced Battery Management Plus (ABM™ Plus) doubles battery service life

Simple installation and operation

User-friendly front panel with LEDs, provides UPS status, power usage, and other critical UPS parameters

Hot-swappable batteries

Extended Battery Modules (EBMs) extend run time capabilities

Buck/Double Boost voltage regulation with pure sine wave output

Load Segments (separate receptacle groups) enable scheduled shutdowns and maximize run time for each critical device

Complete offering of power management software included to ensure data integrity

Powerware 5125 Function Configurator Tool

The Powerware 5125 Function Configurator is a Windows based, DOS environment software tool that simplifies the process of changing or setting Powerware 5125 UPS selectable functions.

Rating: 1000VA - 3000VA
Voltage: 120, 208 and 230Vac
Frequency: 50/60 Hz (auto-sensing)
Configuration: Two-in-One Form Factor

Powerware 5140



Special Features

Power Factor Corrected (PFC) design protects more equipment
6U rack height conserves valuable rack space

Advanced Battery Management (ABM™) - doubles battery service life

Extended Battery Modules (EBMs) prolong run times

Load Segments (separate receptacle groups) enable scheduled shutdowns and maximize run times for critical devices.

Rating: 6000VA/6000Watts
Voltage: : 200-240 VAC
Frequency: 50 and 60 Hz
Configuration: 6U rack-mount for standard 19-inch racks
Topology: Line-interactive (with pure sine wave output)

Specification Overview

Powerware Factor Corrected (PFC) design supports more equipment

Compact rack design (6U) conserves valuable rack space

Advanced Battery Management (ABM™) doubles battery service life
Buck and Boost voltage regulation provides pure sine wave output

Modular design eases scheduled shutdowns and maximizes runtime for critical devices

Hot-Swappable batteries and Manual Bypass Switch simplify service