Uninterruptible Power Supply (UPS)
What is a UPS?
- Protects your computer’s valuable data and components from
power disturbances (by providing clean, secure power).
- Contains a replaceable “spill-free” battery and circuitry that converts
12 volts DC to 240V AC (Mains Voltage).
- Runs your computer for up to 10 minutes during a blackout. (Note:
Backup time depends on computer load and capacity of the UPS).
- Most blackouts are less than a minute so you can “ride through”
- Allows you to finish your work and shutdown your computer safely if
it is a prolonged blackout.
- Protects your computer, printer, scanner, modem, etc from low
level voltage surges and spikes. (Note: A surge power board in
conjunction with a UPS is recommended for medium to high
exposure voltage surge level areas).
Tips on choosing the correct model of UPS for your load
- Make a list of all the equipment that is required to keep running in
the event of a blackout. e.g. PC, monitor, hubs, routers, external
hard drives and other critical equipment.
- As a guide, approximate VA of your equipment is as follows:
PC = 200VA; monitors = 50VA (15"), 100VA (17"), 150VA (19"),
200VA (21"); hubs and routers = 50VA each; external hard
drives = 100VA.
- Add up the equipment to be connected to battery backup outlets.
e.g. PC + 17" monitor + hub: 200 + 100 + 50 = 350VA.
- Work out how much battery runtime you want in the event of a
blackout. Usually you select enough time to allow you to shutdown
your computer properly. e.g. 5 minutes.
- Select the model you need. Be sure to allow some extra capacity for adding more equipment in the
future (in the meantime, you will benefit from the extra backup time).