Uninterruptable Power Supplies (101 products)

An uninterruptable power supply, or UPS for short, acts as an emergency back-up power source in the event of a power outage, giving you enough time to safely shut down computers, servers, and other devices.

Read more about Uninterruptable Power Supplies

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APC BE850G2-UK UPS 850VA 520W

  • Power Capacity: 520Watt / 850VA
  • Output connectors: 6 x power (UPS and surge), 2 x power (surge), 1 x 4 pin...
  • Input Connectors: 1 x power BS 1363A UK Plug

£ 121.49 inc.
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£ 101.24 ex.
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APC BK650EI UPS 400 Watt 650 VA

  • Power Capacity: 400Watt / 650VA
  • Output connectors: 1 x power IEC 60320 C13 (surge), 3 x power IEC 60320...
  • Input Connectors: 1 x power IEC 60320 C14

£ 161.99 inc.
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APC Back-UPS 650VA - 230V - 8 x AC Power - 1 USB Charging Port

  • 650 VA/400 W - Tower
  • 2.60 Minute Stand-by
  • 230 V AC
  • Input - 220 V AC, 230 V AC
  • Output - 1 x USB, 8 x AC Power

£ 103.98 inc.
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£ 86.65 ex.
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APC BX750MI UPS 410 Watt 750 VA

  • Output power capacity: 410 Watts / 750VA
  • Output Connections: 4 x IEC 320 C13 (Battery Backup)
  • Input Connections: IEC 60320 C14

£ 89.49 inc.
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£ 74.57 ex.
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APC BR900MI UPS 540 Watt 900 VA

  • Power Capacity: 540 Watt / 900 VA
  • Output connectors: 6 x power IEC 60320 C13

£ 232.98 inc.
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£ 194.15 ex.
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APC Smart-UPS SMT1000IC 700 Watt / 1000 VA with APC SmartConnect

  • Input Voltage: AC 220/230/240 V
  • Power Capacity: 700 Watt / 1000 VA
  • Input Connectors: 1 x power IEC 60320 C14
  • Output connectors: 8 x power IEC 60320 C13 ¦ 2 x IEC jumper

£ 600.99 inc.
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£ 500.82 ex.
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APC RBC7 Replacement Battery Cartridge

£ 282.39 inc.
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£ 235.32 ex.
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APC SMC1500I-2UC UPS 900 Watt 1500 VA

  • Power Capacity: 900 Watt / 1500 VA
  • Output connectors: 4 x power IEC 60320 C13, 2 x IEC jumper
  • Input Connectors: 1 x power IEC 60320 C14

£ 867.99 inc.
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£ 723.32 ex.
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APC APCRBC124 Replacement Battery Cartridge

£ 128.99 inc.
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£ 107.49 ex.
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APC RBC17 Replacement Battery Cartridge

£ 64.49 inc.
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£ 53.74 ex.
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APC RBC6 Replacement Battery Cartridge

£ 246.46 inc.
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£ 205.38 ex.
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APC BV650I UPS 375 Watt 650 VA

  • Power Capacity: 375 Watt / 650 VA
  • Output connectors: 6 x power IEC 60320 C13
  • Input Connectors: 1 x power IEC 60320 C14

£ 74.99 inc.
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£ 62.49 ex.
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APC SMT2200RMI2UC UPS 1980 Watt 2200 VA

  • Power Capacity: 1980 Watt / 2200 VA
  • Output connectors: 8 x power IEC 60320 C13, 1 x power IEC 60320 C19...
  • Input Connectors: 1 x power IEC 60320 C20

£ 1,698.99 inc.
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£ 1,415.82 ex.
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APC RBC55 Replacement Battery Cartridge

£ 499.98 inc.
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£ 416.65 ex.
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APC BR650MI UPS 390W 650 VA

  • Power Capacity: 390 Watt / 650 VA
  • Output connectors: 6 x power (UPS and surge)

£ 175.98 inc.
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£ 146.65 ex.
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APC BE850G2-UK UPS 850VA 520W

Free Delivery
  • Power Capacity: 520Watt / 850VA
  • Output connectors: 6 x power (UPS and surge), 2 x power (surge), 1 x 4 pin...
  • Input Connectors: 1 x power BS 1363A UK Plug

SKU: BE850G2-UK

£ 121.49 inc.
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SAVE £7.32WAS £128.81

£ 101.24 ex.
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SAVE £6.10WAS £107.34
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APC BK650EI UPS 400 Watt 650 VA

Free Delivery
  • Power Capacity: 400Watt / 650VA
  • Output connectors: 1 x power IEC 60320 C13 (surge), 3 x power IEC 60320...
  • Input Connectors: 1 x power IEC 60320 C14

SKU: BK650EI

£ 161.99 inc.
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£ 134.99 ex.
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APC Back-UPS 650VA - 230V - 8 x AC Power - 1 USB Charging Port

Free Delivery
  • 650 VA/400 W - Tower
  • 2.60 Minute Stand-by
  • 230 V AC
  • Input - 220 V AC, 230 V AC
  • Output - 1 x USB, 8 x AC Power

SKU: BE650G2-UK

£ 103.98 inc.
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£ 86.65 ex.
vat

Full options and terms on Product Page
0% Interest offers available
In Stock- Order now for delivery on Tuesday, 16th July
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APC BX750MI UPS 410 Watt 750 VA

Free Delivery
  • Output power capacity: 410 Watts / 750VA
  • Output Connections: 4 x IEC 320 C13 (Battery Backup)
  • Input Connections: IEC 60320 C14

SKU: BX750MI

£ 89.49 inc.
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SAVE £8.51WAS £98.00

£ 74.57 ex.
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SAVE £7.09WAS £81.66
In Stock- Order now for delivery on Tuesday, 16th July
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APC BR900MI UPS 540 Watt 900 VA

Free Delivery
  • Power Capacity: 540 Watt / 900 VA
  • Output connectors: 6 x power IEC 60320 C13

SKU: BR900MI

£ 232.98 inc.
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£ 194.15 ex.
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APC Smart-UPS SMT1000IC 700 Watt / 1000 VA with APC SmartConnect

Free Delivery
  • Input Voltage: AC 220/230/240 V
  • Power Capacity: 700 Watt / 1000 VA
  • Input Connectors: 1 x power IEC 60320 C14
  • Output connectors: 8 x power IEC 60320 C13 ¦ 2 x IEC jumper

SKU: SMT1000IC

£ 600.99 inc.
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£ 500.82 ex.
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Full options and terms on Product Page
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In Stock- Order now for delivery on Tuesday, 16th July
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APC RBC7 Replacement Battery Cartridge

Free Delivery

SKU: RBC7

£ 282.39 inc.
vat

£ 235.32 ex.
vat

Full options and terms on Product Page
0% Interest offers available
In Stock- Order now for delivery on Tuesday, 16th July
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APC SMC1500I-2UC UPS 900 Watt 1500 VA

  • Power Capacity: 900 Watt / 1500 VA
  • Output connectors: 4 x power IEC 60320 C13, 2 x IEC jumper
  • Input Connectors: 1 x power IEC 60320 C14

SKU: SMC1500I-2UC

£ 867.99 inc.
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£ 723.32 ex.
vat

Full options and terms on Product Page
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In Stock- Order now for delivery on Tuesday, 16th July
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APC APCRBC124 Replacement Battery Cartridge

Free Delivery

SKU: APCRBC124

£ 128.99 inc.
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£ 107.49 ex.
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In Stock- Order now for delivery on Tuesday, 16th July
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APC RBC17 Replacement Battery Cartridge

Free Delivery

SKU: RBC17

£ 64.49 inc.
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£ 53.74 ex.
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APC RBC6 Replacement Battery Cartridge

Free Delivery

SKU: RBC6

£ 246.46 inc.
vat

SAVE £50.36WAS £296.82

£ 205.38 ex.
vat

SAVE £41.97WAS £247.35
Full options and terms on Product Page
0% Interest offers available
In Stock- Order now for delivery on Tuesday, 16th July
View Product

APC BV650I UPS 375 Watt 650 VA

Free Delivery
  • Power Capacity: 375 Watt / 650 VA
  • Output connectors: 6 x power IEC 60320 C13
  • Input Connectors: 1 x power IEC 60320 C14

SKU: BV650I

£ 74.99 inc.
vat

£ 62.49 ex.
vat

In Stock- Order now for delivery on Tuesday, 16th July
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APC SMT2200RMI2UC UPS 1980 Watt 2200 VA

  • Power Capacity: 1980 Watt / 2200 VA
  • Output connectors: 8 x power IEC 60320 C13, 1 x power IEC 60320 C19...
  • Input Connectors: 1 x power IEC 60320 C20

SKU: SMT2200RMI2UC

£ 1,698.99 inc.
vat

£ 1,415.82 ex.
vat

Full options and terms on Product Page
0% Interest offers available
In Stock- Order now for delivery on Tuesday, 16th July
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APC RBC55 Replacement Battery Cartridge

Free Delivery

SKU: RBC55

£ 499.98 inc.
vat

£ 416.65 ex.
vat

Full options and terms on Product Page
0% Interest offers available
In Stock- Order now for delivery on Tuesday, 16th July
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APC BR650MI UPS 390W 650 VA

Free Delivery
  • Power Capacity: 390 Watt / 650 VA
  • Output connectors: 6 x power (UPS and surge)

SKU: BR650MI

£ 175.98 inc.
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£ 146.65 ex.
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An uninterruptable power supply, or UPS for short, acts as an emergency back-up power source in the event of a power outage, giving you enough time to safely shut down computers, servers, and other devices.

What's an Uninterruptable Power Supply?

Put simply, you can think of an uninterruptable power supply as a big battery bank. When everything's working as normal, as UPS will pass power from the wall through to whatever's plugged into to, like an extension lead, all while charging its internal battery. If the power were to cut out for any reason, the UPS would then instantaneously swap over to battery power, ensuring that none of its device shut off unexpectedly. The most common devices to hook up to a UPS are non-battery-powered devices, such as desktops and servers, which can't weather a split-second power loss like, say, a laptop.

Why Do I Need an Uninterruptable Power Supply?

Uninterruptable power supplies are, for the most part, targeted at businesses. As you can imagine, even a momentary lapse of power can wreak havoc depending on the task at hand. In data centres, for example, UPSs are practically essential as the fallout from a server losing power could result in hardware failure and, in turn, irreversible data corruption.

That being said, it's not as if you can't use an uninterruptible power supply in the home. While a surge protector may protect your hardware from physical damage when there's a power cut, it won't give your devices the time to power off properly. This could cause an important document you were in the middle of working on, or even your device's entire operating system, to corrupt beyond repair. It's worth picking up a UPS for the same reason you'd back up your data to an external hard drive. You may not need a UPS 99% of the time, but when you do, it's a lifesaver.

What Should I Look For In an Uninterruptable Power Supply?

Capacity

Like any battery, the batteries of uninterruptible power supplies don't last forever. When the power goes out, a UPS will only be able to provide power to its connected devices for so long. You shouldn't expect to run a high-wattage computer off a UPS's battery for a whole days' worth of work. A UPS is very much an emergency back-up power source, one that'll buy you enough time to either get the power back online or save any important work and shut devices down in a safe, controlled manner.

The capacity of an uninterruptable power supply could mean the difference between only having a handful of minutes or a breezy half-hour to sort your power situation out. Of course, the runtime of a UPS's battery will depend on what's plugged into it. A UPS will last longer if it's only got to support a single low-powered computer and a basic monitor, for example. So, make sure to buy a UPS with a large enough capacity to support all your devices. It's recommended that the total power draw of your set-up shouldn't exceed more than 80% of a UPS's capacity. The extra headroom will help to account for transient power spikes and the like.

Form-Factor

There's two categories of UPS: tower and rack-mounted. Of the two, tower uninterruptable power supplies are the more user-friendly. They feature a free-standing design similar to a tower computer case. As a result, you don't need to install a tower UPS, it can just slide underneath your desk and sit right alongside your desktop. Plus, tower UPSs tend to feature a few more quality-of-life features compared to most standard rack-mounted UPSs, such as an LCD display to show how many minutes of charge the UPS's battery has got left. As the name implies, a rack-mounted UPS is installed in a rack cabinet, acting as an emergency back-up power source for servers and other rack-mounted devices.

Outlets

Also, you'll want to consider how many power outlets you need on your uninterruptable power supply. There's UPSs which boast stacks upon stacks of power outlets, ready to support a complete set-up. Small UPSs are also available, which are ideal for performing a single yet critical function. However, do note that on some models, not all the power outlets are connected to the battery. Rather, they're just surged-protected outlets. This allows the user to hook up non-essential peripherals and accessories, like a secondary monitor, without them draining the battery.

Uninterruptable Power Supplies at Ebuyer

Here at Ebuyer, we stock a wide range of both tower and rack-mounted uninterruptable power supplies from leading brands, including APC, Eaton, and more. You'll also find all the accessories you need to make the most of your UPS, from hot-swappable batteries to power distribution units. Spread the cost of your purchase with our flexible finance offers. And if you need your new UPS by tomorrow, next-day delivery is also available.