Uninterruptable Power Supplies (94 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.

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Eaton 3S Mini 36W BS

  • Ideal protection for single DC voltage powered device
  • Up to 120min runtime
  • Compact & attractive design

£ 47.25  inc. vat

£ 39.37 ex. vat

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Free Delivery* APC Back-UPS Standby UPS - 850VA/520W - Type-C And A Charging Ports

APC Back-UPS Standby UPS - 850VA/520W - Type-C And A Charging Ports

  • 520W UPS
  • 16 Hour Recharge
  • 8 x AC Power
  • runtime: 34.1 min at 100 Watts
  • runtime: 14.3 min at 200 Watts

£ 113.99  inc. vat

£127.49save £13.50

£ 94.99 ex. vat

£106.24save £11.25

0% Interest offers available

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Free Delivery* APC Back-UPS BX Series BX750MI - UPS - 410 Watt - 750 VA

APC Back-UPS BX Series BX750MI - UPS - 410 Watt - 750 VA

  • UPS
  • AC 230 V
  • 410 Watt
  • 750 VA
  • 9 Ah

£ 96.48  inc. vat

£ 80.40 ex. vat

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Free Delivery* APC Back-UPS, 2200VA, Tower, 230V, 6x IEC C13 outlets, AVR

APC Back-UPS, 2200VA, Tower, 230V, 6x IEC C13 outlets, AVR

  • 8 Hour Recharge
  • 48 Second Stand-by
  • 230 V AC Input
  • 230 V AC Output
  • 6 x IEC 60320 C13

£ 257.99  inc. vat

£ 214.99 ex. vat

0% Interest offers available

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Free Delivery* APC Back-UPS 650VA - 230V - 8 x AC Power - 1 USB Charging Port

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

£ 110.86  inc. vat

£ 92.38 ex. vat

0% Interest offers available

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Free Delivery* APC RBC17 Replacement Battery Cartridge

APC RBC17 Replacement Battery Cartridge

£ 62.09  inc. vat

£68.99save £6.90

£ 51.74 ex. vat

£57.49save £5.75
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Free Delivery* APC RBC48 Replacement Battery Cartridge

APC RBC48 Replacement Battery Cartridge

£ 147.33  inc. vat

£ 122.77 ex. vat

0% Interest offers available

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APC Smart-UPS 1000VA LCD RM 700 Watt / 1000 VA with APC SmartConnect

  • Input Voltage: AC 220/230/240 V
  • Power Capacity: 700 Watt / 1000 VA
  • Input Connectors: Power IEC 60320 C14
  • Output connectors: 4 x power IEC 60320 C13

£ 825.90  inc. vat

£ 688.25 ex. vat

0% Interest offers available

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APC SurgeArrest Essential White Surge Protector

  • Input Voltage: AC 230 V
  • Input Connectors: 1 x power BS 1363A
  • Output connectors: 5 x power BS 1363
  • Dimensions (WxDxH): 38.5 cm x 7.2 cm x 5.5 cm

£ 17.26  inc. vat

£ 14.38 ex. vat

More Info
Free Delivery*
Eaton Ellipse PRO 1600 UPS - 1000 Watt

Eaton Ellipse PRO 1600 UPS - 1000 Watt

  • Power Capacity: 1000 Watt / 1600 VA
  • Input Voltage: AC 230 V
  • Frequency Required: 50/60 Hz
  • Run Time (Up To): 9 min at half load 5 min at 70% load

£ 400.82  inc. vat

£ 334.01 ex. vat

0% Interest offers available

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Free Delivery* Eaton Ellipse ECO 650 USB IEC - UPS - AC 230 V - 400 Watt - 650 VA - USB - 4 Output Connector(s) - 2U

Eaton Ellipse ECO 650 USB IEC - UPS - AC 230 V - 400 Watt - 650 VA - USB - 4 Output Connector(s) - 2U

  • For UPS advice email [email protected]
  • Power Capacity: 400 Watt / 650 VA
  • Input Voltage: AC 230 V
  • Frequency Required: 50/60 Hz

£ 140.19  inc. vat

£ 116.82 ex. vat

0% Interest offers available

More Info
Free Delivery* APC Back-UPS CS 650 - UPS - 400 Watt - 650 VA

APC Back-UPS CS 650 - UPS - 400 Watt - 650 VA

  • For UPS advice email [email protected]
  • Output Power Capacity: 400 Watts / 650 VA
  • Input Connector(s): 1 x power IEC 320 EN 60320 C14
  • Frequency Required: 50/60 Hz

£ 156.48  inc. vat

£ 130.40 ex. vat

0% Interest offers available

More Info
Free Delivery*
APC RBC7 Replacement Battery Cartridge #7

APC RBC7 Replacement Battery Cartridge #7

£ 288.78  inc. vat

£ 240.65 ex. vat

0% Interest offers available

More Info
Free Delivery* APC Back-UPS BX Series BX1600MI - UPS - 900 Watt - 1600 VA

APC Back-UPS BX Series BX1600MI - UPS - 900 Watt - 1600 VA

  • UPS
  • AC 230 V
  • 900 Watt
  • 1600 VA 7 Ah
  • Output connectors: 6

£ 188.98  inc. vat

£210.15save £21.17

£ 157.48 ex. vat

£175.12save £17.64

0% Interest offers available

More Info
Free Delivery* APC Back-UPS BX950MI - UPS - 520 Watt - 950 VA

APC Back-UPS BX950MI - UPS - 520 Watt - 950 VA

  • UPS
  • AC 230 V
  • 520 Watt
  • 950 VA
  • Output connectors: 6

£ 114.62  inc. vat

£ 95.51 ex. vat

0% Interest offers available

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Eaton 3S Mini 36W BS

  • Ideal protection for single DC voltage powered device
  • Up to 120min runtime
  • Compact & attractive design

QuickFind: 1287580

Mfr part code: 3SM36B

£ 47.25  inc. vat

£ 39.37 ex. vat

More Info
Free Delivery*

APC Back-UPS Standby UPS - 850VA/520W - Type-C And A Charging Ports

  • 520W UPS
  • 16 Hour Recharge
  • 8 x AC Power
  • runtime: 34.1 min at 100 Watts
  • runtime: 14.3 min at 200 Watts

QuickFind: 951015

Mfr part code: BE850G2-UK

£ 113.99  inc. vat

£127.49save £13.50

£ 94.99 ex. vat

£106.24save £11.25

0% Interest offers available

More Info
Free Delivery*

APC Back-UPS BX Series BX750MI - UPS - 410 Watt - 750 VA

  • UPS
  • AC 230 V
  • 410 Watt
  • 750 VA
  • 9 Ah

QuickFind: 1286467

Mfr part code: BX750MI

£ 96.48  inc. vat

£ 80.40 ex. vat

More Info
Free Delivery*

APC Back-UPS, 2200VA, Tower, 230V, 6x IEC C13 outlets, AVR

  • 8 Hour Recharge
  • 48 Second Stand-by
  • 230 V AC Input
  • 230 V AC Output
  • 6 x IEC 60320 C13

QuickFind: 1145316

Mfr part code: BX2200MI

£ 257.99  inc. vat

£ 214.99 ex. vat

0% Interest offers available

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Free Delivery*

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

QuickFind: 965800

Mfr part code: BE650G2-UK

£ 110.86  inc. vat

£ 92.38 ex. vat

0% Interest offers available

More Info
Free Delivery*

APC RBC17 Replacement Battery Cartridge

QuickFind: 85520

Mfr part code: RBC17

£ 62.09  inc. vat

£68.99save £6.90

£ 51.74 ex. vat

£57.49save £5.75
More Info
Free Delivery*

APC RBC48 Replacement Battery Cartridge

QuickFind: 85519

Mfr part code: RBC48

£ 147.33  inc. vat

£ 122.77 ex. vat

0% Interest offers available

More Info

APC Smart-UPS 1000VA LCD RM 700 Watt / 1000 VA with APC SmartConnect

  • Input Voltage: AC 220/230/240 V
  • Power Capacity: 700 Watt / 1000 VA
  • Input Connectors: Power IEC 60320 C14
  • Output connectors: 4 x power IEC 60320 C13

QuickFind: 835288

Mfr part code: SMT1000RMI2UC

£ 825.90  inc. vat

£ 688.25 ex. vat

0% Interest offers available

More Info

APC SurgeArrest Essential White Surge Protector

  • Input Voltage: AC 230 V
  • Input Connectors: 1 x power BS 1363A
  • Output connectors: 5 x power BS 1363
  • Dimensions (WxDxH): 38.5 cm x 7.2 cm x 5.5 cm

QuickFind: 745948

Mfr part code: PM5-UK

£ 17.26  inc. vat

£ 14.38 ex. vat

More Info
Free Delivery*

Eaton Ellipse PRO 1600 UPS - 1000 Watt

  • Power Capacity: 1000 Watt / 1600 VA
  • Input Voltage: AC 230 V
  • Frequency Required: 50/60 Hz
  • Run Time (Up To): 9 min at half load 5 min at 70% load

QuickFind: 701658

Mfr part code: ELP1600IEC

£ 400.82  inc. vat

£ 334.01 ex. vat

0% Interest offers available

More Info
Free Delivery*

Eaton Ellipse ECO 650 USB IEC - UPS - AC 230 V - 400 Watt - 650 VA - USB - 4 Output Connector(s) - 2U

  • For UPS advice email [email protected]
  • Power Capacity: 400 Watt / 650 VA
  • Input Voltage: AC 230 V
  • Frequency Required: 50/60 Hz

QuickFind: 454565

Mfr part code: EL650USBIEC

£ 140.19  inc. vat

£ 116.82 ex. vat

0% Interest offers available

More Info
Free Delivery*

APC Back-UPS CS 650 - UPS - 400 Watt - 650 VA

  • For UPS advice email [email protected]
  • Output Power Capacity: 400 Watts / 650 VA
  • Input Connector(s): 1 x power IEC 320 EN 60320 C14
  • Frequency Required: 50/60 Hz

QuickFind: 65711

Mfr part code: BK650EI

£ 156.48  inc. vat

£ 130.40 ex. vat

0% Interest offers available

More Info
Free Delivery*

APC RBC7 Replacement Battery Cartridge #7

QuickFind: 2988

Mfr part code: RBC7

£ 288.78  inc. vat

£ 240.65 ex. vat

0% Interest offers available

More Info
Free Delivery*

APC Back-UPS BX Series BX1600MI - UPS - 900 Watt - 1600 VA

  • UPS
  • AC 230 V
  • 900 Watt
  • 1600 VA 7 Ah
  • Output connectors: 6

QuickFind: 1258426

Mfr part code: BX1600MI

£ 188.98  inc. vat

£210.15save £21.17

£ 157.48 ex. vat

£175.12save £17.64

0% Interest offers available

More Info
Free Delivery*

APC Back-UPS BX950MI - UPS - 520 Watt - 950 VA

  • UPS
  • AC 230 V
  • 520 Watt
  • 950 VA
  • Output connectors: 6

QuickFind: 1128351

Mfr part code: BX950MI

£ 114.62  inc. vat

£ 95.51 ex. vat

0% Interest offers available

More Info
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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.