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.
Min (£20)
Max (£5000)
Uninterruptable Power Supplies
Read more about Uninterruptable Power Supplies
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
£
97.98
inc.
vat
£ 81.65 ex.
vat
APC Back-UPS BX950MI UPS 520 Watt 950VA
- UPS
- AC 230 V
- 520 Watt
- 950 VA
- Output connectors: 6
£
84.99
inc.
vat
£ 70.82 ex.
vat
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
£
90.99
inc.
vat
£ 75.82 ex.
vat
APC BR900MI UPS 540 Watt 900 VA
- Power Capacity: 540 Watt / 900 VA
- Output connectors: 6 x power IEC 60320 C13
£
222.72
inc.
vat
£ 185.60 ex.
vat
APC RBC17 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Battery Cartridge
- Internal
- Lead Acid
£
62.00
inc.
vat
£ 51.66 ex.
vat
APC APCRBC113 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Lead Acid
- attery Form Factor: Internal
£
62.87
inc.
vat
£ 52.39 ex.
vat
APC Replacement Battery Cartridge #106
- For UPS advice email [email protected]
- Hot-swappable batteries
- Plug-and-Play installation
£
55.06
inc.
vat
£ 45.88 ex.
vat
APC RBC48 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Replacement UPS Battery
- Lead Acid
£
147.50
inc.
vat
£ 122.91 ex.
vat
APC SMC1000IC UPS 600 Watt 1000 VA
- Power Capacity: 600 Watt / 1000 VA
- Output connectors: 8 x power IEC 60320 C13
- Input Connectors: 1 x power IEC 60320 C20
£
445.98
inc.
vat
£ 371.65 ex.
vat
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
£
813.47
inc.
vat
£ 677.89 ex.
vat
APC BX1600MI UPS 900 Watt 1600 VA
- Output power capacity: 900 Watt / 1600 VA
- Output Connections: 6 x IEC 320 C13 (Battery Backup)
- Input Connections: 1 x power IEC 60320 C14
£
147.99
inc.
vat
£ 123.32 ex.
vat
APC RBC18 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Battery Cartridge
- 1 x Lead Acid
£
195.02
inc.
vat
£ 162.51 ex.
vat
Eaton 3S550B UPS 330 Watt 550 VA
- Power Capacity: 330 Watt / 550 VA
- Output connectors: 3 x power BS (surge), 3 x power BS (UPS and surge)...
£
87.00
inc.
vat
£ 72.50 ex.
vat
Eaton 5P1550IBS UPS 1100 Watt 1550 VA
- Power Capacity: 1100 Watt / 1550 VA
- Output connectors: 8 x power IEC 60320 C13
- Input Connectors: 1 x power IEC 60320 C14
£
651.99
inc.
vat
£ 543.32 ex.
vat
APC RBC7 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Replacement UPS Battery
- Lead Acid
£
278.97
inc.
vat
£ 232.47 ex.
vat
EXDISPLAY APC RBC18 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Battery Cartridge
- 1 x Lead Acid
£
155.99
inc.
vat
£ 129.99 ex.
vat
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
£
66.99
inc.
vat
£ 55.82 ex.
vat
APC Easy UPS BVX Series BVX900LI - UPS - 480 Watt - 900 VA
- AC 220-240 V
- 480 Watt
- 900 VA
- 9 Ah
- Output connectors: 4
£
98.99
inc.
vat
£ 82.49 ex.
vat
APC SRV72RLBP-9A - Easy UPS ONLINE SRV RM 72V Battery Pack for 2/3 kVA Ext. Runtime Model
- Lead Acid
- Maintenance-free/Sealed/Leak Proof
- High quality, Double-conversion On-line UPS
£
633.99
inc.
vat
£ 528.32 ex.
vat
Open Box APC Smart-UPS C SMC1500I-2UC 900 Watt / 1500 VA with APC SmartConnect
- Input Voltage: AC 220/230/240 V
- Power Capacity: 900 Watt / 1500 VA
- Input Connectors: 1 x power IEC 60320 C14
- Output connectors: 4 x power IEC 60320 C13 ¦ 2 x IEC jumper
£
652.86
inc.
vat
£ 544.05 ex.
vat
UPS Network Management Card 3 with PowerChute Network Shutdown & Environmental Monitoring
- AP9641
- UPS Network Management Card 3 with PowerChute Network Shutdown &...
£
627.99
inc.
vat
£ 523.32 ex.
vat
APC BR1600MI UPS 960 Watt 1600 VA
- Output power capacity: 960 Watt / 1600 VA
- Output Connections: 6 x IEC 320 C13 (Battery Backup)
- Input Connections: IEC 60320 C14
£
382.08
inc.
vat
£ 318.40 ex.
vat
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
£
518.99
inc.
vat
£ 432.49 ex.
vat
Eaton 9PX - 9PXEBM 72V RT2U - UPS Battery
- UPS battery
- 2U
[email protected]
APC Switched Rack PDU AP7920B
- AC 200/208/230 V
- 2300 VA
- Ethernet
- Input: IEC 60320 C14
- Output connectors: 8 (IEC 60320 C13)
£
767.99
inc.
vat
£ 639.99 ex.
vat
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
SKU: BE850G2-UK
£
97.98
inc.
vat
£ 81.65 ex.
vat
APC Back-UPS BX950MI UPS 520 Watt 950VA
- UPS
- AC 230 V
- 520 Watt
- 950 VA
- Output connectors: 6
SKU: BX950MI
£
84.99
inc.
vat
£ 70.82 ex.
vat
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
SKU: BE650G2-UK
£
90.99
inc.
vat
£ 75.82 ex.
vat
APC BR900MI UPS 540 Watt 900 VA
- Power Capacity: 540 Watt / 900 VA
- Output connectors: 6 x power IEC 60320 C13
SKU: BR900MI
£
222.72
inc.
vat
£ 185.60 ex.
vat
APC RBC17 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Battery Cartridge
- Internal
- Lead Acid
SKU: RBC17
£
62.00
inc.
vat
£ 51.66 ex.
vat
APC APCRBC113 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Lead Acid
- attery Form Factor: Internal
SKU: APCRBC113
£
62.87
inc.
vat
£ 52.39 ex.
vat
APC Replacement Battery Cartridge #106
- For UPS advice email [email protected]
- Hot-swappable batteries
- Plug-and-Play installation
SKU: APCRBC106
£
55.06
inc.
vat
£ 45.88 ex.
vat
APC RBC48 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Replacement UPS Battery
- Lead Acid
SKU: RBC48
£
147.50
inc.
vat
£ 122.91 ex.
vat
APC SMC1000IC UPS 600 Watt 1000 VA
- Power Capacity: 600 Watt / 1000 VA
- Output connectors: 8 x power IEC 60320 C13
- Input Connectors: 1 x power IEC 60320 C20
SKU: SMC1000IC
£
445.98
inc.
vat
£ 371.65 ex.
vat
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
SKU: SMT1000RMI2UC
£
813.47
inc.
vat
£ 677.89 ex.
vat
APC BX1600MI UPS 900 Watt 1600 VA
- Output power capacity: 900 Watt / 1600 VA
- Output Connections: 6 x IEC 320 C13 (Battery Backup)
- Input Connections: 1 x power IEC 60320 C14
SKU: BX1600MI
£
147.99
inc.
vat
£ 123.32 ex.
vat
APC RBC18 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Battery Cartridge
- 1 x Lead Acid
SKU: RBC18
£
195.02
inc.
vat
£ 162.51 ex.
vat
Eaton 3S550B UPS 330 Watt 550 VA
- Power Capacity: 330 Watt / 550 VA
- Output connectors: 3 x power BS (surge), 3 x power BS (UPS and surge)...
SKU: 3S550B
£
87.00
inc.
vat
£ 72.50 ex.
vat
Eaton 5P1550IBS UPS 1100 Watt 1550 VA
- Power Capacity: 1100 Watt / 1550 VA
- Output connectors: 8 x power IEC 60320 C13
- Input Connectors: 1 x power IEC 60320 C14
SKU: 5P1550IBS
£
651.99
inc.
vat
£ 543.32 ex.
vat
APC RBC7 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Replacement UPS Battery
- Lead Acid
SKU: RBC7
£
278.97
inc.
vat
£ 232.47 ex.
vat
EXDISPLAY APC RBC18 Replacement Battery Cartridge
- For UPS advice email [email protected]
- Battery Cartridge
- 1 x Lead Acid
SKU: EBR1-RBC18
£
155.99
inc.
vat
£ 129.99 ex.
vat
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
SKU: BX750MI
£
66.99
inc.
vat
£ 55.82 ex.
vat
APC Easy UPS BVX Series BVX900LI - UPS - 480 Watt - 900 VA
- AC 220-240 V
- 480 Watt
- 900 VA
- 9 Ah
- Output connectors: 4
SKU: BVX900LI
£
98.99
inc.
vat
£ 82.49 ex.
vat
APC SRV72RLBP-9A - Easy UPS ONLINE SRV RM 72V Battery Pack for 2/3 kVA Ext. Runtime Model
- Lead Acid
- Maintenance-free/Sealed/Leak Proof
- High quality, Double-conversion On-line UPS
SKU: SRV72RLBP-9A
£
633.99
inc.
vat
£ 528.32 ex.
vat
Open Box APC Smart-UPS C SMC1500I-2UC 900 Watt / 1500 VA with APC SmartConnect
- Input Voltage: AC 220/230/240 V
- Power Capacity: 900 Watt / 1500 VA
- Input Connectors: 1 x power IEC 60320 C14
- Output connectors: 4 x power IEC 60320 C13 ¦ 2 x IEC jumper
SKU: EBR1-SMC1500I-2UC
£
652.86
inc.
vat
£ 544.05 ex.
vat
UPS Network Management Card 3 with PowerChute Network Shutdown & Environmental Monitoring
- AP9641
- UPS Network Management Card 3 with PowerChute Network Shutdown &...
SKU: AP9641
£
627.99
inc.
vat
£ 523.32 ex.
vat
APC BR1600MI UPS 960 Watt 1600 VA
- Output power capacity: 960 Watt / 1600 VA
- Output Connections: 6 x IEC 320 C13 (Battery Backup)
- Input Connections: IEC 60320 C14
SKU: BR1600MI
£
382.08
inc.
vat
£ 318.40 ex.
vat
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
SKU: SMT1000IC
£
518.99
inc.
vat
£ 432.49 ex.
vat
APC Switched Rack PDU AP7920B
- AC 200/208/230 V
- 2300 VA
- Ethernet
- Input: IEC 60320 C14
- Output connectors: 8 (IEC 60320 C13)
SKU: AP7920B
£
767.99
inc.
vat
£ 639.99 ex.
vat
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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.