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Critical Power Supplies - Maintaining a rack

Do you need help installing?
We can help you.

We provide a range of on-site services whether your project is for a single UPS and Generator or remote monitoring across multiple sites.

Critical Power Supplies - Project Planning

Get a head start with our FREE
Project Management Consultation.

Why not use our project management services to help you have a smooth and pain free project.

Critical Power Supplies - Datacentre Banner

Trade-In your UPS with us

Trade-in your old UPS for a same or higher spec model*

Critical Power Supplies - Maintaining a rack

Do you need help installing?
We can help you.

We provide a range of on-site services whether your project is for a single UPS and Generator or remote monitoring across multiple sites.

Critical Power Supplies - Project Management and Planning

Get a head start with our FREE
Project Management Consultation.

Why not use our project management services to help you have a smooth and pain free project.

Critical Power Supplies - Datacentre Banner

Trade-In your UPS with us

Trade-in your old UPS for a same or higher spec model*

*Terms and conditions apply.

Uninterruptible Power Supplies

Uninterruptible Power Supplies or UPS is our speciality here at Critical Power Supplies. With a wide range of UPS systems for all types of applications from home and domestic use up to heavy industry and medical uses, you are sure to find the UPS power supply that you require. Do you need a rack mount solution for your servers or UPS battery backup? For whatever your needs are we can provide you with an uninterruptible power supply.

In our collection you will find all of the uninterruptible power supplies that you require from line interactive UPS to online UPS systems. We also stock an extensive selection of UPS battery replacements and 3 phase UPS systems.

You will find leading manufacturers in our collection including APC, Eaton and Riello, so you can expect nothing less than outstanding performance with our products. We only have suppliers who meet our supply chain standards for quality (ISO 9001), health and safety (ISO 18001), and environmental management (ISO 14001). Browse our uninterruptible power supplies in full below or contact us today if you have any questions regarding our range.

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Critical Power Supplies - Product box 1025031 1562165755
Riello iDialog 600VA Offline 230V (UPS)
£61.61 £61.61
in stock
details >
Critical Power Supplies - Product box 1024641 1562162891
Riello iDialog 800VA Offline 230V (UPS)
£69.20 £69.20
in stock
details >
Best Seller
Critical Power Supplies - Product box 681361 1548067446
Riello iPlug 600VA Offline 230V (UPS)
£66.68 £66.68
in stock
details >
Best Performance
Critical Power Supplies - Product box 1856036 1616145433
APC Back-UPS 1.4kVA Line Interactive 230V (UPS)
£120.56 £120.56
in stock
details >
Critical Power Supplies - Product box 1025001 1562165353
Riello iDialog 400VA Offline 230V (UPS)
£60.60 £60.60
in stock
details >
Critical Power Supplies - Product box 1727496 1608110998
APC Back-UPS 700VA Line Interactive 230V (UPS)
£69.99 £69.99
in stock
details >
Critical Power Supplies - Product box 35213 1500036357
Riello Vision Dual 3kVA Line Interactive 230V (UPS)
£472.09 £472.09
in stock
details >
Great Value
Critical Power Supplies - Product box 34827 1500036357
APC Back-UPS 400VA Offline 230V (UPS)
£79.40 £79.40
in stock
details >
Critical Power Supplies - Product box 35280 1500036357
APC Back-UPS 500VA Line Interactive 230V (UPS)
£55.51 £55.51
in stock
details >
Critical Power Supplies - Product box 1724311 1608110748
APC Smart-UPS 1kVA Line Interactive 230V with SmartConnect (UPS)
£416.90 £416.90
in stock
details >
Critical Power Supplies - Product box 1804521 1613560369
APC Smart-UPS 1.5kVA Line Interactive 230V with SmartConnect (UPS)
£475.67 £475.67
in stock
details >
Critical Power Supplies - Product box 1364581 1583750124
CyberPower BricLCD 1.2kVA Line Interactive 230V (UPS)
£128.08 £128.08
in stock
details >
Critical Power Supplies - Product box 1804526 1613560370
APC Smart-UPS C 1kVA Line Interactive 230V with SmartConnect (UPS)
£359.11 £359.11
in stock
details >
Critical Power Supplies - Product box 32837 1500036357
APC Smart-UPS X 750VA Line Interactive 230V (UPS)
£464.91 £464.91
in stock
details >
Best Performance
Critical Power Supplies - Product box 1722766 1608110642
APC Back-UPS 850VA, 230V, USB Type-C and A charging ports (UPS)
£98.54 £98.54
in stock
details >
Critical Power Supplies - Product box 1726196 1608110895
APC Smart-UPS 1.5kVA Line Interactive 230V with Network Card (UPS) (2U)
£958.50 £958.50
in stock
details >
Critical Power Supplies - Product box 31639 1500036357
APC Smart-UPS 1.5kVA Line Interactive 230V (UPS) (1U)
£772.42 £772.42
in stock
details >
Critical Power Supplies - Product box 1725341 1608110823
APC Smart-UPS 3kVA Line Interactive 230V with SmartConnect (UPS) (2U)
£1,563.77 £1,563.77
in stock
details >