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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.

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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.

Single Phase UPS Systems

Here at Critical Power Supplies, we have an exceptional range of single phase UPS systems available to purchase online. The technology used to generate and distribute electricity in many countries around the world produces either a three-phase or single-phase supply.

As it moves closer to the point of use, local substations reduce the electricity voltage and add a neutral and earth reference. The substation supplies a single-phase, 230V supply (made up of a single-phase and neutral) to energy consumers (businesses or consumer customers) in its vicinity, or a three-phase supply to larger energy consumers.

The supply coming into an industrial estate, factory, office block or other large building will be a three-phase, 400V 50Hz supply. It is then converted to a single-phase supply by the distribution network within the building so that wall sockets will have a voltage of 230V at 50Hz. This provides a maximum current typically: 10, 13, 16, or 20 Amps.

UPS are designed to work on either a single or three-phase supply, but not both. The difference between them is really to do with how they handle the electricity supply, their switching mechanisms and size of output they are designed to enable.

At Critical Power Projects, we supply a number of desktops, floor standing, or rack-mounted, single phase UPS and single-phase UPS systems up to 3kVA from leading manufacturers across the globe. We employ a team of qualified and experienced UPS experts, fully conversant with the full gamut of requirements of power protection by all sectors of business and industry. We also understand which single-phase UPS will be best for your requirements, and as we are manufacturer-independent, we are free to supply a solution that best meets your needs. If it’s just the product you want, we can ship it to you quickly (from stock or on special order). For additional power security, some single-phase UPS (and those rated above 3kVA) can be hard-wired, in which case we can provide expert installation and project management.

We also provide battery extension packs to increase battery run time, plus bypasses, remote monitoring, power management and power monitoring solutions.

For advice on 1 phase UPS, or if you would like to know more about single phase UPS systems and the range of power protection products and services we supply, or if you would like us to arrange a site survey or quotation, please call: 0808 503 8777, fill in our contacts form or send us an email with your details and we’ll call you.

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Critical Power Supplies - Product box 683186 1548247391
Riello iPlug 800VA Offline 230V (UPS)
£78.82 £78.82
in stock
details >
Critical Power Supplies - Product box 1024641 1562162891
Riello iDialog 800VA Offline 230V (UPS)
£74.77 £74.77
in stock
details >
Best Seller
Critical Power Supplies - Product box 681361 1548067446
Riello iPlug 600VA Offline 230V (UPS)
£72.24 £72.24
in stock
details >
Critical Power Supplies - Product box 1364556 1583750113
CyberPower BricLCD 700VA Line Interactive 230V (UPS) (UK)
£83.28 £83.28
in stock
details >
Critical Power Supplies - Product box 32964 1500036357
Riello Vision Tower 800VA Line Interactive 230V (UPS)
£204.37 £204.37
in stock
details >
Critical Power Supplies - Product box 34498 1570456443
Riello Sentinel Pro 2.2kVA Online 230V with No Internal Batteries (UPS)
£465.60 £465.60
in stock
details >
Critical Power Supplies - Product box 1025001 1562165353
Riello iDialog 400VA Offline 230V (UPS)
£65.66 £65.66
in stock
details >
Critical Power Supplies - Product box 1804531 1613560375
APC Smart-UPS 1500VA, Tower, LCD 230V with SmartConnect Port
£563.87 £563.87
in stock
details >
Critical Power Supplies - Product box 1025031 1562165755
Riello iDialog 600VA Offline 230V (UPS)
£66.67 £66.67
in stock
details >
Critical Power Supplies - Product box 32964 1500036357
Riello Vision Tower 1.1kVA Line Interactive 230V (UPS)
£242.84 £242.84
in stock
details >
Critical Power Supplies - Product box 1804526 1613560370
APC Smart-UPS 1000VA, Tower, LCD 230V with SmartConnect Port
£481.08 £481.08
in stock
details >
Critical Power Supplies - Product box 1724311 1608110748
APC Smart-UPS 1000VA, Tower, LCD 230V with SmartConnect Port
£417.98 £417.98
in stock
details >
Critical Power Supplies - Product box 1024961 1562164525
Riello iDialog 1.2kVA Offline 230V (UPS)
£107.68 £107.68
in stock
details >
Critical Power Supplies - Product box 1945556 1624875914
APC Smart-UPS 3000VA LCD RM 2U 230V with Network Card
£1,823.48 £1,823.48
in stock
details >
Critical Power Supplies - Product box 1364571 1583750119
CyberPower BricLCD 1kVA Line Interactive 230V (UPS)
£103.86 £103.86
in stock
details >
Critical Power Supplies - Product box 1725611 1608110855
APC Smart-UPS SRT 3000VA RM 230V
£2,204.89 £2,204.89
in stock
details >
Critical Power Supplies - Product box 2014456 1627919642
CyberPower PFC Sinewave 1.5kVA Line Interactive 230V (UPS)
£233.41 £233.41
in stock
details >
Best Seller
Critical Power Supplies - Product box 1024991 1562165280
Riello iDialog 1.6kVA Offline 230V (UPS)
£137.04 £137.04
in stock
details >