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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 32090 1500036357
Riello Vision Rack 1.1kVA Line Interactive 230V (UPS)
£326.89 £326.89
in stock
details >
Critical Power Supplies - Product box 35213 1500036357
Riello Vision Dual 3kVA Line Interactive 230V (UPS)
£511.06 £511.06
in stock
details >
Critical Power Supplies - Product box 35213 1500036357
Riello Vision Dual 1.5kVA Line Interactive 230V (UPS)
£325.36 £325.36
in stock
details >
Critical Power Supplies - Product box 35213 1500036357
Riello Vision Dual 1.1kVA Line Interactive 230V (UPS)
£303.09 £303.09
in stock
details >
Critical Power Supplies - Product box 35213 1500036357
Riello Vision Dual 2.2kVA Line Interactive 230V (UPS)
£459.46 £459.46
in stock
details >
Critical Power Supplies - Product box 687141 1548682980
Riello Sentinel Dual 3kVA Online 230V with No Internal Batteries (UPS)
£641.26 £641.26
in stock
details >
Critical Power Supplies - Product box 1159826 1569591928
Riello Sentryum ACT 20kVA Online 230V (UPS) (No Internal Batteries)
£8,012.10 £8,012.10
in stock
details >
Critical Power Supplies - Product box 1159826 1569591928
Riello Sentryum ACT 10kVA Online 230V (UPS) (No Internal Batteries)
£7,062.80 £7,062.80
in stock
details >
Critical Power Supplies - Product box 2065741 1630830725
Vertiv Liebert GXT5 3kVA Online 230V (UPS)
£1,473.01 £1,473.01
in stock
details >
Critical Power Supplies - Product box 2056356 1630485226
Tripp lite smartonline 208/240, 230v 6kva 5.4kw double-conversion ups, 4u rack/tower, extended run, network card options, usb, db9 serial, bypass switch, c19
£2,021.66 £2,021.66
in stock
details >
Critical Power Supplies - Product box 1159626 1569573028
Riello Sentryum CPT 15kVA Online 230V (UPS) (No Internal Batteries)
£7,327.46 £7,327.46
in stock
details >
Critical Power Supplies - Product box 2065721 1630830723
Vertiv Liebert GXT5 1kVA Online 230V (UPS)
£624.31 £624.31
in stock
details >
Critical Power Supplies - Product box 1723316 1608110673
Vertiv Liebert GXT5 6kVA Online 230V (UPS)
£2,595.78 £2,595.78
in stock
details >
Critical Power Supplies - Product box 2064751 1630739555
Vertiv Liebert GXT5 8kVA Online 230V (UPS)
£3,364.99 £3,364.99
in stock
details >
Critical Power Supplies - Product box 1159846 1569594866
Riello Sentryum XTD 10kVA Online 230V (UPS) (No Internal Batteries)
£2,857.90 £2,857.90
in stock
details >
Critical Power Supplies - Product box 1159846 1569594866
Riello Sentryum XTD 20kVA Online 230V (UPS) (No Internal Batteries)
£3,287.20 £3,287.20
in stock
details >
Critical Power Supplies - Product box 1159826 1569591928
Riello Sentryum ACT 15kVA Online 230V (UPS) (No Internal Batteries)
£7,710.88 £7,710.88
in stock
details >
Critical Power Supplies - Product box 31915 1500036357
APC Smart-UPS SRT 10000VA 230V
£8,171.97 £8,171.97
in stock
details >