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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 34871 1500036357
Eaton 5px 3,000VA 9mins runtime UPS
£1,148.16 £1,148.16
in stock
details >
Critical Power Supplies - Product box 34871 1500036357
Eaton 5px 1,500VA Netpack 9mins runtime UPS
£836.41 £836.41
in stock
details >
Critical Power Supplies - Product box 31611 1500036357
Eaton 5sc 750i 13minutes runtime
£191.96 £191.96
in stock
details >
Critical Power Supplies - Product box 193691 1500036357
Eaton 5sc 1500i rack2u uninterruptible power supply (ups) 1500 VA 8 ac outlet(s) line-interactive
£543.13 £543.13
in stock
details >
Critical Power Supplies - Product box 34871 1500036357
Eaton 5px 1,500VA 9mins runtime UPS
£671.14 £671.14
in stock
details >
Critical Power Supplies - Product box 31650 1500036357
Eaton 9SX 5kVA RT Rackmountable UPS (3 Minutes Runtime)
£2,084.67 £2,084.67
in stock
details >
Critical Power Supplies - Product box 31643 1500036357
Eaton 5p 650i 6mins runtime UPS
£221.61 £221.61
in stock
details >
Critical Power Supplies - Product box 31643 1500036357
Eaton 5p 1150i 7mins runtime UPS
£366.45 £366.45
in stock
details >
Critical Power Supplies - Product box 1726976 1608110967
Eaton 9px 1kVA uninterruptible power supply (ups) 1000 VA 8 ac outlet(s) double-conversion (online)
£776.83 £776.83
in stock
details >
Critical Power Supplies - Product box 1726266 1608110898
Eaton 9px3000irtn uninterruptible power supply (ups) 3000 VA 10 ac outlet(s)
£1,827.31 £1,827.31
in stock
details >
Critical Power Supplies - Product box 676491 1547815486
Eaton ellipse eco 650 IEC uninterruptible power supply (ups) 650 VA 400 w 4 ac outlet(s)
£88.88 £88.88
in stock
details >
Critical Power Supplies - Product box 31648 1500036357
Eaton 5p 850ir 7mins runtime UPS
£372.70 £372.70
in stock
details >
Critical Power Supplies - Product box 31648 1500036357
Eaton 5p 1150ir 7mins runtime UPS
£501.31 £501.31
in stock
details >
Critical Power Supplies - Product box 623216 1543398798
Eaton 5px uninterruptible power supply (ups) 3000 VA 7 ac outlet(s)
£1,098.71 £1,098.71
in stock
details >
Critical Power Supplies - Product box 34871 1500036357
Eaton 5px 2,200VA 8mins runtime UPS
£749.81 £749.81
in stock
details >
Critical Power Supplies - Product box 1726676 1608110956
Eaton 9px 1.5kVA uninterruptible power supply (ups) 9 ac outlet(s) double-conversion (online) 1500 VA 1500 w
£1,078.93 £1,078.93
in stock
details >
Critical Power Supplies - Product box 31611 1500036357
Eaton 5sc 1000i 13minutes runtime
£308.49 £308.49
in stock
details >
Critical Power Supplies - Product box 1726691 1608110956
Eaton 9px 1kVA uninterruptible power supply (ups) 1000 VA 8 ac outlet(s) double-conversion (online)
£952.13 £952.13
in stock
details >