Small Single Phase UPS
Compact power protection for standalone devices and low power applications.
Small single phase (230V) uninterruptible power supplies are by far the most commonly deployed type of UPS system in the market, with millions sold every year.
Starting from 350VA for low power one-to-one battery backup, up to 20kVA providing UPS power protection and backup power for small comms rooms or critical laboratory equipment, there is a vast number of applications that a small UPS can be suitable for.
In the single phase UPS market there are 3 different types of uninterruptible power supply technologies. Off Line UPS and Line Interactive UPS (often referred to as standby UPS), and On-Line UPS. The difference is defined by how the power moves through the UPS device and the level of power protection and power quality they provide.
Off-Line UPS
The most cost-effective choice for applications primarily looking for a short amount of battery backup. Off–line UPS technology will protect from most power spikes by clamping down on excess voltage and help ride out more than 90% of all outages. An offline UPS system passes utility AC power straight through the unit, past a transfer switch, to the output point where the protected load is connected.
When an input power failure happens, the built-in battery and the inverter, which converts the battery’s DC power to AC, are activated and connected to the output by the transfer switch. There is generally about a 6-8 millisecond break in power when transferring to battery back-up which is fast enough for most connected devices to remain unaffected.
This technology is best suited for devices under 1500VA such as small offices, personal home computers and other less critical applications.
Models Available: Schneider Electric APC Back UPS, APC Back UPS Pro, Riello iPlug, Riello iDialog, Riello Netpower and Vertiv Liebert PSP
Line Interactive UPS
Probably the most commonly sold type of UPS in the market, Line-interactive UPS systems provide both power conditioning and battery backup and are a good choice for reasonable protection and moderate costs.
Line Interactive technology is particularly effective in applications and areas where outages are rare, but power fluctuations are common. Line-interactive UPS systems support a wide range of input voltage fluctuations before switching to battery backup.
Beyond battery backup, line-interactive UPS provides far better control over power fluctuations than offline UPS systems. Line-interactive UPS technology provides power conditioning with a 4-6 millisecond break in power when transferring to battery back-up and protects against the most common power problems experienced in a network.
Models available: Schneider Electric APC Smart UPS, APC Easy UPS, Riello Vision and Vision Dual, Eaton 5SX and 5PX, Vertiv Liebert PSA, Edge, Edge Lithium and ITon.
On-Line UPS
On-line or on-Line double conversion UPS technology offers the highest level of power protection possible.
When first generated, mains power is stable and clean. But during transmission and distribution, it is subject to many different events that cause voltage sags, spikes and complete failure that can interrupt operations, cause data loss and damage equipment.
When it comes to safeguarding critical IT loads, such as servers, networks and medical equipment, only online double conversion technology protects fully against all these power problems.
An online UPS delivers continuous, high-quality AC power to equipment with no break when transferring to battery, protecting equipment from virtually all power disturbances due to blackouts, brownouts, sags, surges or noise interference. A true online, double-conversion UPS provides 100% power conditioning, zero transfer time to battery, no change in output voltage and better transient suppression than line-interactive units.
Models available: Schneider Electric APC Smart UPS SRT On-Line, APC Smart UPS BR, APC Smart UPS Ultra and APC Easy UPS On-Line, Riello Sentinel, Riello Sentinel Pro, Vertiv Liebert GXT5, Eaton 9SX and Eaton 9PX
With so many different options to choose from, deciding which type of UPS is right for your application can be tricky.
For a free consultation or to find out more about our single phase UPS range contact one of our team today!
Call: 01252 692559 or email: info@sourceups.co.uk
We have 9 UK data centres and Source UPS are our preferred supplier for infrastructure. Their advice is always valuable and well considered. I would strongly recommend Source UPS.
