Online Uninterruptible Power Supplies (3/1)

Boz Altınay Construction Industry Inc.

What is an Online UPS (3/1)? Three-Phase Input – Single-Phase Output Power Solution

Power outages, voltage fluctuations, and grid-related disturbances pose significant risks for businesses.  Online UPS (3/1) systems offer a reliable solution, especially in environments where sensitive equipment and critical applications  need to operate without interruption   . These UPS models, which draw power from the three-phase grid and provide single-phase output, stand out with both their  high input capacity  and  single-phase output flexibility  .

What is Online UPS (3/1)?

An online UPS (3/1) is an uninterruptible power supply that takes three-phase input voltage and provides single-phase output.  Thanks to its double conversion technology,  it converts the input electrical energy first to DC and then back to AC, producing completely clean and stable power.

  • Input:  3 Phase (3Ph+N+PE)

  • Output:  1 Phase (1Ph+N+PE)

  • Technology:  Online, double conversion

  • Transfer Time:  0 ms

This configuration is preferred, especially in areas where a three-phase network is used but the devices operate on a single phase.

Online UPS (3/1) Features

  • Double Conversion Technology:  Provides completely clean and stable power.

  • 0ms Transfer Time:  Even during interruptions, there is no downtime on the devices.

  • Pure Sine Wave Output:  Produces high-quality energy compatible with sensitive devices.

  • High Input Capacity:  Supports higher loads with the power it receives from the three-phase network.

  • Generator Compatibility:  Can operate with generator support during prolonged power outages.

  • Smart Communication:  Remote monitoring is possible via communication options such as RS232, USB, and SNMP cards.

Online UPS (3/1) Application Areas

  • Small and Medium-Sized Enterprises:  Offices, retail stores

  • Healthcare Sector:  Clinics, laboratory equipment

  • Industrial Applications:  Single-phase testing equipment, measurement systems.

  • IT Infrastructure:  Servers, security systems, network equipment

  • Educational and Public Institutions:  Projection systems, communication devices

Advantages of Online UPS (3/1)

Guaranteed uninterrupted power for critical equipment;
true uninterrupted operation with 0ms transfer time;
three-phase input – single-phase output flexibility;
maximum equipment protection with pure sine wave output;
generator compatible use.

The Difference Between Line Interactive and Online UPS

  • Line Interactive UPS:  Offers more economical solutions and is suitable for short-term outages.

  • Online UPS (3/1): Offers professional solutions  with double-conversion technology and high input capacity   .

Online UPS (3/1)  systems, with their structure that provides single-phase output by drawing power from a three-phase input, are a reliable solution especially for businesses and critical applications. They guarantee power continuity in both small and medium-sized institutions.

Frequently Asked Questions (FAQ)

1. What is an Online UPS (3/1)?
It is an uninterruptible power supply that converts energy received from a three-phase input to a single-phase output, operating with double conversion technology.

2. In which devices is it used?
In servers, security systems, laboratory equipment, and single-phase industrial devices.

3. What is the difference between Online UPS (3/1) and Line Interactive UPS?
Online UPS is a more advanced solution with zero transfer time and pure sine wave output.

4. Is there a transfer time?
No, it provides completely uninterrupted power with a 0ms transfer time.

5. Does it work with a generator?
Yes, it works compatibly with generator support during prolonged power outages.