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UPS Sizing

Use the UPS sizing table below to select the right UPS for your application. If you need advice or guidance please contact us or complete our enquiry form.

Product Range
Ph
kVA Range
0.5
1
2
4
5
10
20
40
80
100
200
400
800
iPlug
1
0.6-0.8
                      
iDialog
1
0.4-1.6
                    
Net Dialog
1
0.8-2.0
                    
Vision
1
0.8-2.0
                    
Dialog Vision (r)
1
0.5-3.0
                  
Sentinel Pro
1
0.7-3.0
                  
Sentinel Dual LP (r)
1
   1.0-3.0                  
Sentinel Dual HP (r)
1
      
3.3-10
              
Sentinel Dual HP (r)
3/1
        
6.5-10
              
Sentinel Power
1
        
5.0-10
              
Sentinel Power
3/1
        
6.5-10
              
Multi Sentry
1/1
          
10-20
            
Multi Sentry
3/1
          
10-20
            
Multi Sentry
3/3
          
10-120
      
Multi Dialog 3/3               60-80        
Multi Guard 3/3           15-120      
Master MPS
3/1
           10-100         
Master MPS 3/3           10-800      
Master HP 3/3                  
100-500
  
Master Industrial
3/1
              
30-80
        
Master FC400 3/3              
30-120
      

(r) denotes rack mount option

<500VA

Uninterruptible power supplies within this size range typically use either standby or line interactive technologies. Applications tend to be small desktop systems, terminals, workstations and network peripherals. UPS models include the iDialog and Dialog Vision.
View table

500VA - 1KVA

At this size range applications tend to be file servers and local area network specific. UPS models include the iDialog, Net Dialog and Dialog Vision. For extended runtimes above the standard (typically 5-10 minutes at full load) a larger UPS must be installed. This will provide a longer runtime for the lower than capacity load. The alternative is to size the UPS and select on with a battery extension pack capability such as the larger models within the Net Dialog and Vision ranges. On-line double conversion UPS in the form of the Sentinel Pro offer the facility for longer extended runtimes lasting up to seven or more hours without derating.
View table

1 - 4KVA

There are few line interactive UPS available above 1kVA. Riello UPS is  able to offer a range of alternative models including iDialog, Net Dialog and Dialog Vision. The Sentinel Pro and Sentinel Dual LP range runs to 3kVA and offers options for extended runtime autonomies and remote monitoring. Above this size the Sentinel Dual HP offers ideal power protection for data centres and server racks up to 10kVA.
View table

5 - 10KVA

Within this size range installations may require either a single phase or three phase input UPS. Sentinel Dual HP and the Sentinel Power offer both single and three phase inputs and a single phase output as well as a host of customisation options for extended runtime autonomies and remote monitoring.
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10 - 20KVA

The Sentinel Power  and Multi Sentry UPS offer solutions within this category with both single and three phase inputs and single or three phase outputs. The Multi Sentry UPS is also capable of parallel operation. The Multi Guard modular UPS is a scalable, three/ three phase with double-conversion Uninterruptible Power Supply. Its power capacity ranges from 15kVA to 120kVA.


View table

20 - 40KVA

For this category consider the Multi Sentry and Multi Dialog UPS. The Multi Sentry currently runs to 120kVA and the Multi Dialog to 80kVA. The Master Industrial offers an industrialised UPS option for process control environments from 30-80kVA.
View table

80 - 100KVA

Single UPS modules of the Multi Dialog are available up to 80kVA after which the UPS must be run in a parallel configuration to achieve higher power ratings. The Master MPS is available as a three phase input and output system. For a three phase input, single phase output system within this range consider the Master Industrial series which offers a 220Vdc bus. The Master FC400 series is a 400Hz frequency converter for aircraft and aviation applications.
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100 - 200KVA

The Master MPS is designed for data centre operation with 100kVA and 200kVA modules and offers a compact, highly resilient system. The Master HP series offers the benefits of a IGBT-based rectifier input to provide extremely low high input power factor and low total harmonic distortion.
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200 - 400KVA

The Master MPS is the optimum choice within this range with the Master HP IGBT-based rectifier model available. Consider running two systems in parallel to provide N+1 redundancy and a level of resilience. It is also common for these larger systems to be supported by a backup generator.
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400 - 800KVA

The mainstay of most data centre environments, the Master MPS provides an economic and efficient solution within this size range that can be scaled up through parallel operation to several MVA.
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