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Master HP (100 – 600 kVA)

Master HP (100 – 600 kVA)

On Line UPS

The Master HP series from 100 to 600 KVA is the Riello UPS solution for installations requiring high energy efficiency and maximum power availability. Master HP Series provides maximum protection and power quality for data centres and industrial loads. The UPS has an IGBT-based rectifier, DSP (Digital Signal Processors) technology and provides true On-line, double conversion power protection, (VFI SS 11 – Voltage and Frequency Independent in accordance with IEC EN 62040-3).


Technical Specifications

Product Brochure

Main features:

Maximised cost savings
The Master HP has the ability to monitor the mains input quality and to select the best operating mode based on the interference present (Smart Active mode) or circular redundancy (Parallel Energy Saving mode, which allows the UPS to regulate available capacity based on the immediate demands of the load, automatically switching to standby in the event of excess capacity), the Master HP also offers high levels of efficiency for partial loads, resulting in reduced operating costs.


  • High efficiency (up to 98,5%)
  • Compact size: e.g.: only 0,85 m2 for the Master HP 250 KVA
  • Reduced weight
  • Double load protection, both electronic and galvanic, towards the battery.

The entire Master HP range is suitable for use in a wide range of applications. Thanks to the flexibility of configuration, available options and accessories, it is suitable for supplying any type of load, e.g. capacitive loads such as blade servers etc.
Power supply reliability and availability are ensured for critical applications by distributed or centralised parallel configurations of up to 8 units, for redundant (N+1) or power parallel configurations and all the different configurations offered by the Master MPS range.

Zero impact source
Master HP has a zero impact on connected power sources – grid networks or generators:

  • < 3% input current distortion
  • Input power factor 0,99
  • power walk-in function – to ensure a progressive rectifier start-up
  • start-up delay function – to restart the rectifier when the mains power supply is restored.

Battery care system
Master HP series UPS include a range of features designed to prolong battery life and reduce their usage.

Output isolation transformer

  • Better load protection from DC/Battery problems
  • The UPS can be supplied from 2 independent lines
  • Fault on DC bus will not affect the by-pass availability
  • High Short circuit current
  • Higher immunity to harmonics or energy backfeed generated by the load.

Advanced supervision
Master HP series UPS have a front panel mounted graphic display providing UPS information, measurements, status updates and alarms in different languages, with wave form displays including voltage/current and providing a KWh reading that can be used to measure IT loads and calculate a datacentre PUE (power usage effectiveness) ratio.

Smart Grid Ready
Being smart grid ready, Master HP allows for the implementation of power accumulation solutions, and at the same time ensures extremely high levels of efficiency. It is also able to independently select the most efficient operating method based on the status of the grid. Master HP UPS are also able to electronically interface with the energy manager using the smart grid communication network.

MODELSΜΗΤ 100ΜΗΤ 120ΜΗΤ 160MHT 200ΜΗΤ 250ΜΗΤ 300MΗΤ 400MΗΤ 500MΗΤ 600


Nominal voltage380 – 400 – 415 VAC three-phase
Frequency45 – 65 Hz
Power factor> 0,99
Harmonic current distortion<3% THDi
Soft start0 – 100% in 120’’ (selectable)
Frequency tolerance± 2% (selectable from ± 1% to ± 5% from front panel)
Standard equipment providedBack Feed protection; separable bypass line


Nominal voltage360 – 400 – 420 VAC 3-phase + N
Nominal frequency50 or 60 Hz (selectable)


Nominal power (KVA)100120160200250300400500600
Active power (KW)90108144180225270360450540
Number of phases3 + N
Nominal voltage380 – 400 – 415 VAC three-phase + N (selectable)
Static stability± 1%
Dynamic stability± 5% in 10 ms
Voltage distortion< 1% with linear load / < 3% with non-linear load
Crest factor3:1 lpeak/lrms
Frequency stability on battery0,05%
Frequency50 or 60 Hz (selectable)
Overload110% for 60’; 125% for 10’; 150% for 1’


TypeVRLA AGM / GEL; NiCd; Li-ion;
Ripple currentZero
Recharge voltage
(-0,5) Vx°C


Weight (kg)65670080091010001400170021002400
Dimensions (WxDxH) (mm)800 x 850 x 19001000 x 850 x 19001500 x 1000 x 19002100 x 1000 x 1900
Remote signalsdry contacts (configurable)
Remote controls ESD and bypass (configurable)
Communications Double RS232 + dry contacts + 2 slots for communications interface
Operating temperature0 – 40 ° C
Relative humidity<90% non-condensing
ColourDark grey RAL 7016
Noise level at 1 m63 – 68 dBA70 – 72 dBA
IP ratingIP20
Smart Active efficiencyup to 98,5%
StandardsSafety: EN 62040-1-1 (Directive 2006/95/EC); EMC: EN 62040-2 (Directive 2004/108/EC)
Classification in accordance
with IEC 62040-3
(Voltage Frequency Independent) VFI – SS – 111
Moving the UPStranspallet

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