Master HE series is available from 100 to 800 kVA. The UPS feature a new on-line double-conversion technology utilising IGBT and DSP (Digital Signal Processor) control to provide maximum protection, power quality and green energy for any type of application including primary datacenters, disaster recover sites, telecoms rooms, industrial processes and security applications.

High efficiency stands for higher active power available if compared with legacy UPS thanks to output unitary p.f. Nominal power is granted with no downgrading independently from operating temperature.

Advanced supervision

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

Battery care system
Master HE 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 two 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.

SERIES TABLE

MODEL NOMINAL POWER (kVA) ACTIVE POWER (kW) NOMINAL VOLTAGE
MHE 100 100 100 380 – 400 – 415 Vac three-phase
MHE 120 120 120 380 – 400 – 415 Vac three-phase
MHE 160 160 160 380 – 400 – 415 Vac three-phase
MHE 200 200 200 380 – 400 – 415 Vac three-phase
MHE 250 250 250 380 – 400 – 415 Vac three-phase
MHE 300 300 300 380 – 400 – 415 Vac three-phase
MHE 400 400 400 380 – 400 – 415 Vac three-phase
MHE 500 500 500 380 – 400 – 415 Vac three-phase
MHE 600 600 600 380 – 400 – 415 Vac three-phase
MHE 800 800 800 380 – 400 – 415 Vac three-phase

SPECIFICATIONS

INPUT
Voltage 380 – 400 – 415 Vac three-phase
Soft start 0 – 100% in 120’’ (selectable)
Frequency 45 – 65 Hz
Frequency tolerance ± 2% (selectable from ± 1% to ± 5% from front panel)
Power factor at full load > 0.99
Current distorsion thdi ≤ 3%
BY PASS
Nominal Voltage 380 – 400 – 415 Vac three-phase + N
Nominal Frequency 50 or 60 Hz (selectable
OUTPUT
Number of phases 3 + N
Nominal voltage 380 – 400 – 415 Vac three-phase + N (selectable)
Frequency 50 Hz / 60 Hz
Static stability ± 1%
Voltage distortion < 1% with linear load / < 3% with non-linear load
Overload 110% for 60’; 125% for 10’; 150% for 1’
BATTERIES
Ripple current Zero
Type VRLA AGM/GEL
Recharge voltage
compensation
 -0,5 Vx°C

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