1-phase and 3-phase
Modular AC UPS 10-320 kVA

Modular AC Uninterruptible Power System UMB AC40 designed and developed to withstand harsh industrial environment and operating conditions of industrial applications with state-of-the-art technology providing, reliable and customized system solutions.

The modular design ensures very high reliability and a very low mean time to repair (MTTR) making the UMB AC40 UPS system with the highest possible availability.

  • No single point of failure.
  • UPS power range up to 320 kW.
  • Single cabinet up to 200 kW.
  • High efficiency in double conversion.
  • Single, N+1 and N+N configurations.
  • Hot Swappable Power Modules for very low MTTR.
  • Scalability for future power growth.
  • High power density.
  • Low Current Harmonics (THDi).
  • Proven microprocessor control.
  • Large LCD and LED display with mimic panel and history.
  • Wide selection of alarms, indications and measurements.
  • Communication ports and potential free contacts.
  • Advanced battery management.
  • Operates with Nickel-cadmium (vented / gas recombination) and Lead acid batteries (vented / gas recombination).
  • Other AC input voltages.
  • RS-232 / RS-485 / Ethernet Port / SNMP / WEB Interface.
  • Remote control software.

Tech Specs

UMB AC40: 1-phase and 3-phase modular AC UPS 10-320 kVA

1-phase output 3-phase output
UPS power (kW) 10 - 160 20 - 320
Nominal Power (kW) 10 (LV) 20 20 (LV) 40


Input voltage 380 / 400 / 415 Vac 3-phase with neutral -20%, +15%
Power factor 0,99
Input THDi <3%
Bypass input voltage 110 (LV) or 230 Vac 1-phase ±20% 208 (LV) or 400 Vac 3-phase ±20%


Nominal voltage 400 V
220 V and 720 V (available on request)
Battery technologies Maintenance-free Lead Acid or Ni-Cd.
Vented Lead Acid, Ni-Cd as optional


Nominal voltage 100 (LV) or 230 Vac 1-phase ±1% 208 (LV) or 400 Vac 3-phase ±1%
Frequency 50/60 Hz
Voltage regulation ±1% static; dynamic: IEC/EN 62040-3 Class1
Overload capacity Inverter: 125% for 10 min; 150% for 60 sec; 180% for 200 ms.
Bypass: 150% continuous, 1000% for 1 cycle
Harmonic Distortion THDv < 2% linear load; < 5% non-linear load


Dimensions Height is 2100 mm, width and depth vary with rating (see table below)
Ratings (kW) 60 100 160 120 200 320
WxD (mm) 800x1000 1600x1000 800x1000 1600x1000
Weight (Kg) 340 480 800 360 500 820
Cooling Forced ventilation
Colour RAL 7035
Protection degree (IEC 60529) IP 20 (optional up to IP54)
Efficiency (AC/AC*) Up to 94% depending on the model and voltage

*according to IEC EN 62040-3


Operating temperature 0°C to +40°C (derated up to 55°C)/ Storage: 10°C to +70°C
Altitude < 1000 m without power reduction, > 1000 m with reduction of 0.5% per 100 m
Audible noise at 1 meter (dBA) 57 to 65 (depending on power)

User Interface

Front panel Cabinet graphic display, mimic LED panel and keyboard, local EPO
Connectivity Included: RS232 card, USB; terminal block for battery breaker auxiliary contact.
Optional: input terminal block (remote emergency power off, external maintenance bypass circuit breaker aux. con.,
diesel mode aux. cont.);
SNMP adapter (Ethernet), Web interface (Ethernet), from ModBus-RTU to PROFIBUS DP adapter;
SPDT contact relay board; remote system monitoring panel; UPS managing and server shutdown software


Quality assurance, environment, health and safety ISO 9001:2008, ISO 14001:2004, BS OHSAS 18001:2007
Safety IEC EN 62040-1; EMC: IEC EN 62040-2
Environmental aspects IEC EN 62040-4
Test and performance IEC EN 62040-3 VFI-SS-111
Protection degree IEC 60529
Marking CE
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