UNITROL® 1020 automatic voltage regulator

Selected technical data

  • Configuration of digital inputs and outputs (12 inputs from which up to 8 can be configured as output)
  • Configuration of analog inputs and outputs (3 inputs, 2 outputs)
  • Configuration of digital inputs extension using free analog inputs (up to 6 additional digital inputs)
  • Display of measurements, alarms and limiters
  • Real time clock and SNTP synchronization with a time server

The easy to use commissioning and maintenance tool CMT 1000 for Microsoft Windows allows simple adjustment of parameters and easy optimization. It also offers monitoring, advanced trending and downloads of data- and event-logger registers.

Mechanical design
The smart mechanical design of UNITROL 1020 guarantees excellent performance and reliability also under harsh environmental conditions. UNITROL 1020 complies with the relevant CE, CSA, UL and DNV standards.

Are you looking for support or purchase information?


Excitation output

Continuous output at 55°C ambient temperature

up to 20 ADC

Auxiliary and power electronics supply Auxiliary power (excitation) 
AC input voltage 3-phase (min to max)
9 to 300 VAC 0 to 300 VAC

AC input voltage 1-phase (min to max)

50 to 300 VAC 0 to 300 VAC

DC input voltage (min to max)

18 to 300 VDC 0 to 300 VDC

Measurement inputs

Generator voltage 3-phase 
Max. 500 VAC
Generator current 1-phase 
1 AAC / 5 AAC

Internal voltage source


Auxiliary voltage source 

24 VDC

Maximum output current 

600 mA
Ambient values

Operating temperature range 
-40 to +70 °C
Storage temperature range   -40 to +85 °C
Communication ports

1 x RJ45, Ethernet 100Mbit/second
MODBUS and CMT1000
1 x Terminal block, RS-485
MODBUS and reactive load sharing
1 x USB type B connector
  • Contact us

    Submit your inquiry and we will contact you

    Contact us
Select region / language