Voltage monitoring relays can monitor from millivolts to several hundred volts both DC and AC single phase. Depending upon model it is possible to monitor under-voltage and / or over-voltage. Low DC voltage version can be usefully employed to monitor batteries in backup systems nowadays so popular. Single phase AC are particularly indicated to verify that a specific device has been plugged to the correct mains when the machine is used tin countries with different values or with significant fluctuations.
Series Description
DUA01 Carlo Gavazzi - Voltage Monitor Relay - DUA01
  • AC/DC 1-Ph Overvoltage.
  • From 0.4V to 500V.
  • Adjustable hysteresis
  • Programmable latching
  • SPDT relay output
PUA01 Carlo Gavazzi - Voltage Monitor Relay - PUA01
  • AC/DC 1-Ph Overvoltage.
  • From 0.4V to 500V.
  • Adjustable hysteresis
  • Programmable latching
  • SPDT relay output
  • Plug-In terminals
DUA52 Carlo Gavazzi - Voltage Monitor Relay - DUA52
  • DC 1-Ph Undervoltage
  • From 8 to 58VDC.
  • Adjustable voltage and hysteresis
  • SPDT relay output.
DUA55 Carlo Gavazzi - Voltage Monitor Relay - DUA55
  • AC 1-Ph
  • From 208 to 480 VAC
  • +/-10% or +/-15% tolerance monitoring.
  • Self powered
  • SPDT relay output.
DUB71 Carlo Gavazzi - Voltage Monitor Relay - DUB71
  • 0.1 to 500V DC/AC 1-Ph
  • Over or under voltage
  • Adjustable hysteresis and delay
  • Programmable latching or inhibit.
  • SPDT relay output
DUB01 Carlo Gavazzi - Voltage Monitor Relay - DUB01
  • 0.1 to 500V DC.AC 1-Ph
  • Over or under voltage
  • Adjustable hysteresis and delay
  • SPDT relay output
PUB01 Carlo Gavazzi - Voltage Monitor Relay - PUB01
  • 0.1 to 500V DC.AC 1-Ph
  • Over or under voltage
  • Adjustable hysteresis and delay
  • SPDT relay output
  • Plug-In terminals
DUB02 Carlo Gavazzi - Voltage Monitor Relay - DUB02
  • 24, 115 or 230V AC selectable
  • Adjustable over or under voltage
  • Adjustable delay
  • Programmable latch or inhibit
  • SPDT relay output
PUB02 Carlo Gavazzi - Voltage Monitor Relay - PUB02
  • 24, 115 or 230V AC selectable
  • Adjustable over or under voltage
  • Adjustable delay
  • Programmable latch or inhibit
  • SPDT relay output
  • Plug-In terminals
DUB03 Carlo Gavazzi - Voltage Monitor Relay - DUB03
  • 24, 115 or 230V AC selectable
  • Adjustable over or under voltage
  • Adjustable delay and hysteresis.
  • Programmable latch or inhibit
  • SPDT relay output
PUB03 Carlo Gavazzi - Voltage Monitor Relay - PUB03
  • 24, 115 or 230V AC selectable
  • Adjustable over or under voltage
  • Adjustable delay and hysteresis.
  • Programmable latch or inhibit
  • SPDT relay output
  • Plug-In terminals
DUC01 Carlo Gavazzi - Voltage Monitor Relay - DUC01
  • 2 to 500V DC/AC 1-Ph
  • Over and under voltage
  • 2 Voltage and delay setpoints
  • Adjustable hysteresis
  • 2 SPDT relay outputs
PUC01 Carlo Gavazzi - Voltage Monitor Relay - PUC01
  • 2 to 500V DC/AC 1-Ph
  • Over and under voltage
  • 2 Voltage and delay setpoints
  • Adjustable hysteresis
  • 2 SPDT relay outputs
  • Plug-In terminals