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DI and DU Series Current and Voltage Monitoring Relays

Carlo Gavazzi’s relays provide invaluable protection for machinery against power anomalies

Image of Carlo Gavazzi's DI and DU Series Current and Voltage Monitoring RelaysCarlo Gavazzi’s DI series of current monitoring relays can monitor both AC and DC currents. Current reading is made directly on the terminals, either through an external shunt or current transformer. Models such as DIA53 and DIB01 feature built-in current transformers that can read up to 100 AAC. For applications with several hundred amps or more, external current transformers can be used with DI series monitoring relays.

The DU series of voltage monitoring relays can monitor both AC and DC single phase, from millivolts up to several hundred volts. With various models, under-voltage, over-voltage, or even both can be monitored and addressed before damage to machinery occurs. 

DI Series Features
  • Over-current and/or under current monitoring
  • 1-phase AC
  • Up to 100 A direct detection
  • Units with built-in current transformer
  • Adjustable set points and hysteresis
  • 1x or 2x SPDT relay outputs
  • Output delay time adjustable
DU Series Features
  • Over-voltage and/or undervoltage monitoring
  • 1-phase AC/DC
  • Measuring ranges from 0.1 V up to 500 V
  • SPST, SPDT, or DPDT relay outputs
  • Adjustable setpoints, hysteresis, and output delay time
  • Regenerated voltage detection

DI and DU Series Current and Voltage Monitoring Relays

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
RELAY MONITOR OVER VOLT ADJDUA01CB23500VRELAY MONITOR OVER VOLT ADJ45 - ImmediateView Details
RELAY MONITOR VOLT 2-500VDUB01CD48500VRELAY MONITOR VOLT 2-500V49 - ImmediateView Details
RELAY MONITOR VOLT 2-500VDUB01CB23500VRELAY MONITOR VOLT 2-500V27 - ImmediateView Details
3PHASE OVER/UNDER VOLT MONITORDPB01CM483PHASE OVER/UNDER VOLT MONITOR25 - ImmediateView Details
3PHASE OVER/UNDER VOLT MONITORDPC01DM483PHASE OVER/UNDER VOLT MONITOR21 - ImmediateView Details
RELAY MONITOR UNDER VOLT 8-28DCDUA52C724RELAY MONITOR UNDER VOLT 8-28DC6 - ImmediateView Details
OVERVOLT MONITOR RELAY 500V ADJPUA01CB23500VOVERVOLT MONITOR RELAY 500V ADJ8 - ImmediateView Details
OVER/UNDER VOLTAGE RELAYDUB02CT23OVER/UNDER VOLTAGE RELAY6 - ImmediateView Details
3-PHASE OVER/UNDER VOLT RLYPPB01CM483-PHASE OVER/UNDER VOLT RLY2 - ImmediateView Details
115-230VAC PROCESS SIGNAL RLYDIC01DB23AV0115-230VAC PROCESS SIGNAL RLY3 - ImmediateView Details
Published: 2019-08-22