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Monitoring Relays

Altech Monitoring Relays ensure reliable voltage, current, and phase monitoring—DIN rail-mounted, multifunction, and ideal for industrial protection and control.

monitoring relay table

Altech Monitoring Relays ensure reliable voltage, current, and phase monitoring—DIN rail-mounted, multifunction, and ideal for industrial protection and control.

A Monitoring Relay is a protective control device. The basic functions include receiving input signals, monitoring and determining them, and outputting an alarm signal if a set value (threshold) is reached.

AMR-ES3M480V5A2M

AMR-AI1M5A2D

AMR-AI3M5A2D

AMR-AP1M300V2D

Alsense Energy Monitor

Features

  • 1- and 3-Phase Universal Energy Meter
  • Up to 277 VAC (L - N)/ 480VAC (L - L)
  • Usage with external CT
  • 1 x digital Input
  • 2 x digital Outputs
  • Measured Values provided via Modbus RTU/ RS485

Functions

  • Line to neutral voltage measurement
  • Current measurement
  • Reactive power measurement
  • Active power measurement
  • Reactive energy
  • Active energy
  • Power factor measurement
  • Line to line voltage measurements

Current Monitoring Relay

Features

  • Current Monitoring 1-Phase
  • 20mA, 1A, 5A
  • AC/ DC (16.6-400Hz)
  • 2 x DPDT Outputs
  • 22.5mm Wide Industrual Design

Functions

  • Overcurrent monitoring
  • Overcurrent monitoring + latch
  • Undercurrent monitoring
  • Undercurrent monitoring + latch
  • Window function
  • Window function + latch

Current Monitoring Relay

Features

  • Current Monitoring 3-Phase
  • 5A
  • AC (16.6-400Hz)
  • 2 x DPDT Outputs
  • 22.5mm Wide Industrual Design

Functions

  • Overcurrent monitoring
  • Overcurrent monitoring + latch
  • Undercurrent monitoring
  • Undercurrent monitoring + latch
  • Window function
  • Window function + latch

Voltage Monitoring Relay

Features

  • Voltage Monitoring 1-Phase
  • 30V, 60V, 300V AC/DC
  • Measure 1.5V - 300V
  • 2 x DPDT Output
  • 22.5mm Wide Industrual Design

Functions

  • Overvoltage monitoring
  • Overvoltage monitoring + latch
  • Undervoltage monitoring
  • Undervoltage monitoring + latch
  • Window function
  • Window function + latch

Click for PDF catalog file.

Click for PDF catalog file.

Click for PDF catalog file.

Click for PDF catalog file.

AMR-AP3U690V2D

AMR-EP1F480277V1D

AMR-EP1M230V1

PRSV600-2

Voltage Monitoring Relay

Features

  • Undervoltage Monitoring 3-Phase
  • Phase Sequence and Phase Failure
  • Supply Voltage = Measuring Voltage
  • 22.5mm Wide Industrial Design

Functions

  • Undervoltage Monitoring
  • Phase Sequence Monitoring
  • Phase Failure Monitoring

Voltage Monitoring Relay

Features

  • Voltage Monitoring 3-Phase
  • 208V/120V to 480V/277V
  • Multi Function
  • 1 x DPDT Output
  • 17.5mm Wide Compact Design

Functions

  • Phase Failure
  • Phase Sequence
  • Phase Assymmetry (adjustable)
  • Tripping Delay

Voltage Monitoring Relay

Features

  • Voltage Monitoring 1-Phase
  • 24 VAC, 24 VDC, 230 VAC
  • Multi Function
  • 1 x DPDT Output
  • 17.5mm Wide Compact Design

Functions

  • Undervoltage Monitoring
  • Phase Sequence Monitoring

 

Voltage Monitoring Relay

Features

  • Voltage Monitoring 3-Phase/ 3 Wire, 3-Phase/ 4 Wire
  • True RMS Measurement
  • Power ON Delay, Trip Delay, Recovery Delay
  • 2 Independent Relays (Protection or Alarm)
  • Compact DIN Rail Design

Functions

  • Under/ Over Voltage Monitoring
  • Under/ Over Frequency Monitoring
  • Phase Asymmetry
  • Phase Sequence Monitoring
  • Phase Failure Monitoring

 

Click for PDF catalog file.

Click for PDF catalog file.

Click for PDF catalog file.

Click for PDF catalog file.

Monitoring Relays

    CFTD2 - Fan Monitoring & Control Device with Temperature

    CFTD2
    FeaturesCompact and standard DIN Mounting Individual fans can be programmed Autosensing/Manual Sensing saves calibration time. LED Indication for FAN OK, FAN FAIL, FUSE FAIL & amp; FAN TRIP SET Potential free contact for Fan/Temp Failure Display for Temperature Display and program 3-Wire RTD Interface Click for Data Sheet< Product...
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    Monitoring Relays

      CFTD4 - Fan Monitoring & Control Device with Temperature

      CFTD4
      FeaturesAutomatic Fan calibration Manual programming of Individual Fans Fan Overload, Fault Identification Fan Redundancy Various fan modes 3-Wire RTD Interface along with device Live temperature display Click for Data Sheet< Product photo imprint will vary depending on part number selection.
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      Monitoring Relays Monitoring Relays 2

        Universal Monitor DO-1 for Modbus

        DO-1
        Simple Monitoring Device for your business. No Subscription • No License Click for datasheet. Click for PDF catalog file. Click here for full Manual.DO-1 Detail InformationComponent DescriptionLED ETH Lights up green when the connection to the Ethernet network is establishedLED BUS Flashes green in time with the bus...
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        Monitoring Relays

          CFTDPR4 - Fan Monitoring & Control Device with Temperature

          CFTDPR4
          FeaturesAutomatic Fan calibration Manual programming of Individual Fans Fan Overload, Fault Identification Fan Redundancy Various fan modes 3-Wire RTD Interface along with device Live temperature display 4 - 20 mA analog temperature feedback Click for Data Sheet< Product photo imprint will vary depending on part number selection.
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          Monitoring Relays Monitoring Relays 2

            Universal Monitor DO-1-DR for Modbus

            DO-1-DR
            Simple Monitoring Device for your business. No Subscription • No License Click for datasheet. Click for PDF catalog file. Click here for full Manual. DO-1-DR with DIN Rail Mount - Detail InformationComponent Description LED ETH Lights up green when the connection to the Ethernet network is established LED BUS Flashes green in time with the bus cycle...
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            Monitoring Relays Monitoring Relays 2

              Alsense Energy Monitor, AMR-ES3M480V5A2M

              AMR-ES3M480V5A2M
              Part No. AMR-ES3M480V5A2M1- and 3-Phase Universal Energy Meter Up to 277 VAC (L - N)/ 480VAC (L - L) Usage with external CT 1 x digital Input 2 x digital Outputs Measured Values provided via Modbus RTU/ RS485DATA SHEET
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              Monitoring Relays

                Voltage Monitoring Relay, PRSV600-2

                PRSV600-2
                Part No. PRSV600-2Voltage Monitoring 3-Phase/ 3 Wire, 3-Phase/ 4 Wire True RMS Measurement Power ON Delay, Trip Delay, Recovery Delay 2 Independent Relays (Protection or Alarm) Compact DIN Rail DesignDATA SHEET
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                Monitoring Relays
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