MachineAlert Relays 809, 813, 817, 819

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The Monitoring Relays family of dedicated function electronic motor protection relays offers state-of-the-art supplementary protective functions that are easily added and applied to motor control circuits. Monitoring Relays are an economical choice for protecting equipment investments and minimizing production downtime. To meet specific application requirements, a full range of products allows selective addition of protective enhancing functions for both motors and equipment.

Product Selection

Motor Protection Relay Type Description Cat. No.
Bulletin 809S
Current Monitors
  • under-, overcurrent, under-, overvoltage
    		•  0.5…5 A AC/DC (1-phase), 2.0…24.9V or 20…249V AC/DC 50/60 Hz 809S-E1Ä
  • under-, overcurrent
    		•  2.0…15 A AC/DC (1-phase) 809S-E2Ä50
    Bulletin 813S
    Phase Monitors
  • phase loss, under-, overvoltage, phase imbalance, phase sequence
    		•  Monitoring Range 150…500V AC 813S-E2BÄ50
    Monitoring Range 250…690V AC 813S-E2CÄ50
    Bulletin 817
    Thermistor Monitors
  • overtemperature
    		•  Automatic Reset  ¬  817-E1
    Automatic, manual or remote reset, status storage  ¬  817-E2
    Bulletin 819
    Motor Rotation Monitors
  • zero speed detection
    		•  Max. Monitored Voltage 400V AC max. (IEC), 300V AC max. (CSA/UL), or Frequency Monitoring for signals of any curve form in the range 16…100Vp-p 819-E1Ä
    Max. Monitored Voltage 690V AC max. (IEC), 600V AC max. (CSA/UL) 819-E2Ä
      
    ¬ Rated supply voltage of 24…240 V AC/DC.

    Ä Supply Voltage Suffix Code

    The Cat. No. as listed is incomplete. Select a Supply Voltage Suffix Code from the table below to complete the Cat. No. Example: Cat. No. 809S-E1Ä becomes 809S-E1D.

    AC Control   DC Control
    Code Description Code Description
    D 115V AC ZJ 24V DC
    A 230V AC