Product/Service

Motor Protectors - PLMU, WVM, DLM and RLM series

Entrelec/SSAC offers a number of different motor protectors
Entrelec/SSAC offers a number of different motor protectors. Each is UL recognized and CSA certified and each has its own unique function and features.

PLMU Series
The PLMU series continuously measures voltage in each of three phases to provide motor protection. Standard features include:

  • Microcontroller senses and protects against under and overvoltage, voltage unbalance, phase loss and phase reversal
  • Protects motor even when regenerated voltage is present
  • Universal voltage operation and standard base connection allows it to replace many competitive parts
  • Octal plug-in with SPDT isolated 10A contacts
  • Operates 200-480 VAC
  • LED indicator glows green for acceptable voltage, red for faults
  • Simple three-wire connection for Delta or Wye systems

    WVM Series
    The WVM series protects against premature equipment failure caused by voltage faults on the three-phase line. Standard features include:

    • Microcontroller design provides reliable protection in presence of regenerated voltage
    • Protects against phase loss and reversal, over and under and unbalanced voltages and short cycling
    • Protects equipment when you are gone and lets you know what happened when you return
    • Includes time delays (adjustable trip delay, restart delay and true random restart delay) to prevent nuisance tripping and voltage sags caused by simultaneously restarting numerous motors after a power outage while ultimately improves system operation
    • 10 fault memory and stats displayed on six LED readout
    • Switch selectable automatic restart, delayed automatic restart and manual restart
    • Isolated 10-A SPDT relay contacts

    DLM Series
    The DLM series continuously monitors the voltage of each of the three phases. Standard features for this series include:

    • Separately senses and protects against phase loss, phase reversal, overvoltage, undervoltage and voltage unbalance
    • Protection is assured during periods of large average voltage fluctuations or when regenerated voltage is present
    • 35mm DIN rail or surface mounting available
    • SPDT isolated 10-A relay contacts
    • LED glows when all conditions are acceptable
    • Line voltage 100-600 VAC in 5 ranges
    • Simple 3-wire connection for Delta/Wye systems

    RLM Series
    The RLM series is a series of encapsulated three-phase voltage monitors that continuously measure the voltage of each of the three phases. Standard features include:

  • Circuit design separately senses and protects against phase reversal, undervoltage and voltage unbalance including phase loss
  • Protection is assured during periods of large average fluctuations or when regenerated voltages are monitored
  • Both Delta and Wye systems can be monitored and no connection to neutral is needed
  • Industrial packaging with encapsulated circuitry
  • Fully-adjustable or factor-fixed
  • SPDT isolated 8-A contacts
  • LED glows when all conditions are acceptable
  • Line voltages 200-480 VAC in 3 ranges

    Morris Automation Group, 518 18th Street SW, Roanoke, , US, 24016. Tel: 800-562-5581; Fax: 540-344-2640.