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    • Relays
    • TimeMark B258BM
  • TimeMark B258BM Phase Monitor Relay
  • TimeMark B258BM Phase Monitor Relay

    TimeMark B258BM

    TimeMark

    MSRP:
    Now: $96.25
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    Technical Help

    Product Description

    Phase Monitor Relay • Nominal AC Voltage: 120VAC • Case Color: Grey • Adjustment range: 85-120VAC • Power consumption: 1.4W • Reset: Manual • Frequency: 60Hz • Output contacts : 10A@240VAC • Mounting : 8-pin socket ( **sold separately)
     
          Product Information       Resources
    ManufacturerTimeMark
    Product Category Monitor
    Product Sub Category Phase Monitor Relay
    SeriesModel 258
     
      Download Datasheet
          Specifications
    Product Attribute
    Attribute Value
    Nominal AC Voltage120VAC
    Case ColorGrey
    Adjustment range85-120VAC
    Power consumption1.4W
    ResetManual
    Frequency60Hz
    Transient protection 2500VAC
    Repeat accuracy ± 0.1% of set point (fixed conditions)
    Response time 50ms drop out
    Dead band Approximately 2%
    Output contacts 10A@240VAC
    Expected relay life Mechanical: 10 million operations
    Electrical: 100,000 operations@rated load
    Operating temp -20° to +131° F
    Humidity tolerance 0 - 97% w/o condensation
    Enclosure material ABS plastic cover
    Mounting 8-pin socket ( **sold separately)
    Weight 5 ounces
    Agency approvals UL Recognized* and CSA Certified
    *Conditions of acceptability: (1) the 380V and 480V versions must be used with a UL Recognized 600VAC
          Series Features
    MODEL 258 3-Phase Monitor
    Series Description: The Model 258 continuously monitors 3- phase power lines for abnormal conditions. When properly adjusted, the Model 258 Monitor will detect phase loss on a loaded motor even when regenerated voltage is present.

    This device consists of a solid-state voltage and phase-angle sensing circuit, driving an electromechanical relay. When correct voltage and phase rotation are applied, the internal relay will energize. A fault condition will de-energize the relay. When the fault is corrected, the monitor will automatically reset (a manual reset version is also available).

    The Model 258 3-Phase Monitor does not require a neutral connection and can be used with Wye or Delta systems. Voltage ranges are sufficiently wide to allow for proper adjustment to existing conditions. Both “TRIP” and “NORM” condition indicators are provided to aid in adjustment and system trouble-shooting.
    • Detects phase loss, low voltage, phase reversal
    • 50Hz, 60Hz and 400Hz models
    • Automatic or manual reset
    • Five year unconditional warranty

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