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Overcurrent protection relay device SD 201A
sanda
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Model Number:SD201A

Temperature:-5℃ to +55℃

Dimension (mm):96(w) x 96(h) x 90(d)

Rated voltage:250V AC / DC

Brand Name:SANDA or OEM

Usage:Protective

Contact Load:Low Power

Mounting:Panel mounting

Contact rating:5 A

Approximate weight: 0.6 kg

Theory: Electromagnetic Relay

Humidity: 56 days at 93% RH and 40℃ 

    Protection Relay Description

    SANDA's SD201A is a digital microprocessor based relay. This relay employs extensive advance numerical technique simple mented in real-time, for the computation of measured input quantity. Other advance features include programmable control output, metering and fault data recording.


    Earth Fault Protection Relay Features:

    • Microprocessor based numercial relay

    • Current measurement based on fundamental frequency

    • Low-set definite time relay

    • High-set instaneous relay

    • Seperate low-set and high-set indicators

    • option to disable the high-set relay

    • Front panel access to the test function

    • Complies with IEC 60255-26 standard

    • ANSI Code:50N,51N


    Protection Relay Show


    switchgear cabinet protection relay


    Protection Relay Specification

    RATINGS

    AUXILIARY SUPPLY

    Rated current(In)

    5A

    Model SD201A-240A

    198~265V AC

    Rated frequency

    50Hz

    Model SD201A-110A

    94~127V AC

    Burden

    <0.3VA at In

    Supply frequency

    50 Hz

    Thermal withstand

    4 x In continuous

    VA rating

    3 VA typical

    ACCURACY

    OUTPUT CONTRACTS

    Protection thresholds

    ±5%

    Trpi contract(R1)

    Manual reset type

    Time delay

    ±5% with a minimum of 50ms

    Rated voltage

    250V AC

    INDICATORS

    Contract rating

    5A

    Auxiliary supply

    Green indicator

    Expected electrical life

    100,000operations at rated current

    Pick-up

    Red indator

    Trip

    Red indator

    Expected mechanical life

    5 x 106 operations

    ENVIRONMENTAL CONDITIONS

    SETTINGS RANGES

    Temperature

    ﹣5℃to+55℃

    Low-set(1>)

    0.1A to 2.0A

    Humidity

    56 days at 93% RH and 40℃ non-condesing

    2% to 40%

    MECHANICAL

    Low-set delay time(DELAY)

    0.05 sec to 1.0 sec

    Mounting

    Panel mounting

    High-set(1>>)

    1>to 10x1> or disable

    Dimension(mm)

    96(w)×96(h)×90(d)

    Approximate weight

    0.6kg

    High-set delay time(t>>)

    Instaneous


    ——————————————————Protection Relay Chart——————————————————

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