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Schneider Electric P821------3--- Image

View all MiCOM P821

P821------3---

Schneider Electric P821------3--- Image
View all MiCOM P821
P821------3---

MiCOM P821 - Breaker failure protection relay - 20 TE - Large LCD display

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  • Main
    range of product
    MiCOM P821
    device short name
    P821
    relay application
    Breaker failure
    protection type
    3-pole breaker
    Breaker failure 50BF
    Negative sequence/unbalance 46
    Overcurrent 50/51
    Earth fault 50G/51G
    Undervoltage 27
    Overvoltage 59
    Underfrequency 81L
    Directional earth fault 67N
    Overfrequency 81O
    Directional phase overcurrent 67
    Restricted earth fault 64REF
    Overfluxing (V/Hz) 24
    Two-winding transformer differential 87T
    Thermal overload protection 49RMS
    number of inputs
    4 analog
    4 current input CT...X/5 A and X/1 A
    5 discrete
    1.4 voltage
    number of outputs
    4 analog
    9 discrete
    communication port protocol
    DNP3
    Modbus RTU
    IEC 60870-5-103
    Complementary
    [Us] rated supply voltage
    24...250 V DC 19.2...300 V
    48...250 V DC 38.4...300 V
    48...240 V AC 38.4...264 V
    network and machine diagnosis type
    Fault recording
    Event recording
    Disturbance recording 15 s
    switchgear diagnosis type
    VT supervision VTS
    CT supervision CTS
    display type
    Backlit LCD 2 lines of 16 characters
    discrete input voltage
    24...250 V DC (Threshold : 19.2 V (Threshold : standard variant)
    48...250 V AC (Threshold : 19.2 V (Threshold : standard variant)
    48...250 V DC (Threshold : 105 V (Threshold : further option)
    48...250 V DC (Threshold : 77 V (Threshold : further option)
    48...250 V DC (Threshold : 154 V (Threshold : further option)
    48...240 V AC (Threshold : 105 V (Threshold : further option)
    48...240 V AC (Threshold : 77 V (Threshold : further option)
    48...240 V AC (Threshold : 154 V (Threshold : further option)
    communication port support
    RS485
    RS232
    Environment
    height
    177 mm total
    157.5 mm embedded
    width
    103 mm
    depth
    270 mm total
    240 mm embedded
    device mounting
    Flush
  • Technical FAQs

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