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Smart Residual MCCB(Metering Type) TDK3ELJ

The rated insulation voltage of smart residual molded case current circuit breaker (metering type) is 1000v, which is suitable for three-phase four-wire neutral point direct grounding (TT) distribution networks with AC 50Hz, 400V rated voltage and 800A rated current It is used to provide indirect contact protection. Prevent fire danger caused by grounding fault current due to equipment insulation damage. And it can be used to distribute electric energy and it can also be used to distribute electric energy and protect lines and power supply equipment from overload, undervoltage, short circuit, single-phase grounding and other faults.

    Model and Meaning

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    Serial No. Item meaning
    Enterprise code:TALEMOD
    MCCB(Molded Case Circuit Breaker)
    Design No.
    Electronic &adjustable
    With residual current protection
    J:Metering type

    Frame grade current (A):Inm=125,Inm=250,Inm=400,Inm=630,Inm=800

    (Note:Model 800 does not have neutral wire on left)

    Automatic reclosing of leakage trip
    Y:LCD
    Z:Neutral wire on left;N/A:Neutral wire on right
    Standard type

    Main Technical Parameters

    Model TDK3ELJ-125 TDK3ELJ-250 TDK3ELJ-400
    TDK3ELJ-630
    TDK3ELJ-630 TDK3ELJ-800
    Frame grade curent Inm(A) 125 250 400630 630 800
    No.of poles 3P+N
    Rated operating voltage Ue(V) AC400/50Hz
    Rated insulation voltage Ui(V) 1000
    Rated impulse withstand voltage Uimp(kV) 8
    Flashover distance(mm) ≯50 ≯100
    Ultimate short-circuit breaking capacity Icu(kA) 50  70(H) 65  85(H) 65  85(H) 65  85(H)
    Operating short-circuit breaking capacity Ics(kA) 35  50(H) 42  55(H) 50  65(H) 42  55(H)
    Rated residual short-circuit making (breaking) capacity I△m(kA) 12.5 17.5(H) 16.25  21.25(H)
    Rated short-time withstand current Icw(kA)/s 3 400:5 630:8 8 10
    Residual current operating characteristics AC type
    Rated residual operating current I△n(mA) 30/50/75/100/200/300/500/ 600/800/Auto 30/50/100/200/300/400/500/600/800/1000/Auto
    Residual operating time characteristics Delayed/non-delayed type
    Limit non-drive time of delayed type (s) 0.06/0.1/0.2 Optional:2I△n
    Breaking time (s) I△n≤0.5;2I△n≤0.2;5I△n≤0.15
    Auto re-closing time (s) 20~60
    Operational performance (times) Powered 1000 1000 500
    Not powered 7000 4000 2500
    Total 8000 5000 3000
    Overload and short circuit characteristics Three-stage protection,electronically adjustable,see "Description of Protection Characteristics"for details
    Overvoltage protection value (V) Set value(231~330)/default value 275V
    Undervoltage protection value (V) Set value(88~209)/default value 145V
    Phase loss protection value (V) Set value (10~130)/default value 30V
    Link control delay time(ms) ≤40ms
    Communication delay time(ms) ≤200ms

    Measuring Accuracy Grade

    Accuracy Allowable error
    Current accuracy ±0.5%,±1.0%
    Voltage accuracy ±0.5%,±1.0%
    Active power accuracy ±1.0%,±1.5%,2.0%,2.5%
    Reactive power accuracy ±1.0%,±1.5%,2.0%,2.5%
    Residual current accuracy ±1.0%,±2.0%

    Main Functions and Features

    High-performance 32-bit ARM microprocessor is used to carry out signal processing and intelligentcontrol in real time;

    LCD Chinese/English display provides friendly HMI and simple operation;

    For residual current (leakage) protection, the residual current gear can be set online, with reclosingfunction;

    Monitor and track the residual current of the line in real time, and automatically adjust the gearto ensure the operation rate and reliability of the product;

    Long delay, short delay and instantaneous three-stage protection, electronic tripping mode is applied.which is independent of supply voltage;

    High breaking capacity could ensure the reliability of short circuit protection for the line,Overvoltage protection, undervoltage protection, phase loss protection and

    neutral wire missingprotection;

    Protection functions and parameters can be set and modified online;

    Real-time display of line residual current, three-phase supply voltage and load current; Real-timemeasurement of parameters such as active power, reactive power,

    apparent power & power factor.

    Trip types (residual current, locking, overload, undervoltage, overvoltage, phase loss, fault neutral linecan be identified & displayed, and can be stored, inquired &

    deleted;

    Functions of remote communication, telemetry, remote control and remote adjustment are supported;

    HPLC pluggable module and micro-power Bluetooth wireless communication;

    0.05ln-1.2ln metering can reach level 1.0; Real-time monitoring of the temperature of the incomingconnector bar(optional);

    Accumulation of three-phase active power, Modes such as time control & cost control are optionaland the application is more flexible;

    Support DL/T645 protocol and Modbus protocol, and automatic identification is achieved;

    Supportonline remote upgrade, which is convenient for maintenance and upgrade;

    Accuracy grade: The highest accuracy of current and voltage can reach 0.5s; The accuracy of activeand reactive power can reach level 1, and the residual current can

    reach level 2.

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