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location：Intelligent Power Distribution Products > Low-voltage breakers

R6T Series
Low-voltage Molded Case Circuit Breaker

Features
This circuit breaker is suitable for AC circuits operating at 50Hz, with rated voltages of 400V and 690V, and rated currents up to 800A. It is used for distributing electrical energy and protecting the circuit and power equipment from risks such as overload, undervoltage, short circuit, and ground faults. This series of circuit breakers is characterized by compact structure, small size, high breaking capacity, short arcing time, and complete internal and external accessories. The breaker technology keeps pace with the times and meets the highest product safety level.
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  • Features
  • Parameter
  • Application field

  • Voltage Level: 0.4kV-0.69kV

    Product features:

    1.Complete product series including thermal magnetic type, electric leakage protection type, electronic type, type for DC application

    2.Special function of overload alarm without tripping and multi-phase leakage protection etc.

    3.High breaking cability, reaching up to 100Ka

    4.Equipped with electric operating mechanisms, intelligent modules, and communication modules,it can realize numerous  intelligent functions





  • Serial number

    Project

    Unit

    MHRM3E-125

    MHRM3E-250

    MHRM3E-400

    MHRM3E-630

    MHRM3E-800

    1

    Rated current of frame level Inm

    A

    125

    250

    400

    630

    800

    2

    Setting current Ir

    A

    32（16,20,25,32）63（32,36,40,45,50,55,60,63）125（63,65,70,75,80,85,90,95, 100,125）

    250（100,125,140,160,180,200,225,250）

    630（400,420,440,460,500,560,600,630）

    630（400,420,440,460,500,560,600,630）

    800（630,640,660, 680,700,720,740, 760,780,800）

    3

    Number of poles

     

    3P/4P

    3P/4P

    3P/4P

    3P/4P

    3P/4P

    4

    Rated insulation voltage Ui

    V

    1000

    5

    Rated impulse withstand voltage Uimp

    kV

    8000

    6

    Interrupting capacity level

     

    M

    H

    M

    H

    M

    H

    M

    H

    M

    H

    7

    Rated ultimate short-circuit breaking capacity is denoted as Icu

    kA

    50

    85

    50

    85

    65

    100

    65

    100

    65

    100

    8

    Rated service short-circuit breaking capacity is denoted as Ius

    kA

    35

    65

    35

    65

    50

    65

    50

    65

    50

    65

    9

    Rated operational short-circuit withstand current Icw (1s)

    kA

    5

    5

    5

    9.6

    9.6

    10

    Mechanical life

    Times

    8500

    7000

    4000

    4000

    2500


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