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    CJM1 Low Voltage 3p 160A 200A 225A 400A Moulded Case Circuir Breaker MCCB Featured Image
    • CJM1 Low Voltage 3p 160A 200A 225A 400A Moulded Case Circuir Breaker MCCB
    • CJM1 Low Voltage 3p 160A 200A 225A 400A Moulded Case Circuir Breaker MCCB
    • CJM1 Low Voltage 3p 160A 200A 225A 400A Moulded Case Circuir Breaker MCCB
    • CJM1 Low Voltage 3p 160A 200A 225A 400A Moulded Case Circuir Breaker MCCB

    CJM1 Low Voltage 3p 160A 200A 225A 400A Moulded Case Circuir Breaker MCCB

    Short Description:

    Application

    CJMM1 series moulded case circuit breaker(hereinafter referred to as circuit breaker) is pplicable for AC 50/60HZ power distribution network circuit with rated insulation voltage of 800V, rated operation voltage of 690V and rated operation current from 10A to 630A, it’s used to distribute power and prevent circuit and power supply equipment from damage due to overload, short circuit, under voltage and other faults, it’s also used for infrequent start of motor as well as overload, short circuit and under voltage protection.This circuit breaker owns advantages of small volume, high breaking capacity, short arcing (or noarcing)etc, it can be equipped with accessories like alarm contact, shunt release, auxiliary contact etc, it’s an ideal product for user. The residual current circuit breaker can either be vertically installed (vertical installation) or be horizontally installed (horizontal installation) The product is in accordance with the standards of IEC60947-2 and Gb140482


    Product Detail

    Product Tags

    Product Model

    CJ:Enterprise code
    M:Moulded case circuit breaker
    1:Design No
    □:Rated current of frame
    □:Breaking capacity characteristic code/S denotes standard type (S can be omitted)H denotes higher type

    Note: There are four types of neutral pole (N pole) for four phases product.The neutral pole of type A is not equipped with over-current tripping element, its always switched on, and it is not switched on or off together with other three poles.
    The neutral pole of type B is not equipped with over-current tripping element, and it’s switched on or off together with other three poles(the neutral pole is switched on before being switched off)The neutral pole of type C is equipped with over-current tripping element, and it’s switched on or off together with other three poles(the neutral pole is switched on before being switched off) The neutral pole of type D is equipped with over-current tripping element, it’s always switched on and is not switched on or off together with other three poles.

    Table 1

    Accessory name Electronic release Compound release
    Auxiliary contact,under voltage release,alam contact 287 378
    Two auxiliary contact sets,alarm contact 268 368
    Shunt release, alarm contact, auxiliary contact 238 348
    Under voltage release,alarm contact 248 338
    Auxiliary contact alarm contact 228 328
    Shunt release alarm contact 218 318
    Auxiliary contact under-voltage release 270 370
    Two auxiliary contact sets 260 360
    Shunt release under-voltage release 250 350
    Shunt release auxiliary contact 240 340
    Under-voltage release 230 330
    Auxiliary contact 220 320
    Shunt release 210 310
    Alarm contact 208 308
    No accessory 200 300

    Classification

    • By breaking capacity: a standard type(type S) b higher breaking capacity type(type H)
    • By connection mode: a front board connection, b back board connection, c plugin type
    • By operation mode: a direct handle operation, b rotation handle operation,c electrical operation
    • By number of poles: 1P, 2P, 3P, 4P
    • By accessory: alarm contact, auxiliary contact, shunt release, under voltage release

    Normal Service Condition

    • The altitude of the installation site shall not exceed 2000m
    • Ambient air temperature
    • The ambient air temperature shall not exceed +40℃
    • The average value shall not exceed +35℃ with in 24 hours
    • The ambient air temperature shall not be less than -5℃
    • Atmosphere condition:
    • 1There lative humidity of atmosp here shall not exceed 50% at highest temperature of +40℃,and it can be higher atalower temperature,when theaver agelowest temperature in the wettest month doesn’t exceed 25℃ can be 90%,conden sationon product surfacedue to temperature change must be takenin to account.
    • The pollution level is class 3

    Main Technical Parameter

    1 Rated value of circuit breakers
    Model Imax (A) Specifications (A) Rated Operation Voltage(V) Rated Insulation Voltage(V) Icu (kA) Ics (kA) Number of Poles (P) Arcing Distance (mm)
    CJMM1-63S 63 6,10,16,20
    25,32,40,
    50,63    		 400 500 10* 5* 3 ≤50
    CJMM1-63H 63 400 500 15* 10* 3,4
    CJMM1-100S 100 16,20,25,32
    40,50,63,
    80,100    		 690 800 35/10 22/5 3 ≤50
    CJMM1-100H 100 400 800 50 35 2,3,4
    CJMM1-225S 225 100,125,
    160,180,
    200,225    		 690 800 35/10 25/5 3 ≤50
    CJMM1-225H 225 400 800 50 35 2,3,4
    CJMM1-400S 400 225,250,
    315,350,
    400    		 690 800 50/15 35/8 3,4 ≤100
    CJMM1-400H 400 400 800 65 35 3
    CJMM1-630S 630 400,500,
    630    		 690 800 50/15 35/8 3,4 ≤100
    CJMM1-630H 630 400 800 65 45 3
    Note: When the test parameters for the 400V, 6A without heating release
    2 Inverse time breaking operation characteristic when each pole of overcurrent release for power distribution is powered on at the same time
    Item of test Current (I/In) Test time area Initial state
    Non-tripping current 1.05In 2h(n>63A),1h(n<63A) Cold state
    Tripping current 1.3In 2h(n>63A),1h(n<63A) Proceed immediately
    after No.1 test
    3 Inverse time breaking operation characteristic when each pole of over-
    current release for motor protection is powered on at the same time.
    Setting Current Conventional time Initial State Note
    1.0In >2h Cold State
    1.2In ≤2h Proceeded immediately after the No.1 test
    1.5In ≤4min Cold State 10≤In≤225
    ≤8min Cold State 225≤In≤630
    7.2In 4s≤T≤10s Cold State 10≤In≤225
    6s≤T≤20s Cold State 225≤In≤630
    4 The instantaneous operation characteristic of circuit breaker for power distribution shall be set as 10in+20%, and the one of circuit breaker for motor protection shall be set as12ln±20%

    Outline Installation Size

    CJMM1-63, 100, 225, Outline and Installation Sizes (Front board connection)

    Sizes(mm) Model Code
    CJMM1-63S CJMM1-63H CJMM1-63S CJMM1-100S CJMM1-100H CJMM1-225S CJMM1-225
    Outline Sizes C 85.0 85.0 88.0 88.0 102.0 102.0
    E 50.0 50.0 51.0 51.0 60.0 52.0
    F 23.0 23.0 23.0 22.5 25.0 23.5
    G 14.0 14.0 17.5 17.5 17.0 17.0
    G1 6.5 6.5 6.5 6.5 11.5 11.5
    H 73.0 81.0 68.0 86.0 88.0 103.0
    H1 90.0 98.5 86.0 104.0 110.0 127.0
    H2 18.5 27.0 24.0 24.0 24.0 24.0
    H3 4.0 4.5 4.0 4.0 4.0 4.0
    H4 7.0 7.0 7.0 7.0 5.0 5.0
    L 135.0 135.0 150.0 150.0 165.0 165.0
    L1 170.0 173.0 225.0 225.0 360.0 360.0
    L2 117.0 117.0 136.0 136.0 144.0 144.0
    W 78.0 78.0 91.0 91.0 106.0 106.0
    W1 25.0 25.0 30.0 30.0 35.0 35.0
    W2 - 100.0 - 120.0 - 142.0
    W3 - - 65.0 65.0 75.0 75.0
    Install Sizes A 25.0 25.0 30.0 30.0 35.0 35.0
    B 117.0 117.0 128.0 128.0 125.0 125.0
    od 3.5 3.5 4.5 4.5 5.5 5.5

    CJMM1-400,630,800,Outline and Installation Sizes (Front board connection)

    Sizes(mm) Model Code
    CJMM1-400S CJMM1-630S
    Outline Sizes C 127 134
    C1 173 184
    E 89 89
    F 65 65
    G 26 29
    G1 13.5 14
    H 107 111
    H1 150 162
    H2 39 44
    H3 6 6.5
    H4 5 7.5
    H5 4.5 4.5
    L 257 271
    L1 465 475
    L2 225 234
    W 150 183
    W1 48 58
    W2 198 240
    A 44 58
    Install Sizes A1 48 58
    B 194 200
    Od 8 7

    Back Board Connection Cut-out Diagram Plug In

    Sizes(mm) Model Code
    CJMM1-63S
    CJMM1-63H    		 CJMM1-100S
    CJMM1-100H    		 CJMM1-225S
    CJMM1-225H    		 CJMM1-400S CJMM1-400H CJMM1-630S
    CJMM1-630H
    Sizes Of Back Board Connection Plug in Type A 25 30 35 44 44 58
    od 3.5 4.5*6
    deep hole    		 3.3 7 7 7
    od1 - - - 12.5 12.5 16.5
    od2 6 8 8 8.5 9 8.5
    oD 8 24 26 31 33 37
    oD1 8 16 20 33 37 37
    H6 44 68 66 60 65 65
    H7 66 108 110 120 120 125
    H8 28 51 51 61 60 60
    H9 38 65.5 72 - 83.5 93
    H10 44 78 91 99 106.5 112
    H11 8.5 17.5 17.5 22 21 21
    L2 117 136 144 225 225 234
    L3 117 108 124 194 194 200
    L4 97 95 9 165 163 165
    L5 138 180 190 285 285 302
    L6 80 95 110 145 155 185
    M M6 M8 M10 - - -
    K 50.2 60 70 60 60 100
    J 60.7 62 54 129 129 123
    M1 M5 M8 M8 M10 M10 M12
    W1 25 35 35 44 44 58

    What is MCCB?

    Molded case circuit breakers are electrical protection devices that are designed to protect the electrical circuit from excessive current. This excessive current can be caused due to an overload or short circuit. The molded case circuit breakers can be used in a wide range of voltages and frequencies with a defined lower and upper limit of adjustable trip settings. In addition to tripping mechanisms, MCCBs can also be used as manual disconnection switches in case of emergency or maintenance operations. MCCBs are standardized and tested for overcurrent, voltage surge, and fault protection to ensure safe operation in all environments and applications. They work effectively as a reset switch for an electric circuit to disconnect power and minimize damage caused by a circuit overload, ground fault, short circuits, or when current exceeds the current limiting.

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