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SJKM5-MCCB.jpg
SJKM5-MCCB.jpg

China SJKM5 Industrial MCCB Breaker Factory - 100A-630A Short-Circuit Protection Suppliers

The SJKM5 Molded Case Circuit Breaker (MCCB) is a high-performance solution for 100A-630A applications, offering robust 3P/4P protection. With an impressive 800V insulation and an 8kV impulse withstand capacity, this MCCB is IEC 60947-2 certified, ensuring reliability in various industrial environments. Its 1000V breaking capacity (AC 50/60Hz) with Icu/Ics protection levels makes it an excellent choice for demanding applications. Designed to operate in pollution degree 3 environments up to 40°C, the SJKM5 MCCB adheres to NEMA AB1 standards. Featuring a thermal-magnetic trip system, it provides precise overload and short-circuit protection for 380V-690V industrial systems. This quality circuit breaker is manufactured by leading suppliers in China and is ideal for power distribution panels, manufacturing plants, and commercial installations that require exceptional circuit protection. Choose the SJKM5 MCCB from our factory for durability and isolation capability you can trust
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    Product Details

    Type Designation
    SJKM5-Industrial-MCCB-Breaker-4
    • 1 Manufacturer Code
    • 2 Molded Case Circuit Breaker Code
    • 3 Design Code
    • 4 Frame Size
    • 5 Short-Circuit Breaking Capacity Level 4
    • 6 Operation Method 3
    • 7 Number of Poles 2
    • 8 Trip Unit Method & File Code
    • 9 Function Code 1
    Product Display
    SJKM5-Industrial-MCCB-Breaker-(3)
    SJKM5-Industrial-MCCB-Breaker-(2)
    SJKM5-Industrial-MCCB-Breaker-(1)
    Characteristic
    Rated insulation voltage (V) UI 800
    Rated impulse voltage (kV) Uimp 8
    Rated working voltage (V) Ue AC 50/60 Hz 690
    Applicable for Isolation IEC/EN 60947-2 YES
    Application Category A
    Pollution Degree IEC 60664-1 3
    Technical Parameters
    Circuit Breaker
    Breaking Capacity Level
    Electrical performance complies with IEC 60947-2
    Rated current (A) In 40℃
    Pole number
    Limit breaking capacity (kA rms)
    Icu AC 50/60 Hz 220/240V
    380/415V
    660/690V
    800V
    1000V
    Service breaking capacity (kA rms)
    Mechanical electrical Ics %Icu
    415V In
    440V In/2
    In
    690V In/2
    In
    Electrical performance complies with Nema AB1
    Breaking capacity (kA rms) AC 50/60 Hz 240V
    480V
    600V
    800V
    1000V
    Protection and measurement
    Short-circuit protection Magnetic protection
    Overload/short-circuit protection Thermal magnetic
    Electronic
    Electronic with neutral protection (off-0.5-1-OSN)
    With earth fault protection
    With zone selective interlock (ZS1)
    Display / l,U,P,F,E measurement / fault current measurement
    Options Cabinet door display unit
    Operation management
    Counter
    Historical logs and alarms
    Measurement communication
    Switch status/control communication
    Leakage protection Via Vig leakage protection module
    Via Vigirex leakage relay
    Installation/Connection
    Dimensions and weight
    Dimensions (mm) W×H×D Fixed front connection 2/3P
    4P
    Weight (kg) Fixed front connection 2/3P
    4P
    Connection
    Connection terminals Pole spacing With/without terminal expander
    Copper or aluminum cables Cross-sectional area mm²
    SJKM5-100 SJKM5-160 SJKM5-250 SJKM5-400 SJKM5-630
    F N H S L N F H S L N F H S L N F H S L N F H S L
    100 160 250 400 630
    3,4 3,4 3,4 3,4 3,4
    85 85 100 120 150
    36 50 70 100 150
    35 42 65 90 130
    25 30 50 65 70
    8 10 10 15 35
    30
    15    		 85 85 100 120 150
    36 50 70 100 150
    35 42 65 90 130
    25 30 50 65 70
    8 10 10 15 35
    30
    15    		 85 85 100 120 150
    36 50 70 100 150
    35 42 65 90 130
    25 30 50 65 70
    8 10 10 15 35
    30
    15    		 85 85 100 120 150
    36 50 70 100 150
    35 42 65 90 130
    25 30 50 65 70
    8 10 10 15 35
    30
    25    		 85 85 100 120 150
    36 50 70 100 150
    35 42 65 90 130
    25 30 50 65 70
    8 10 10 15 35
    30
    25
    100% 100% 100% 100% 100%
    50000 40000 20000 15000 15000
    30000 20000 10000 7000 7000
    50000
    30000    		 40000
    20000    		 20000
    10000    		 12000
    6000    		 8000
    4000
    20000
    10000    		 15000
    7500    		 10000
    5000    		 6000
    3000    		 6000
    2000
    85 90 100 120 150
    35 50 65 90 130
    8 20 35 40 35
    25
    12    		 85 90 100 120 150
    35 50 65 90 130
    8 20 35 40 35
    25
    12    		 85 90 100 120 150
    35 50 65 90 130
    8 20 35 40 35
    25
    12    		 85 90 100 120 150
    35 50 65 90 130
    8 20 35 40 35
    30
    15    		 85 90 100 120 150
    35 50 65 90 130
    8 20 35 40 35
    30
    15
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    105×161×86
    140×161×86    		 105×161×86
    140×161×86    		 105×161×86
    140×161×86    		 140×255×110
    185×255×110    		 140×255×110
    185×255×110
    2.05
    2.4    		 2.2
    2.6    		 2.4
    2.8    		 6.05
    7.9    		 6.2
    8.13
    35/45mm 35/45mm 35/45mm 45/52.5mm
    45/70mm    		 45/52.5mm
    45/70mm
    300 300 300 4×240 4×240
    Ordering Instructions

    Order Specifications Required from Customers:
    a) Product Name: Model Number. Rated Current;
    b) Rated Current. Number of Poles;
    c) Minimum Order Quantity.

    Example:
    Order SJKM5-100 3-pole circuit breaker, type F, rated current 100A, quantity 1000 units.
    Should be written as: SJKM5-100F/3P, 100A, 1000 units.

    Frequently Asked Questions (FAQ)
    Q What frame sizes are available for the SJKM5 Industrial MCCB?
    The SJKM5 series is available in five frame sizes: SJKM5-100, SJKM5-160, SJKM5-250, SJKM5-400, and SJKM5-630, covering a wide range of rated currents from 100A up to 630A to suit various industrial applications.
    Q What is the rated working voltage of the SJKM5 MCCB?
    The SJKM5 molded case circuit breaker has a rated working voltage (Ue) of up to 690V AC at 50/60 Hz, with a rated insulation voltage (UI) of 800V and a rated impulse voltage (Uimp) of 8 kV.
    Q Which international standards does the SJKM5 MCCB comply with?
    The SJKM5 series complies with IEC 60947-2 for electrical performance and isolation requirements, IEC 60664-1 for pollution degree classification, and also meets Nema AB1 standards for breaking capacity, ensuring global compatibility.
    Q What pole configurations are supported by the SJKM5 circuit breaker?
    The SJKM5 MCCB supports both 3-pole (3P) and 4-pole (4P) configurations across all frame sizes (100A to 630A), making it suitable for three-phase and three-phase with neutral industrial power distribution systems.
    Q What types of trip unit protection are available for the SJKM5?
    The SJKM5 offers multiple protection options including thermal magnetic protection, electronic trip units, electronic with neutral protection, earth fault protection, and zone selective interlock (ZSI). Optional leakage protection is available via Vig leakage protection module or Vigirex leakage relay.
    Q How should I place an order for the SJKM5 molded case circuit breaker?
    To place an order, please specify the product name and model number, rated current, number of poles, and minimum order quantity. For example, for a 3-pole SJKM5-100 type F with 100A rated current and 1000 units, the order should be written as: SJKM5-100F/3P, 100A, 1000 units.