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EPB6K Miniature Circuit Breaker (MCB)
MCB

EPB6K Miniature Circuit Breaker (MCB)

EPB6K series miniature circuit breaker is engineered for reliable circuit protection in commercial, industrial, and residential power distribution systems. Built in line with IEC/EN 60898 standards, it delivers stable performance against overload and short-circuit conditions, with a breaking capacity of 6kA.
Suitable for business buyers, distributors, contractors, and project clients, this model supports both bulk procurement and small trial orders. We provide full product certification, technical support, and flexible cooperation terms to meet your business demands.

    Product Details

    Product Descriprion

    EPB6K

    As a compact and durable MCB designed for business-to-business supply, EPB6K provides effective overcurrent and short-circuit protection for AC 50/60Hz power networks. It supports rated currents from 0.5A up to 63A, with voltage ratings of 230V/400V AC, and can be configured in 1-pole, 2-pole, 3-pole and 4-pole versions.

    Its thermal-magnetic tripping system offers B, C and D tripping curves to match different load types, including lighting circuits, power sockets, small machinery and control circuits. The unit operates steadily within a wide ambient temperature range and features strong mechanical and electrical endurance for long-term use.

    With standard DIN-rail installation and clear status indication, EPB6K is easy to assemble, inspect and maintain. We welcome wholesale orders, project orders and small-quantity test orders alike, and can provide customized packaging, labeling and documentation for your market needs.

    Application

    Standard

    Confirming to EN/IEC60898

    Breaking capacity

    6kA

    Protection

    Against overload and short circuit

    Rated current In

    0.5,1,2,3,4,6,10,13,16,20,25,32,40,50,63A

    Rated voltage

    1pole 230/400V AC 50/60Hz

    2,3,4pole 400V AC 50/60Hz

    Rated insulation voltage Ui:500V

    Rated impulse withstand voltage Uimp:6000V Energy limiting class:3

    Ambient temperature

    -5C to+40℃ pursuant to EN/IEC60898

    Characteristic

    Thermal operating limit:(1.13-1.45)×In

    Magnetic operating:B:(3-5)x In

    C:(5-10)×In

    D:(10-20)×In

    Number of poles

    1P,1P+N,2P,3P,3P+N and 4P

    Type of trip

    Thermal /magnetic release

    Type of terminal

    Lug type and Pin type

    Terminal capacity

    16mm² flexible or 25mm² rigid up to 25A ratings

    25mm² flexible or 35mm²rigid for 32A to 63A ratings

    Protection degree

    IP20

    Installation

    Mounting on 35mm DIN rail

    Width

    17.5mm per pole

    Curves

    EPB6

    Endurance(operations)

    Category

    Operations

    Operation frequency

    Rated current

    Electrical endurance

    4000

    240/h

    0.5~32

    120/h

    40~63

    Mechanical endurance

    10000

    240/h

    0.5~63

    Please refer to table below for temperature compensation correction

    In(A)

    Temperature compensation coefficient under various operational temperature

     

    -10℃

     

    0℃

    10℃

    20℃

    30℃

    40℃

    50℃

    55℃

    60℃

    1~6

    1.20

    1.14

    1.09

    1.05

    1.00

    0.96

    0.80

    0.75

    0.70

    10~32

    1.18

    1.12

    1.08

    1.04

    1.00

    0.96

    0.92

    0.88

    0.84

    40~63

    1.16

    1.12

    1.08

    1.03

    1.00

    0.9

    0.87

    0.83

    0.80

    Wiring

    The suitable conductors should be used for connection,see table for relative parameters.

    Rated current In(A)

    Nominal cross section area(mm²)

    Tightening torque (N.m)

    1~6

    1

    2

    10

    1.5

    2

    13,16,20

    2.5

    2

    25

    4

    2

    32

    6

    2

    40,50

    10

    2

    63

    16

    2

    Product display

    EPB6K-1P3
    EPB6K-2P2
    EPB6K-4P1
    EPB6K-4P1

    Features

    ✅Complies with IEC/EN 60898 standards for global market access

    ✅6kA breaking capacity with dependable tripping performance

    ✅B/C/D tripping curves available for different application scenarios

    ✅Compact size with standard DIN rail mounting for easy installation

    ✅Clear operation status indicator for safe on-site inspection

    ✅High mechanical and electrical lifespan for long service

    ✅Flexible order quantities: wholesale, bulk and trial orders accepted

    ✅Customizable labeling, packaging and export documentation

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