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E-T-A UL 1077 & UL 489 4230-T Miniature Circuit Breakers

The 4230 is a thermal-magnetic Miniature Circuit Breaker (MCB) in an industry standard footprint in accordance with DIN 43880. It can be used to protect motors, generators, and transformers, in addition to industrial control systems and machines.

  • In-Stock and Reay to Ship - the 4230-T is in stock and ready to ship to you directly from Master Electronics
  • Fit for Global Use - Do you install equipment globally? The 4230-T's conformity with UL1077, UL 489, and IEC 60947-2 standards, make it ideal for global use
  • Streamlined Inventory - Looking for ways to reduce inventory investment and complexity? You can use the 4230-T in both AC and DC applications.
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38 PRODUCT RESULTS FOR ""

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38 Products

    4230-T120-K0CE-5A
    Data Sheet
    4230-T120-K0CE-5A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 5A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077
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    In Stock: 63
    Can Ship immediately 
    MANUFACTURER STOCK 50
    Ships 10/19/26
    5
    $34.91
    10
    $28.14
    25
    $25.86
    50
    $23.97
    100
    $22.43
    4230-T120-K0CU-20A
    Data Sheet
    4230-T120-K0CU-20A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 20A - 2 Pole - Screw Terminals - UL489/IEC/EN60947-2(TÜV)
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    MANUFACTURER STOCK 16
    Ships 10/19/26
    1
    $47.79
    5
    $42.65
    10
    $41.37
    25
    $40.17
    50
    $37.97
    4230-T120-K0CU-25A
    Data Sheet
    4230-T120-K0CU-25A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 25A - 2 Pole - Screw Terminals - UL489/IEC/EN60947-2(TÜV)
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    In Stock: 1
    Can Ship immediately 
    MANUFACTURER STOCK 36
    Ships 10/19/26
    1
    $92.55
    5
    $58.55
    10
    $52.60
    25
    $48.64
    50
    $42.59
    4230-T120-K0CU-35A
    Data Sheet
    4230-T120-K0CU-35A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 35A - 2 Pole - Screw Terminals - UL489/IEC/EN60947-2(TÜV)
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    MANUFACTURER STOCK 35
    Ships 10/19/26
    1
    $47.79
    5
    $42.65
    10
    $41.37
    25
    $40.17
    50
    $37.97
    4230-T120-K0CU-5A
    Data Sheet
    4230-T120-K0CU-5A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 5A - 2 Pole - Screw Terminals - UL489/IEC/EN60947-2(TÜV)
    VIEW PRODUCT
    MANUFACTURER STOCK 182
    Ships 10/19/26
    1
    $47.79
    5
    $42.65
    10
    $41.37
    25
    $40.17
    50
    $37.97
    4230-T120-K0DE-10A
    Data Sheet
    4230-T120-K0DE-10A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 10A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077
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    In Stock: 51
    Can Ship immediately 
    MANUFACTURER STOCK 181
    Ships 10/19/26
    5
    $18.25
    10
    $17.76
    25
    $17.12
    50
    $16.63
    100
    $16.14
    4230-T130-K0CE-10A
    Data Sheet
    4230-T130-K0CE-10A E-T-A Engineering Technology
    Thermal-magnetic Circuit Breaker - DIN Mount - 10A - 3 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077
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    In Stock: 4
    Can Ship immediately 
    1
    $28.76
    5
    $26.94
    10
    $26.15
    25
    $25.12
    50
    $24.33
    4230-T130-K0CE-15A
    Data Sheet
    4230-T130-K0CE-15A E-T-A Engineering Technology
    The 4230-T130-K0CE-15A is a three-pole, 15A thermal-magnetic miniature circuit breaker for DIN rail mounting with ...
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    In Stock: 169
    Can Ship immediately 
    MANUFACTURER STOCK 40
    Ships 10/19/26
    1
    $72.03
    5
    $42.19
    10
    $36.75
    25
    $35.95
    50
    $31.07
    4230-T130-K0CE-30A
    Data Sheet
    4230-T130-K0CE-30A E-T-A Engineering Technology
    The 4230-T130-K0CE-30A is a three-pole, 30A thermal-magnetic miniature circuit breaker with a C trip characterist ...
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    In Stock: 81
    Can Ship immediately 
    1
    $63.83
    5
    $42.19
    10
    $36.75
    25
    $35.95
    50
    $31.07
    4230-T130-K0CE-35A
    Data Sheet
    4230-T130-K0CE-35A E-T-A Engineering Technology
    The 4230-T130-K0CE-35A is a three-pole, 35A thermal-magnetic miniature circuit breaker with a C-curve trip charac ...
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    In Stock: 46
    Can Ship immediately 
    On Order: 50
    Ships 12/31/26
    1
    $42.27
    5
    $33.90
    10
    $30.99
    25
    $30.76
    50
    $25.35