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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 results Products
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4230-T110-K0CU-30A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 30A - 1 Pole - Screw Terminals - UL489/IEC/EN60947-2(TÜV)

  • In Stock: 3

    Ships Immediately

  • 1
    $33.209
  • 5
    $30.190
  • 10
    $27.570
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4230-T110-K0DE-40A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 40A - 1 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • 16 Weeks
  • 5
    $10.86
  • 25
    $9.84
  • 50
    $9.40
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4230-T110-K0DE-50A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 50A - 1 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • MANUFACTURER STOCK 144

    can ship 6/15/26

  • 5
    $10.86
  • 25
    $9.84
  • 50
    $9.40
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4230-T110-K0DE-6A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 6A - 1 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • MANUFACTURER STOCK 211

    can ship 6/15/26

  • 5
    $10.86
  • 25
    $9.84
  • 50
    $9.40
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4230-T120-K0BE-50A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 50A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • In Stock: 79

    Ships Immediately

  • MANUFACTURER STOCK 105

    can ship 6/15/26

  • 5
    $23.40
  • 10
    $21.59
  • 25
    $21.24
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4230-T120-K0CE-10A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 10A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • In Stock: 333

    Ships Immediately

  • MANUFACTURER STOCK 680

    can ship 6/15/26

  • 5
    $20.73
  • 10
    $19.21
  • 25
    $19.02
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4230-T120-K0CE-15A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 15A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • In Stock: 55

    Ships Immediately

  • MANUFACTURER STOCK 210

    can ship 6/15/26

  • 5
    $18.86
  • 10
    $18.52
  • 25
    $18.04
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4230-T120-K0CE-20A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 20A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • In Stock: 119

    Ships Immediately

  • 5
    $18.31
  • 10
    $17.46
  • 25
    $16.94
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4230-T120-K0CE-25A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 25A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • In Stock: 3

    Ships Immediately

  • 1
    $15.543
  • 5
    $14.130
  • 10
    $13.790
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4230-T120-K0CE-35A
E-T-A Engineering Technology

Thermal-magnetic Circuit Breaker - DIN Mount - 35A - 2 Pole - Screw Terminals - IEC/EN 60947-2(TÜV)/UL1077

  • 16 Weeks
  • 5
    $18.31
  • 10
    $17.46
  • 25
    $16.94
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