Circuit Breakers – Mouser South Africa

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4230-T Thermal-Magnetic Miniature Circuit Breakers

E-T-A Circuit Breakers 4230-T Thermal-Magnetic Miniature Circuit Breakers (MCBs) are single-pole and multi-pole circuit breakers for DIN rail mounting with toggle actuation, visual status indication, and high rupture capacity. A positively trip-free snap action mechanism ensures reliable switching behavior. A range of trip characteristics and add-on modules make the 4230-T suitable for a variety of applications. The ETA MCBs are rated IP20 and are in accordance with EN 60947-2, UL 1077, and UL 489. E-T-A Circuit Breakers 4230-T Thermal-Magnetic MCBs are ideal for the protection of cables, motors, generators and transformers, thyristors and silicon rectifiers. The components also offer protection for computers and their peripheral equipment, industrial process control systems, telecommunications equipment, and power supplies.

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Part #

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 25A

4230-T110-K0CE-25A
E-T-A
1: $17.10
4In Stock

Mfr. Part No.
4230-T110-K0CE-25A

Mouser Part No
457-4230T110K0CE25

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 25A

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Datasheet

4In Stock

$17.10

$12.27

$12.26

$12.18

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

Toggle

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 5A

4230-T110-K0CE-5A
E-T-A
1: $17.18
40In Stock

Mfr. Part No.
4230-T110-K0CE-5A

Mouser Part No
457-4230T110K0CE5

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 5A

Learn More

Datasheet

40In Stock

$17.18

$12.22

$11.35

$10.09

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

5 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 50A

4230-T110-K0CE-50A
E-T-A
1: $13.20
24In Stock
26Expected 2026/03/03

Mfr. Part No.
4230-T110-K0CE-50A

Mouser Part No
457-4230T110K0CE50

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 50A

Learn More

Datasheet

24In Stock

26Expected 2026/03/03

$13.20

$12.76

$11.90

$11.53

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

50 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 6A

4230-T110-K0CE-6A
E-T-A
1: $17.18
72In Stock

Mfr. Part No.
4230-T110-K0CE-6A

Mouser Part No
457-4230T110K0CE6

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 6A

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Datasheet

72In Stock

$17.18

$14.24

$13.15

$11.12

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

6 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 10A

4230-T110-K0CU-10A
E-T-A
1: $30.62
16In Stock

Mfr. Part No.
4230-T110-K0CU-10A

Mouser Part No
457-4230T110K0CU10

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 10A

Learn More

Datasheet

16In Stock

$30.62

$30.48

$26.57

$19.41

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

10 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 20A

4230-T110-K0CU-20A
E-T-A
1: $30.62
4In Stock

Mfr. Part No.
4230-T110-K0CU-20A

Mouser Part No
457-4230T110K0CU20

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 20A

Learn More

Datasheet

4In Stock

$30.62

$25.40

$23.43

$19.41

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

20 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 3A

4230-T110-K0CU-3A
E-T-A
1: $29.54
5In Stock

Mfr. Part No.
4230-T110-K0CU-3A

Mouser Part No
457-4230T110K0CU3

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 3A

Learn More

Datasheet

5In Stock

$29.54

$25.40

$22.90

$19.29

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

3 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 5A

4230-T110-K0CU-5A
E-T-A
1: $30.61
31In Stock

Mfr. Part No.
4230-T110-K0CU-5A

Mouser Part No
457-4230T110K0CU5

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 5A

Learn More

Datasheet

31In Stock

$30.61

$25.40

$22.74

$19.26

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

5 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 1A

4230-T110-K0DE-1A
E-T-A
1: $17.18
4In Stock

Mfr. Part No.
4230-T110-K0DE-1A

Mouser Part No
457-4230T110K0DE1

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 1A

Learn More

Datasheet

4In Stock

$17.18

$13.68

$12.82

$10.82

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

1 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 20A

4230-T110-K0DE-20A
E-T-A
1: $17.18
5In Stock

Mfr. Part No.
4230-T110-K0DE-20A

Mouser Part No
457-4230T110K0DE20

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 20A

Learn More

Datasheet

5In Stock

$17.18

$14.26

$12.10

$10.43

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

20 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 6A

4230-T110-K0DE-6A
E-T-A
1: $14.47
7In Stock

Mfr. Part No.
4230-T110-K0DE-6A

Mouser Part No
457-4230T110K0DE6

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 6A

Learn More

Datasheet

7In Stock

$14.47

$14.18

$13.11

$10.90

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

6 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 20A

4230-T120-K0BE-20A
E-T-A
1: $22.99
1In Stock
7Expected 2026/06/23

Mfr. Part No.
4230-T120-K0BE-20A

Mouser Part No
457-4230T120K0BE20

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 20A

Learn More

Datasheet

1In Stock

7Expected 2026/06/23

$22.99

$20.11

$16.26

$15.68

$14.76

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

20 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 50A

4230-T120-K0BE-50A
E-T-A
1: $23.77
2In Stock

Mfr. Part No.
4230-T120-K0BE-50A

Mouser Part No
457-4230T120K0BE50

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, B, 50A

Learn More

Datasheet

2In Stock

$23.77

$23.47

$20.92

$16.34

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

50 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, B, 4A

4230-T120-K0BU-4A
E-T-A
1: $48.81
1In Stock

Mfr. Part No.
4230-T120-K0BU-4A

Mouser Part No
457-4230T120K0BU4

E-T-A

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, B, 4A

Learn More

Datasheet

1In Stock

$48.81

$47.33

$45.82

$44.10

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

4 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 1A

4230-T120-K0CE-1A
E-T-A
1: $29.23
8In Stock

Mfr. Part No.
4230-T120-K0CE-1A

Mouser Part No
457-4230T120K0CE1

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 1A

Learn More

Datasheet

8In Stock

$29.23

$24.68

$24.14

$23.96

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

Toggle

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 15A

4230-T120-K0CE-15A
E-T-A
1: $28.33
79In Stock

Mfr. Part No.
4230-T120-K0CE-15A

Mouser Part No
457-4230T120K0CE15

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 15A

Learn More

Datasheet

79In Stock

$28.33

$24.35

$22.36

$18.42

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

15 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 2A

4230-T120-K0CE-2A
E-T-A
1: $24.18
11In Stock

Mfr. Part No.
4230-T120-K0CE-2A

Mouser Part No
457-4230T120K0CE2

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 2A

Learn More

Datasheet

11In Stock

$24.18

$21.89

$17.72

$16.26

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

2 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 7A

4230-T120-K0CE-7A
E-T-A
1: $25.89
3In Stock

Mfr. Part No.
4230-T120-K0CE-7A

Mouser Part No
457-4230T120K0CE7

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 7A

Learn More

Datasheet

3In Stock

$25.89

$22.74

$20.61

$17.46

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

7 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 8A

4230-T120-K0CE-8A
E-T-A
1: $38.32
11In Stock

Mfr. Part No.
4230-T120-K0CE-8A

Mouser Part No
457-4230T120K0CE8

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 8A

Learn More

Datasheet

11In Stock

$38.32

$38.20

$29.82

$28.76

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

Toggle

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, C, 10A

4230-T120-K0CU-10A
E-T-A
1: $53.58
10In Stock

Mfr. Part No.
4230-T120-K0CU-10A

Mouser Part No
457-4230T120K0CU10

E-T-A

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, C, 10A

Learn More

Datasheet

10In Stock

$53.58

$44.23

$41.33

$36.19

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

10 A

480 VAC

60 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, C, 15A

4230-T120-K0CU-15A
E-T-A
1: $62.73
17In Stock

Mfr. Part No.
4230-T120-K0CU-15A

Mouser Part No
457-4230T120K0CU15

E-T-A

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, C, 15A

Learn More

Datasheet

17In Stock

$62.73

$52.04

$48.00

$39.73

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

15 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, C, 4A

4230-T120-K0CU-4A
E-T-A
1: $62.85
1In Stock

Mfr. Part No.
4230-T120-K0CU-4A

Mouser Part No
457-4230T120K0CU4

E-T-A

Circuit Breakers 489, 2P, DM, 480VAC/60VDC, C, 4A

Learn More

Datasheet

1In Stock

$62.85

$55.17

$50.92

$49.64

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

Toggle

Circuit Breakers 489, 2P, DM, 240VAC/60VDC, C, 63A

4230-T120-K0CU-63A
E-T-A
1: $58.84
2In Stock

Mfr. Part No.
4230-T120-K0CU-63A

Mouser Part No
457-4230T120K0CU63

E-T-A

Circuit Breakers 489, 2P, DM, 240VAC/60VDC, C, 63A

Learn More

Datasheet

2In Stock

$58.84

$46.74

$43.48

$38.52

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

63 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, D, 10A

4230-T120-K0DE-10A
E-T-A
1: $23.17
27In Stock

Mfr. Part No.
4230-T120-K0DE-10A

Mouser Part No
457-4230T120K0DE10

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, D, 10A

Learn More

Datasheet

27In Stock

$23.17

$20.85

$18.83

$15.76

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

10 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 2P, DM, 480VAC/60VDC,D, 10A

4230-T120-K0DU-10A
E-T-A
1: $62.71
15In Stock

Mfr. Part No.
4230-T120-K0DU-10A

Mouser Part No
457-4230T120K0DU10

E-T-A

Circuit Breakers 489, 2P, DM, 480VAC/60VDC,D, 10A

Learn More

Datasheet

15In Stock

$62.71

$52.03

$47.99

$39.72

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breaker

Thermal-Magnetic

10 A

480 VAC

60 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

4230-T Thermal-Magnetic Miniature Circuit Breakers

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