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, 6A

4230-T110-K0CE-6A
E-T-A
1: $17.18
18In Stock
27Expected 2026/09/04

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

Mouser Part No
457-4230T110K0CE6

E-T-A

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

Learn More

Datasheet

18In Stock

27Expected 2026/09/04

$17.18

$13.17

$12.22

$10.63

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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, 15A

4230-T110-K0CU-15A
E-T-A
1: $30.62
2In Stock
4Expected 2026/09/01

Mfr. Part No.
4230-T110-K0CU-15A

Mouser Part No
457-4230T110K0CU15

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 15A

Learn More

Datasheet

2In Stock

4Expected 2026/09/01

$30.62

$24.38

$22.50

$19.41

$18.00

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

15 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: $28.34
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

$28.34

$24.21

$22.40

$19.36

$18.00

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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, 30A

4230-T110-K0CU-30A
E-T-A
1: $25.53
2In Stock
12On Order

Mfr. Part No.
4230-T110-K0CU-30A

Mouser Part No
457-4230T110K0CU30

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 30A

Learn More

Datasheet

2In Stock

12On Order

$25.53

$22.02

$20.56

$18.00

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

30 A

240 VAC

80 VDC

1 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 4A

4230-T110-K0CU-4A
E-T-A
1: $33.27
4In Stock

Mfr. Part No.
4230-T110-K0CU-4A

Mouser Part No
457-4230T110K0CU4

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 4A

Learn More

Datasheet

4In Stock

$33.27

$29.66

$27.03

$24.46

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Toggle

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

4230-T110-K0CU-5A
E-T-A
1: $30.62
23In 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

23In Stock

$30.62

$25.40

$24.74

$19.41

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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

$14.26

$13.15

$10.90

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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, 15A

4230-T110-K0DE-15A
E-T-A
1: $18.49
2In Stock

Mfr. Part No.
4230-T110-K0DE-15A

Mouser Part No
457-4230T110K0DE15

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 15A

Learn More

Datasheet

2In Stock

$18.49

$11.80

$11.10

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Toggle

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 2A

4230-T110-K0DE-2A
E-T-A
1: $17.18
1In Stock

Mfr. Part No.
4230-T110-K0DE-2A

Mouser Part No
457-4230T110K0DE2

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, D, 2A

Learn More

Datasheet

1In Stock

$17.18

$12.68

$11.80

$10.63

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

2 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

$13.49

$12.18

$10.90

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $17.18
1In 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

1In Stock

$17.18

$14.26

$13.15

$10.90

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $29.35
18In Stock

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

18In Stock

$29.35

$24.84

$22.92

$18.61

$17.19

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $28.31
6In 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

6In Stock

$28.31

$23.06

$21.34

$17.95

$17.19

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

50 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

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

4230-T120-K0CE-15A
E-T-A
1: $29.35
Lead-Time 2 Weeks

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

Lead-Time 2 Weeks

$29.35

$23.32

$21.70

$18.61

$17.19

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $29.35
1In 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

1In Stock

$29.35

$23.12

$22.47

$18.61

$17.19

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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, 6A

4230-T120-K0CE-6A
E-T-A
1: $29.35
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T120-K0CE-6A

Mouser Part No
457-4230T120K0CE6

E-T-A

Circuit Breakers 1077, 2P, DM, 480VAC/60VDC, C, 6A

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

$29.35

$24.35

$22.47

$18.61

$17.19

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Toggle

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

4230-T120-K0CE-8A
E-T-A
1: $31.39
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

$31.39

$28.97

$22.29

$21.34

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Toggle

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

4230-T120-K0CU-10A
E-T-A
1: $62.72
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

$62.72

$55.17

$50.89

$39.72

$39.61

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $55.54
19In 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

19In Stock

$55.54

$47.53

$44.29

$39.72

$39.61

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $66.50
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

$66.50

$54.68

$52.28

$48.04

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Toggle

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

4230-T120-K0DE-10A
E-T-A
1: $29.19
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

$29.19

$23.09

$21.39

$18.47

$17.19

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

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: $66.50
6In 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

6In Stock

$66.50

$55.98

$47.50

$40.76

$39.61

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

10 A

480 VAC

60 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

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

4230-T120-K0DU-15A
E-T-A
1: $62.72
5In Stock

Mfr. Part No.
4230-T120-K0DU-15A

Mouser Part No
457-4230T120K0DU15

E-T-A

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

Learn More

Datasheet

5In Stock

$62.72

$50.35

$46.69

$39.72

$39.61

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

15 A

415 VAC

125 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 2P, DM, 480VAC/60VDC,D, 20A

4230-T120-K0DU-20A
E-T-A
1: $66.48
5In Stock

Mfr. Part No.
4230-T120-K0DU-20A

Mouser Part No
457-4230T120K0DU20

E-T-A

Circuit Breakers 489, 2P, DM, 480VAC/60VDC,D, 20A

Learn More

Datasheet

5In Stock

$66.48

$55.15

$47.50

$40.76

$39.61

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

20 A

480 VAC

60 VDC

2 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 10A

4230-T130-K0CE-10A
E-T-A
1: $38.31
22In Stock
41Expected 2026/11/30

Mfr. Part No.
4230-T130-K0CE-10A

Mouser Part No
457-4230T130K0CE10

E-T-A

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 10A

Learn More

Datasheet

22In Stock

41Expected 2026/11/30

$38.31

$34.02

$31.38

$25.98

$24.83

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

10 A

415 VAC

3 Pole

Toggle

- 35 C

+ 70 C

Non-Illuminated

4230-T Thermal-Magnetic Miniature Circuit Breakers

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