Circuit Breakers – Mouser Hong Kong

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

4230-T120-K0BU-4A
E-T-A
1: HK$546.55
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

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Datasheet

1In Stock

HK$546.55

HK$449.47

HK$429.66

HK$394.81

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

4 A

415 VAC

125 VDC

2 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T120-K0CE-15A
E-T-A
1: HK$241.26
195On Order

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

Mouser Part No
457-4230T120K0CE15

E-T-A

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

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Datasheet

195On Order

HK$241.26

HK$191.61

HK$178.37

HK$152.97

HK$141.30

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

15 A

415 VAC

125 VDC

2 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T110-K0BE-5A
E-T-A
1: HK$151.99
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BE-5A

Mouser Part No
457-4230T110K0BE5

E-T-A

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

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Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$151.99

HK$146.56

HK$126.26

HK$114.75

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

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

4230-T110-K0CE-20A
E-T-A
1: HK$141.22
16Expected 8/9/2026

Mfr. Part No.
4230-T110-K0CE-20A

Mouser Part No
457-4230T110K0CE20

E-T-A

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

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Datasheet

16Expected 8/9/2026

HK$141.22

HK$117.14

HK$108.09

HK$89.60

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 40A

4230-T110-K0CE-40A
E-T-A
1: HK$151.99
10Expected 8/9/2026

Mfr. Part No.
4230-T110-K0CE-40A

Mouser Part No
457-4230T110K0CE40

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, C, 40A

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Datasheet

10Expected 8/9/2026

HK$151.99

HK$147.38

HK$139.66

HK$111.55

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

40 A

240 VAC

80 VDC

1 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T110-K0CU-10A
E-T-A
1: HK$251.70
7Expected 31/8/2026

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

Mouser Part No
457-4230T110K0CU10

E-T-A

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

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Datasheet

7Expected 31/8/2026

HK$251.70

HK$208.79

HK$159.55

HK$157.00

HK$147.96

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

10 A

240 VAC

80 VDC

1 Pole

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 6A

4230-T110-K0CU-6A
E-T-A
1: HK$232.63
2Expected 7/9/2026

Mfr. Part No.
4230-T110-K0CU-6A

Mouser Part No
457-4230T110K0CU6

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, C, 6A

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Datasheet

2Expected 7/9/2026

HK$232.63

HK$198.68

HK$183.80

HK$158.73

HK$147.96

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

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

4230-T120-K0DU-10A
E-T-A
1: HK$543.51
9Expected 18/9/2026

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

Mouser Part No
457-4230T120K0DU10

E-T-A

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

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Datasheet

9Expected 18/9/2026

HK$543.51

HK$459.99

HK$390.37

HK$335.05

HK$325.51

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

10 A

480 VAC

60 VDC

2 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T130-K0BE-10A
E-T-A
1: HK$323.46
10Expected 7/9/2026

Mfr. Part No.
4230-T130-K0BE-10A

Mouser Part No
457-4230T130K0BE10

E-T-A

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

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Datasheet

10Expected 7/9/2026

HK$323.46

HK$294.93

HK$280.71

HK$260.74

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 30A

4230-T130-K0CE-30A
E-T-A
1: HK$304.96
17Expected 9/10/2026

Mfr. Part No.
4230-T130-K0CE-30A

Mouser Part No
457-4230T130K0CE30

E-T-A

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 30A

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Datasheet

17Expected 9/10/2026

HK$304.96

HK$264.19

HK$244.71

HK$217.01

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 35A

4230-T130-K0CE-35A
E-T-A
1: HK$354.28
20Expected 9/10/2026

Mfr. Part No.
4230-T130-K0CE-35A

Mouser Part No
457-4230T130K0CE35

E-T-A

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 35A

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Datasheet

20Expected 9/10/2026

HK$354.28

HK$289.59

HK$265.26

HK$220.71

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 1.2A

4230-T110-K0BE-1.2A
E-T-A
1: HK$141.14
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
4230-T110-K0BE-1.2A

Mouser Part No
457-4230T110K0BE1.2

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 1.2A

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

HK$141.14

HK$119.52

HK$113.03

HK$106.61

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

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

4230-T110-K0BE-25A
E-T-A
1: HK$148.86
3Expected 18/9/2026

Mfr. Part No.
4230-T110-K0BE-25A

Mouser Part No
457-4230T110K0BE25

E-T-A

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

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Datasheet

3Expected 18/9/2026

HK$148.86

HK$114.18

HK$104.48

HK$93.71

HK$91.08

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 8A

4230-T110-K0BE-8A
E-T-A
1: HK$148.95
Non-Stocked Lead-Time 16 Weeks

Mfr. Part No.
4230-T110-K0BE-8A

Mouser Part No
457-4230T110K0BE8

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 8A

Learn More

Datasheet

Non-Stocked Lead-Time 16 Weeks

HK$148.95

HK$144.34

HK$123.96

HK$115.33

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

8 A

240 VAC

80 VDC

1 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T120-K0BE-6A
E-T-A
1: HK$254.33
4Expected 21/9/2026

Mfr. Part No.
4230-T120-K0BE-6A

Mouser Part No
457-4230T120K0BE6

E-T-A

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

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Datasheet

4Expected 21/9/2026

HK$254.33

HK$209.61

HK$199.58

HK$183.63

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 63A

4230-T130-K0CE-63A
E-T-A
1: HK$325.59
1Expected 5/10/2026

Mfr. Part No.
4230-T130-K0CE-63A

Mouser Part No
457-4230T130K0CE63

E-T-A

Circuit Breakers 1077, 3P, DM, 480VAC/60VDC, C, 63A

Learn More

Datasheet

1Expected 5/10/2026

HK$325.59

HK$305.95

HK$284.08

HK$265.01

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 1.5A

4230-T110-K0BE-1.5A
E-T-A
1: HK$144.10
Non-Stocked Lead-Time 27 Weeks

Mfr. Part No.
4230-T110-K0BE-1.5A

Mouser Part No
457-4230T110K0BE1.5

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 1.5A

Learn More

Datasheet

Non-Stocked Lead-Time 27 Weeks

HK$144.10

HK$119.19

HK$112.53

HK$105.38

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 16A

4230-T110-K0BE-16A
E-T-A
1: HK$141.22
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BE-16A

Mouser Part No
457-4230T110K0BE16

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 16A

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$141.22

HK$114.34

HK$105.54

HK$89.60

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

16 A

240 VAC

80 VDC

1 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T110-K0BE-2A
E-T-A
1: HK$141.22
Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BE-2A

Mouser Part No
457-4230T110K0BE2

E-T-A

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

Learn More

Datasheet

Lead-Time 2 Weeks

HK$141.22

HK$111.55

HK$103.16

HK$89.60

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

2 A

240 VAC

80 VDC

1 Pole

- 35 C

+ 70 C

Non-Illuminated

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 3A

4230-T110-K0BE-3A
E-T-A
1: HK$148.95
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BE-3A

Mouser Part No
457-4230T110K0BE3

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 3A

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$148.95

HK$141.88

HK$122.15

HK$108.75

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 30A

4230-T110-K0BE-30A
E-T-A
1: HK$141.22
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BE-30A

Mouser Part No
457-4230T110K0BE30

E-T-A

Circuit Breakers 1077, 1P, DM, 277VAC/60VDC, B, 30A

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$141.22

HK$113.35

HK$103.74

HK$89.60

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

30 A

240 VAC

80 VDC

1 Pole

- 35 C

+ 70 C

Non-Illuminated

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

4230-T110-K0BU-15A
E-T-A
1: HK$238.71
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BU-15A

Mouser Part No
457-4230T110K0BU15

E-T-A

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

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$238.71

HK$217.75

HK$207.39

HK$192.51

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, B, 2A

4230-T110-K0BU-2A
E-T-A
1: HK$241.26
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BU-2A

Mouser Part No
457-4230T110K0BU2

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, B, 2A

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$241.26

HK$225.89

HK$212.82

HK$202.29

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

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

4230-T110-K0BU-5A
E-T-A
1: HK$231.97
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BU-5A

Mouser Part No
457-4230T110K0BU5

E-T-A

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

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$231.97

HK$213.64

HK$203.61

HK$191.12

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, B, 6A

4230-T110-K0BU-6A
E-T-A
1: HK$231.97
Non-Stocked Lead-Time 2 Weeks

Mfr. Part No.
4230-T110-K0BU-6A

Mouser Part No
457-4230T110K0BU6

E-T-A

Circuit Breakers 489, 1P, DM, 277VAC/60VDC, B, 6A

Learn More

Datasheet

Non-Stocked Lead-Time 2 Weeks

HK$231.97

HK$213.64

HK$203.61

HK$191.12

View

Min.: 1
Mult.: 1

4230-T

Miniature Circuit Breakers

Thermal Magnetic

4230-T Thermal-Magnetic Miniature Circuit Breakers

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