Circuit Breakers – Mouser United Kingdom

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UL (AC) & DL (DC) Circuit Breakers

Altech UL (AC) and DL (DC) Circuit Breakers are available in both AC and DC models and offer 10kA short-circuit interrupting capacity. These thermal magnetic modules feature a 17.5mm width, a miniature size, and DIN-rail mounting. The series has a 0.3 to 63A current range and 6000 switching cycles of electrical life. Applications for Altech UL (AC) and DL (DC) Circuit Breakers include lighting, wiring protection, appliances, transformers, and telecommunication.

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Part #

Circuit Breakers 63A, D CHAR, 1POLE 240VAC, UL489

1D63UL
Altech
1: £26.80
5In Stock

Mfr. Part No.
1D63UL

Mouser Part No
845-1D63UL

Altech

Circuit Breakers 63A, D CHAR, 1POLE 240VAC, UL489

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Datasheet

5In Stock

£26.80

£26.67

£25.98

£25.28

View

Min.: 1
Mult.: 1

63 A

240 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12A, C CHAR, 2POLE 480Y/277VAC,UL489

2C12UL
Altech
1: £64.26
28In Stock

Mfr. Part No.
2C12UL

Mouser Part No
845-2C12UL

Altech

Circuit Breakers 12A, C CHAR, 2POLE 480Y/277VAC,UL489

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Datasheet

28In Stock

£64.26

£56.28

£53.18

£47.19

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

12 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A, C CHAR, 2POLE 480Y/277VAC,UL489

2C4UL
Altech
1: £67.47
26In Stock

Mfr. Part No.
2C4UL

Mouser Part No
845-2C4UL

Altech

Circuit Breakers 4A, C CHAR, 2POLE 480Y/277VAC,UL489

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Datasheet

26In Stock

£67.47

£58.00

£54.95

£48.27

View

Min.: 1
Mult.: 1

4 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1.6A, C CHAR, 1POLE 277VAC, UL489

1C1.6UL
Altech
1: £35.23
5In Stock

Mfr. Part No.
1C1.6UL

Mouser Part No
845-1C1.6UL

Altech

Circuit Breakers 1.6A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

5In Stock

£35.23

£30.21

£24.73

£23.11

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

1.6 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A, C CHAR, 1POLE 277VAC, UL489

1C10UL
Altech
1: £25.18
46In Stock
52Expected 11/09/2026

Mfr. Part No.
1C10UL

Mouser Part No
845-1C10UL

Altech

Circuit Breakers 10A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

46In Stock

52Expected 11/09/2026

£25.18

£24.17

£23.91

£22.11

View

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A, C CHAR, 1POLE 277VAC, UL489

1C15UL
Altech
1: £25.18
32In Stock
40Expected 01/01/2027

Mfr. Part No.
1C15UL

Mouser Part No
845-1C15UL

Altech

Circuit Breakers 15A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

32In Stock

40Expected 01/01/2027

£25.18

£23.30

£22.63

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

15 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A, C CHAR, 1POLE 277VAC, UL489

1C16UL
Altech
1: £35.23
3In Stock

Mfr. Part No.
1C16UL

Mouser Part No
845-1C16UL

Altech

Circuit Breakers 16A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

3In Stock

£35.23

£25.18

£24.36

£23.59

View

Min.: 1
Mult.: 1

16 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A, C CHAR, 1POLE 277VAC, UL489

1C20UL
Altech
1: £25.18
4In Stock
8Expected 18/12/2026

Mfr. Part No.
1C20UL

Mouser Part No
845-1C20UL

Altech

Circuit Breakers 20A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

4In Stock

8Expected 18/12/2026

£25.18

£24.99

£23.57

£22.84

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A, C CHAR, 1POLE 277VAC, UL489

1C25UL
Altech
1: £33.87
7In Stock

Mfr. Part No.
1C25UL

Mouser Part No
845-1C25UL

Altech

Circuit Breakers 25A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

7In Stock

£33.87

£29.82

£25.18

£23.89

View

Min.: 1
Mult.: 1

25 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A, C CHAR, 1POLE 277VAC, UL489

1C32UL
Altech
1: £35.23
4In Stock

Mfr. Part No.
1C32UL

Mouser Part No
845-1C32UL

Altech

Circuit Breakers 32A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

4In Stock

£35.23

£25.18

£23.98

£23.23

View

Min.: 1
Mult.: 1

32 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A, C CHAR, 1POLE 277VAC, UL489

1C4UL
Altech
1: £25.18
14In Stock

Mfr. Part No.
1C4UL

Mouser Part No
845-1C4UL

Altech

Circuit Breakers 4A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

14In Stock

£25.18

£24.78

£24.05

£23.33

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

4 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A, C CHAR, 1POLE 277VAC, UL489

1C5UL
Altech
1: £25.18
4In Stock
26On Order

Mfr. Part No.
1C5UL

Mouser Part No
845-1C5UL

Altech

Circuit Breakers 5A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

4In Stock

26On Order

£25.18

£24.57

£23.91

£23.26

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

5 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A, D CHAR, 1POLE 277VAC, UL489

1D10UL
Altech
1: £25.18
10In Stock
21Expected 11/01/2027

Mfr. Part No.
1D10UL

Mouser Part No
845-1D10UL

Altech

Circuit Breakers 10A, D CHAR, 1POLE 277VAC, UL489

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Datasheet

10In Stock

21Expected 11/01/2027

£25.18

£23.47

£22.85

£22.33

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

10 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489

1D20UL
Altech
1: £32.56
5In Stock

Mfr. Part No.
1D20UL

Mouser Part No
845-1D20UL

Altech

Circuit Breakers 20A, D CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

5In Stock

£32.56

£29.01

£25.18

£24.14

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A, D CHAR, 1POLE 277VAC, UL489

1D5UL
Altech
1: £25.18
1In Stock

Mfr. Part No.
1D5UL

Mouser Part No
845-1D5UL

Altech

Circuit Breakers 5A, D CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

1In Stock

£25.18

£24.02

£23.48

£22.95

View

Min.: 1
Mult.: 1

5 A

277 VAC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2C13UL, 13A, CIRCUIT BREAKER

2C13UL
Altech
1: £67.47
6In Stock
7Expected 18/12/2026

Mfr. Part No.
2C13UL

Mouser Part No
845-2C13UL

Altech

Circuit Breakers 2C13UL, 13A, CIRCUIT BREAKER

Learn More

Datasheet

6In Stock

7Expected 18/12/2026

£67.47

£58.00

£50.34

£47.68

View

Min.: 1
Mult.: 1

13 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A, C CHAR, 2POLE 480Y/277VAC,UL489

2C15UL
Altech
1: £67.47
15In Stock

Mfr. Part No.
2C15UL

Mouser Part No
845-2C15UL

Altech

Circuit Breakers 15A, C CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

15In Stock

£67.47

£58.00

£54.96

£46.42

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

15 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A, C CHAR, 2POLE 480Y/277VAC,UL489

2C32UL
Altech
1: £73.66
2In Stock

Mfr. Part No.
2C32UL

Mouser Part No
845-2C32UL

Altech

Circuit Breakers 32A, C CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

2In Stock

£73.66

£50.34

£49.22

£47.74

View

Min.: 1
Mult.: 1

32 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A, C CHAR, 2POLE 480Y/277VAC,UL489

2C3UL
Altech
1: £50.34
2In Stock
5Expected 18/01/2027

Mfr. Part No.
2C3UL

Mouser Part No
845-2C3UL

Altech

Circuit Breakers 3A, C CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

2In Stock

5Expected 18/01/2027

£50.34

£50.19

£48.86

View

Min.: 1
Mult.: 1

3 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A, C CHAR, 2POLE 480Y/277VAC,UL489

2C5UL
Altech
1: £50.34
4In Stock

Mfr. Part No.
2C5UL

Mouser Part No
845-2C5UL

Altech

Circuit Breakers 5A, C CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

4In Stock

£50.34

£49.11

£47.40

£44.28

View

Min.: 1
Mult.: 1

5 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489

2D03UL
Altech
1: £67.47
6In Stock

Mfr. Part No.
2D03UL

Mouser Part No
845-2D03UL

Altech

Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

6In Stock

£67.47

£58.00

£50.01

£46.89

View

Min.: 1
Mult.: 1

300 mA

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 0.5A, D CHAR, 2POLE 480Y/277VAC,UL489

2D05UL
Altech
1: £67.06
5In Stock

Mfr. Part No.
2D05UL

Mouser Part No
845-2D05UL

Altech

Circuit Breakers 0.5A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

5In Stock

£67.06

£56.88

£50.34

£50.23

View

Min.: 1
Mult.: 1

500 mA

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A, D CHAR, 2POLE 480Y/277VAC,UL489

2D20UL
Altech
1: £60.49
14In Stock

Mfr. Part No.
2D20UL

Mouser Part No
845-2D20UL

Altech

Circuit Breakers 20A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

14In Stock

£60.49

£54.22

£51.72

£47.67

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

20 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A, D CHAR, 2POLE 480Y/277VAC,UL489

2D4UL
Altech
1: £50.34
6In Stock

Mfr. Part No.
2D4UL

Mouser Part No
845-2D4UL

Altech

Circuit Breakers 4A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

6In Stock

£50.34

£49.32

£48.06

View

Min.: 1
Mult.: 1

4 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 8A, D CHAR, 2POLE 480Y/277VAC,UL489

2D8UL
Altech
1: £50.34
19In Stock

Mfr. Part No.
2D8UL

Mouser Part No
845-2D8UL

Altech

Circuit Breakers 8A, D CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

19In Stock

£50.34

£47.81

£44.68

View

Min.: 1
Mult.: 1

8 A

277 VAC

2 Pole

- 25 C

+ 55 C

Non-Illuminated

UL (AC) & DL (DC) Circuit Breakers

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300 mA
500 mA
1 A
1.6 A
2 A
3 A
4 A
5 A
6 A
8 A
10 A
12 A
13 A
15 A
16 A
20 A
25 A
30 A
32 A
40 A