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

1C10UL
Altech
1: £25.18
97In Stock

Mfr. Part No.
1C10UL

Mouser Part No
845-1C10UL

Altech

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

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Datasheet

97In Stock

£25.18

£24.76

£22.91

£22.10

View

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C15UL
Altech
1: £25.18
71In Stock

Mfr. Part No.
1C15UL

Mouser Part No
845-1C15UL

Altech

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

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Datasheet

71In Stock

£25.18

£23.30

£22.63

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

15 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C4UL
Altech
1: £69.34
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

£69.34

£62.55

£54.96

£48.37

View

Min.: 1
Mult.: 1

4 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

1C03UL
Altech
1: £35.23
6In Stock

Mfr. Part No.
1C03UL

Mouser Part No
845-1C03UL

Altech

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

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Datasheet

6In Stock

£35.23

£30.21

£25.18

£25.07

View

Min.: 1
Mult.: 1

300 mA

277 VAC

1 Pole

Handle

- 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

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C16UL
Altech
1: £37.11
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

£37.11

£28.24

£26.22

£24.36

View

Min.: 1
Mult.: 1

16 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C20UL
Altech
1: £31.45
4In Stock
8Expected 18/12/2026

Mfr. Part No.
1C20UL

Mouser Part No
845-1C20UL

Altech

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

Learn More

Datasheet

4In Stock

8Expected 18/12/2026

£31.45

£25.18

£24.98

£23.48

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

Handle

- 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

Learn More

Datasheet

7In Stock

£33.87

£29.82

£25.18

£23.89

View

Min.: 1
Mult.: 1

25 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2A, C CHAR, 1POLE 277VAC, UL489

1C2UL
Altech
1: £35.23
34In Stock
18Expected 25/01/2027

Mfr. Part No.
1C2UL

Mouser Part No
845-1C2UL

Altech

Circuit Breakers 2A, C CHAR, 1POLE 277VAC, UL489

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Datasheet

34In Stock

18Expected 25/01/2027

£35.23

£30.21

£28.40

£24.37

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

2 A

277 VAC

1 Pole

Handle

- 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

Learn More

Datasheet

4In Stock

£35.23

£25.18

£23.98

£23.23

View

Min.: 1
Mult.: 1

32 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C4UL
Altech
1: £25.18
13In Stock

Mfr. Part No.
1C4UL

Mouser Part No
845-1C4UL

Altech

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

Learn More

Datasheet

13In Stock

£25.18

£24.78

£24.05

£23.33

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

4 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C5UL
Altech
1: £25.18
13In Stock
15Expected 01/01/2027

Mfr. Part No.
1C5UL

Mouser Part No
845-1C5UL

Altech

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

Learn More

Datasheet

13In Stock

15Expected 01/01/2027

£25.18

£24.57

£23.91

£23.26

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

5 A

277 VAC

1 Pole

Handle

- 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

Learn More

Datasheet

10In Stock

21Expected 11/01/2027

£25.18

£22.58

£22.06

£21.59

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D20UL
Altech
1: £34.34
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

£34.34

£29.49

£26.16

£24.14

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D25UL
Altech
1: £37.11
5In Stock

Mfr. Part No.
1D25UL

Mouser Part No
845-1D25UL

Altech

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

Learn More

Datasheet

5In Stock

£37.11

£30.78

£26.49

£24.50

View

Min.: 1
Mult.: 1

25 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2A, D CHAR, 1POLE 277VAC, UL489

1D2UL
Altech
1: £30.63
7In Stock

Mfr. Part No.
1D2UL

Mouser Part No
845-1D2UL

Altech

Circuit Breakers 2A, D CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

7In Stock

£30.63

£27.46

£24.76

£23.49

View

Min.: 1
Mult.: 1

2 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

Learn More

Datasheet

5In Stock

£26.80

£26.67

£25.98

£25.28

View

Min.: 1
Mult.: 1

63 A

240 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A, C CHAR, 2POLE 480Y/277VAC,UL489

2C10UL
Altech
1: £50.34
12In Stock
63On Order

Mfr. Part No.
2C10UL

Mouser Part No
845-2C10UL

Altech

Circuit Breakers 10A, C CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

12In Stock

63On Order

£50.34

£47.81

£46.12

View

Min.: 1
Mult.: 1

10 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C15UL
Altech
1: £67.47
15In Stock
10Expected 29/01/2027

Mfr. Part No.
2C15UL

Mouser Part No
845-2C15UL

Altech

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

Learn More

Datasheet

15In Stock

10Expected 29/01/2027

£67.47

£58.00

£54.96

£45.88

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

15 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C20UL
Altech
1: £60.41
7In Stock
10On Order

Mfr. Part No.
2C20UL

Mouser Part No
845-2C20UL

Altech

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

Learn More

Datasheet

7In Stock

10On Order

£60.41

£54.22

£50.34

£44.58

View

Min.: 1
Mult.: 1

20 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A, C CHAR, 2POLE 480Y/277VAC,UL489

2C25UL
Altech
1: £50.34
5In Stock

Mfr. Part No.
2C25UL

Mouser Part No
845-2C25UL

Altech

Circuit Breakers 25A, C CHAR, 2POLE 480Y/277VAC,UL489

Learn More

Datasheet

5In Stock

£50.34

£50.05

£48.66

View

Min.: 1
Mult.: 1

25 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C32UL
Altech
1: £72.31
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

£72.31

£58.17

£50.34

£48.49

View

Min.: 1
Mult.: 1

32 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C3UL
Altech
1: £66.55
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

£66.55

£50.34

£50.33

£49.01

View

Min.: 1
Mult.: 1

3 A

277 VAC

2 Pole

Handle

- 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

£48.40

£47.05

£43.95

View

Min.: 1
Mult.: 1

5 A

277 VAC

2 Pole

Handle

- 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

Handle

- 25 C

+ 55 C

Non-Illuminated

UL (AC) & DL (DC) Circuit Breakers

Customer Service Office

Company

Resources

Support

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