Circuit Breakers – Mouser United Kingdom

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 140

Applied Filters:

Product

Type

Current Rating

Voltage Rating AC

Number of Poles

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circuit Breakers 8A, C CHAR, 3POLE 480Y/277VAC,UL489

3C8UL
Altech
1: £98.88
11In Stock

Mfr. Part No.
3C8UL

Mouser Part No
845-3C8UL

Altech

Circuit Breakers 8A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

11In Stock

£98.88

£83.55

£77.85

£69.20

View

Min.: 1
Mult.: 1

8 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A, D CHAR, 3POLE 480Y/277VAC,UL489

3D15UL
Altech
1: £75.51
5In Stock

Mfr. Part No.
3D15UL

Mouser Part No
845-3D15UL

Altech

Circuit Breakers 15A, D CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

5In Stock

£75.51

£74.74

£71.40

£66.89

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

15 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3D3UL
Altech
1: £98.88
1In Stock

Mfr. Part No.
3D3UL

Mouser Part No
845-3D3UL

Altech

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

Learn More

Datasheet

1In Stock

£98.88

£75.51

£74.11

£69.08

View

Min.: 1
Mult.: 1

3 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers N32UL, Neutral Pole, UL489

N32UL
Altech
1: £44.23
1In Stock

Mfr. Part No.
N32UL

Mouser Part No
845-N32UL

Altech

Circuit Breakers N32UL, Neutral Pole, UL489

Learn More

Datasheet

1In Stock

£44.23

£36.68

£33.84

£29.11

View

Min.: 1
Mult.: 1

32 A

277 VAC

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A, C CHAR, 1POLE 277VAC, UL489

1C3UL
Altech
1: £25.18
245On Order

Mfr. Part No.
1C3UL

Mouser Part No
845-1C3UL

Altech

Circuit Breakers 3A, C CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

245On Order

£25.18

£25.17

£25.16

£24.43

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

3 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C10UL
Altech
1: £50.34
49On Order

Mfr. Part No.
2C10UL

Mouser Part No
845-2C10UL

Altech

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

Learn More

Datasheet

49On Order

£50.34

£47.11

£45.92

View

Min.: 1
Mult.: 1

10 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A, C CHAR, 3POLE 480Y/277VAC,UL489

3C20UL
Altech
1: £75.51
43Expected 14/12/2026

Mfr. Part No.
3C20UL

Mouser Part No
845-3C20UL

Altech

Circuit Breakers 20A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

43Expected 14/12/2026

£75.51

£65.11

£63.84

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

20 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

1C03UL
Altech
1: £25.18
4Expected 10/11/2026

Mfr. Part No.
1C03UL

Mouser Part No
845-1C03UL

Altech

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

Learn More

Datasheet

4Expected 10/11/2026

£25.18

£25.16

£24.44

£23.72

View

Min.: 1
Mult.: 1

300 mA

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 0.5A, C CHAR, 1POLE 277VAC, UL489

1C05UL
Altech
1: £25.18
6Expected 11/01/2027

Mfr. Part No.
1C05UL

Mouser Part No
845-1C05UL

Altech

Circuit Breakers 0.5A, C CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

6Expected 11/01/2027

£25.18

£23.98

£23.34

£22.65

View

Min.: 1
Mult.: 1

500 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: £25.18
5On Order

Mfr. Part No.
1C1.6UL

Mouser Part No
845-1C1.6UL

Altech

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

Learn More

Datasheet

5On Order

£25.18

£24.58

£23.30

£21.95

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

1C2UL
Altech
1: £25.18
43Expected 09/11/2026

Mfr. Part No.
1C2UL

Mouser Part No
845-1C2UL

Altech

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

Learn More

Datasheet

43Expected 09/11/2026

£25.18

£25.17

£24.41

£22.94

£22.44

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

2 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A, C CHAR, 1POLE 277VAC, UL489

1C30UL
Altech
1: £25.18
11On Order

Mfr. Part No.
1C30UL

Mouser Part No
845-1C30UL

Altech

Circuit Breakers 30A, C CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

11On Order

£25.18

£25.08

£24.39

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

30 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A, C CHAR, 1POLE 277VAC, UL489

1C6UL
Altech
1: £25.18
9Expected 07/12/2026

Mfr. Part No.
1C6UL

Mouser Part No
845-1C6UL

Altech

Circuit Breakers 6A, C CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

9Expected 07/12/2026

£25.18

£23.66

£23.01

£22.33

Quote

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

6 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D15UL
Altech
1: £25.18
45On Order

Mfr. Part No.
1D15UL

Mouser Part No
845-1D15UL

Altech

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

Learn More

Datasheet

45On Order

£25.18

£24.76

£23.91

£22.39

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

15 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
5Expected 14/12/2026

Mfr. Part No.
1D25UL

Mouser Part No
845-1D25UL

Altech

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

Learn More

Datasheet

5Expected 14/12/2026

£37.11

£30.78

£28.40

£24.43

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: £25.18
7Expected 18/12/2026

Mfr. Part No.
1D2UL

Mouser Part No
845-1D2UL

Altech

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

Learn More

Datasheet

7Expected 18/12/2026

£25.18

£24.22

£23.50

£22.72

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
5On Order

Mfr. Part No.
1D63UL

Mouser Part No
845-1D63UL

Altech

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

Learn More

Datasheet

5On Order

£26.80

£25.42

£24.91

£24.39

View

Min.: 1
Mult.: 1

63 A

240 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A, D CHAR, 1POLE 277VAC, UL489

1D6UL
Altech
1: £25.18
7Expected 07/12/2026

Mfr. Part No.
1D6UL

Mouser Part No
845-1D6UL

Altech

Circuit Breakers 6A, D CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

7Expected 07/12/2026

£25.18

£25.17

£24.13

£23.22

View

Min.: 1
Mult.: 1

6 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 8A, D CHAR, 1POLE 277VAC, UL489

1D8UL
Altech
1: £25.18
23Expected 04/01/2027

Mfr. Part No.
1D8UL

Mouser Part No
845-1D8UL

Altech

Circuit Breakers 8A, D CHAR, 1POLE 277VAC, UL489

Learn More

Datasheet

23Expected 04/01/2027

£25.18

£24.85

£24.08

Quote

Min.: 1
Mult.: 1

8 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C20UL
Altech
1: £50.34
12On Order

Mfr. Part No.
2C20UL

Mouser Part No
845-2C20UL

Altech

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

Learn More

Datasheet

12On Order

£50.34

£45.20

£43.04

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
5Expected 21/12/2026

Mfr. Part No.
2C25UL

Mouser Part No
845-2C25UL

Altech

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

Learn More

Datasheet

5Expected 21/12/2026

£50.34

£47.81

£46.60

View

Min.: 1
Mult.: 1

25 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D15UL
Altech
1: £50.34
8Expected 21/12/2026

Mfr. Part No.
2D15UL

Mouser Part No
845-2D15UL

Altech

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

Learn More

Datasheet

8Expected 21/12/2026

£50.34

£50.33

£50.32

£49.97

View

Min.: 1
Mult.: 1

15 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D3UL
Altech
1: £50.34
15Expected 11/01/2027

Mfr. Part No.
2D3UL

Mouser Part No
845-2D3UL

Altech

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

Learn More

Datasheet

15Expected 11/01/2027

£50.34

£49.68

£49.10

View

Min.: 1
Mult.: 1

3 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A, D CHAR, 2POLE 240VAC,UL489

2D50UL
Altech
1: £53.59
6Expected 19/10/2026

Mfr. Part No.
2D50UL

Mouser Part No
845-2D50UL

Altech

Circuit Breakers 50A, D CHAR, 2POLE 240VAC,UL489

Learn More

Datasheet

6Expected 19/10/2026

£53.59

£53.01

View

Min.: 1
Mult.: 1

50 A

240 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A, C CHAR, 3POLE 480Y/277VAC,UL489

3C25UL
Altech
1: £75.34
5Expected 21/12/2026

Mfr. Part No.
3C25UL

Mouser Part No
845-3C25UL

Altech

Circuit Breakers 25A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

5Expected 21/12/2026

£75.34

£74.69

£74.45

£72.80

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

25 A

277 VAC

3 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