Circuit Breakers – Mouser Canada

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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: $48.28
154In Stock

Mfr. Part #
1C10UL

Mouser Part #
845-1C10UL

Altech

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

Learn More

Datasheet

154In Stock

$48.28

$46.37

$43.30

$42.38

View

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C3UL
Altech
1: $48.28
223In Stock

Mfr. Part #
1C3UL

Mouser Part #
845-1C3UL

Altech

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

Learn More

Datasheet

223In Stock

$48.28

$46.86

$43.93

$40.65

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $96.55
38In Stock

Mfr. Part #
2C10UL

Mouser Part #
845-2C10UL

Altech

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

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Datasheet

38In Stock

$96.55

$84.93

$83.23

View

Min.: 1
Mult.: 1

10 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C12UL
Altech
1: $118.61
66In Stock

Mfr. Part #
2C12UL

Mouser Part #
845-2C12UL

Altech

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

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Datasheet

66In Stock

$118.61

$105.12

$100.22

$98.50

View

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

12 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C15UL
Altech
1: $48.28
22In Stock

Mfr. Part #
1C15UL

Mouser Part #
845-1C15UL

Altech

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

Learn More

Datasheet

22In Stock

$48.28

$46.50

$45.22

$44.64

View

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

15 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C16UL
Altech
1: $62.61
5In Stock

Mfr. Part #
1C16UL

Mouser Part #
845-1C16UL

Altech

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

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Datasheet

5In Stock

$62.61

$57.93

$44.70

$42.09

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: $48.28
8In Stock

Mfr. Part #
1C20UL

Mouser Part #
845-1C20UL

Altech

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

Learn More

Datasheet

8In Stock

$48.28

$45.82

$44.86

$43.98

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C4UL
Altech
1: $48.28
26In Stock

Mfr. Part #
1C4UL

Mouser Part #
845-1C4UL

Altech

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

Learn More

Datasheet

26In Stock

$48.28

$48.08

$46.83

$45.58

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $48.28
18In Stock

Mfr. Part #
1C5UL

Mouser Part #
845-1C5UL

Altech

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

Learn More

Datasheet

18In Stock

$48.28

$47.78

$45.88

$43.99

Quote

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

5 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C8UL
Altech
1: $63.98
9In Stock
2Expected 2026-05-04

Mfr. Part #
1C8UL

Mouser Part #
845-1C8UL

Altech

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

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Datasheet

9In Stock

2Expected 2026-05-04

$63.98

$48.28

$46.38

$43.10

View

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

8 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D10UL
Altech
1: $48.28
19In Stock

Mfr. Part #
1D10UL

Mouser Part #
845-1D10UL

Altech

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

Learn More

Datasheet

19In Stock

$48.28

$46.86

$45.30

$44.42

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $60.98
10In Stock

Mfr. Part #
1D20UL

Mouser Part #
845-1D20UL

Altech

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

Learn More

Datasheet

10In Stock

$60.98

$54.91

$49.88

$45.37

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C3UL
Altech
1: $91.66
5In Stock

Mfr. Part #
2C3UL

Mouser Part #
845-2C3UL

Altech

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

Learn More

Datasheet

5In Stock

$91.66

$83.28

$79.56

$77.31

View

Min.: 1
Mult.: 1

3 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: $133.00
6In Stock

Mfr. Part #
2D03UL

Mouser Part #
845-2D03UL

Altech

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

Learn More

Datasheet

6In Stock

$133.00

$111.25

$105.41

$87.84

View

Min.: 1
Mult.: 1

300 mA

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D20UL
Altech
1: $96.55
15In Stock

Mfr. Part #
2D20UL

Mouser Part #
845-2D20UL

Altech

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

Learn More

Datasheet

15In Stock

$96.55

$94.85

$89.04

$87.24

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

20 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C25UL
Altech
1: $144.84
6In Stock

Mfr. Part #
3C25UL

Mouser Part #
845-3C25UL

Altech

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

Learn More

Datasheet

6In Stock

$144.84

$143.34

$140.90

View

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

25 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A, D CHAR, 3POLE 480Y/277VAC,UL489

3D10UL
Altech
1: $144.84
3In Stock

Mfr. Part #
3D10UL

Mouser Part #
845-3D10UL

Altech

Circuit Breakers 10A, D CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

3In Stock

$144.84

$144.82

$139.00

$133.19

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

10 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3D15UL
Altech
1: $144.84
11In Stock

Mfr. Part #
3D15UL

Mouser Part #
845-3D15UL

Altech

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

Learn More

Datasheet

11In Stock

$144.84

$144.82

$125.34

$123.11

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $193.26
1In Stock

Mfr. Part #
3D3UL

Mouser Part #
845-3D3UL

Altech

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

Learn More

Datasheet

1In Stock

$193.26

$160.26

$149.33

$122.98

$114.19

Min.: 1
Mult.: 1

3 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

1C03UL
Altech
1: $48.28
1In Stock
5Expected 2026-09-07

Mfr. Part #
1C03UL

Mouser Part #
845-1C03UL

Altech

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

Learn More

Datasheet

1In Stock

5Expected 2026-09-07

$48.28

$48.25

$46.87

$45.49

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: $71.18
3In Stock
4Expected 2026-09-14

Mfr. Part #
1C05UL

Mouser Part #
845-1C05UL

Altech

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

Learn More

Datasheet

3In Stock

4Expected 2026-09-14

$71.18

$59.04

$54.46

$46.86

View

Min.: 1
Mult.: 1

500 mA

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C2UL
Altech
1: $48.28
32In Stock

Mfr. Part #
1C2UL

Mouser Part #
845-1C2UL

Altech

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

Learn More

Datasheet

32In Stock

$48.28

$47.09

$41.98

$40.65

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $71.18
4In Stock

Mfr. Part #
1C32UL

Mouser Part #
845-1C32UL

Altech

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

Learn More

Datasheet

4In Stock

$71.18

$59.04

$54.46

$46.86

View

Min.: 1
Mult.: 1

32 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C6UL
Altech
1: $62.61
5In Stock
5Expected 2026-07-27

Mfr. Part #
1C6UL

Mouser Part #
845-1C6UL

Altech

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

Learn More

Datasheet

5In Stock

5Expected 2026-07-27

$62.61

$57.93

$46.38

$43.10

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $48.28
18In Stock

Mfr. Part #
1D15UL

Mouser Part #
845-1D15UL

Altech

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

Learn More

Datasheet

18In Stock

$48.28

$47.49

$45.86

$42.94

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

15 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

UL (AC) & DL (DC) Circuit Breakers

Mouser Electronics®

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