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 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

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

3D15UL
Altech
1: $136.43
11In Stock

Mfr. Part #
3D15UL

Mouser Part #
845-3D15UL

Altech

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

Learn More

Datasheet

11In Stock

$136.43

$133.69

$130.13

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

15 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C10UL
Altech
1: $48.28
147In Stock

Mfr. Part #
1C10UL

Mouser Part #
845-1C10UL

Altech

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

Learn More

Datasheet

147In 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
202In Stock

Mfr. Part #
1C3UL

Mouser Part #
845-1C3UL

Altech

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

Learn More

Datasheet

202In Stock

$48.28

$46.86

$43.93

$40.65

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

3 A

277 VAC

1 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 Breakers

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
9In Stock
21Expected 2026-11-09

Mfr. Part #
1C15UL

Mouser Part #
845-1C15UL

Altech

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

Learn More

Datasheet

9In Stock

21Expected 2026-11-09

$48.28

$46.50

$45.22

$44.64

View

Min.: 1
Mult.: 1

Circuit Breakers

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
3In Stock

Mfr. Part #
1C16UL

Mouser Part #
845-1C16UL

Altech

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

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Datasheet

3In 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 30A, C CHAR, 1POLE 277VAC, UL489

1C30UL
Altech
1: $48.28
5In Stock

Mfr. Part #
1C30UL

Mouser Part #
845-1C30UL

Altech

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

Learn More

Datasheet

5In Stock

$48.28

$48.10

$46.76

Quote

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

30 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
23In Stock

Mfr. Part #
1C4UL

Mouser Part #
845-1C4UL

Altech

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

Learn More

Datasheet

23In Stock

$48.28

$48.08

$46.83

$45.58

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: $48.28
10In Stock
11Expected 2026-11-09

Mfr. Part #
1C5UL

Mouser Part #
845-1C5UL

Altech

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

Learn More

Datasheet

10In Stock

11Expected 2026-11-09

$48.28

$47.78

$45.88

$43.99

Quote

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: $48.28
18In Stock

Mfr. Part #
1D10UL

Mouser Part #
845-1D10UL

Altech

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

Learn More

Datasheet

18In Stock

$48.28

$46.86

$45.30

$44.42

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D1UL
Altech
1: $48.28
1In Stock

Mfr. Part #
1D1UL

Mouser Part #
845-1D1UL

Altech

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

Learn More

Datasheet

1In Stock

$48.28

$44.83

$43.56

$42.19

Quote

Min.: 1
Mult.: 1

1 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D5UL
Altech
1: $48.28
3In Stock

Mfr. Part #
1D5UL

Mouser Part #
845-1D5UL

Altech

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

Learn More

Datasheet

3In Stock

$48.28

$46.67

$45.72

$44.77

View

Min.: 1
Mult.: 1

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

2C5UL
Altech
1: $96.55
14In Stock

Mfr. Part #
2C5UL

Mouser Part #
845-2C5UL

Altech

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

Learn More

Datasheet

14In Stock

$96.55

$91.71

$81.50

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: $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 Breakers

D-Trip

20 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C10UL
Altech
1: $144.84
9In Stock

Mfr. Part #
3C10UL

Mouser Part #
845-3C10UL

Altech

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

Learn More

Datasheet

9In Stock

$144.84

$143.94

$138.61

$136.92

View

Min.: 1
Mult.: 1

10 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C25UL
Altech
1: $144.84
5In Stock

Mfr. Part #
3C25UL

Mouser Part #
845-3C25UL

Altech

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

Learn More

Datasheet

5In Stock

$144.84

$143.34

$140.90

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

25 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A, C CHAR, 3POLE 480Y/277VAC,UL489

3C32UL
Altech
1: $144.84
6In Stock

Mfr. Part #
3C32UL

Mouser Part #
845-3C32UL

Altech

Circuit Breakers 32A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

6In Stock

$144.84

$144.82

$140.10

$137.51

View

Min.: 1
Mult.: 1

32 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
2In Stock

Mfr. Part #
3D10UL

Mouser Part #
845-3D10UL

Altech

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

Learn More

Datasheet

2In Stock

$144.84

$144.82

$139.00

$133.19

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

10 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers N32UL, Neutral Pole, UL489

N32UL
Altech
1: $84.83
1In Stock

Mfr. Part #
N32UL

Mouser Part #
845-N32UL

Altech

Circuit Breakers N32UL, Neutral Pole, UL489

Learn More

Datasheet

1In Stock

$84.83

$70.36

$64.90

$55.83

View

Min.: 1
Mult.: 1

32 A

277 VAC

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

1C03UL
Altech
1: $48.28
3In Stock

Mfr. Part #
1C03UL

Mouser Part #
845-1C03UL

Altech

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

Learn More

Datasheet

3In Stock

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

1C2UL
Altech
1: $48.28
8In Stock
62On Order

Mfr. Part #
1C2UL

Mouser Part #
845-1C2UL

Altech

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

Learn More

Datasheet

8In Stock

62On Order

$48.28

$47.09

$41.98

$40.65

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

2 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