Circuit Breakers – Mouser Singapore

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

3C8UL
Altech
1: $136.79
11In Stock

Mfr. Part No.
3C8UL

Mouser Part No
845-3C8UL

Altech

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

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Datasheet

11In Stock

$136.79

$136.78

$130.06

$119.95

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: $136.79
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

$136.79

$135.39

$129.34

$121.16

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: $182.53
1In Stock

Mfr. Part No.
3D3UL

Mouser Part No
845-3D3UL

Altech

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

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Datasheet

1In Stock

$182.53

$151.35

$141.03

$116.14

$107.85

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: $80.12
1In Stock

Mfr. Part No.
N32UL

Mouser Part No
845-N32UL

Altech

Circuit Breakers N32UL, Neutral Pole, UL489

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Datasheet

1In Stock

$80.12

$66.45

$61.30

$52.73

View

Min.: 1
Mult.: 1

32 A

277 VAC

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C10UL
Altech
1: $91.19
57On Order

Mfr. Part No.
2C10UL

Mouser Part No
845-2C10UL

Altech

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

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Datasheet

57On Order

$91.19

$85.33

$83.18

View

Min.: 1
Mult.: 1

10 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C4UL
Altech
1: $91.19
36Expected 10/8/2026

Mfr. Part No.
2C4UL

Mouser Part No
845-2C4UL

Altech

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

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Datasheet

36Expected 10/8/2026

$91.19

$90.06

$88.21

$86.07

View

Min.: 1
Mult.: 1

4 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C20UL
Altech
1: $136.79
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

$136.79

$135.95

$133.52

$128.63

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: $45.60
4Expected 10/11/2026

Mfr. Part No.
1C03UL

Mouser Part No
845-1C03UL

Altech

Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER

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Datasheet

4Expected 10/11/2026

$45.60

$45.57

$44.27

$42.96

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: $45.60
5Expected 13/8/2026

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

5Expected 13/8/2026

$45.60

$44.53

$42.21

$39.75

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: $45.60
42Expected 9/11/2026

Mfr. Part No.
1C2UL

Mouser Part No
845-1C2UL

Altech

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

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Datasheet

42Expected 9/11/2026

$45.60

$45.59

$44.21

$41.56

View

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: $45.60
6Expected 3/12/2026

Mfr. Part No.
1C30UL

Mouser Part No
845-1C30UL

Altech

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

Learn More

Datasheet

6Expected 3/12/2026

$45.60

$44.95

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: $45.60
9Expected 7/12/2026

Mfr. Part No.
1C6UL

Mouser Part No
845-1C6UL

Altech

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

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Datasheet

9Expected 7/12/2026

$45.60

$43.85

$41.86

$41.18

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

6 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D25UL
Altech
1: $67.22
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

$67.22

$55.76

$51.44

$44.25

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: $45.37
7Expected 1/12/2026

Mfr. Part No.
1D2UL

Mouser Part No
845-1D2UL

Altech

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

Learn More

Datasheet

7Expected 1/12/2026

$45.37

$44.09

$42.51

$42.04

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: $48.55
5Expected 13/8/2026

Mfr. Part No.
1D63UL

Mouser Part No
845-1D63UL

Altech

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

Learn More

Datasheet

5Expected 13/8/2026

$48.55

$46.05

$45.12

$44.19

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: $45.60
7Expected 7/12/2026

Mfr. Part No.
1D6UL

Mouser Part No
845-1D6UL

Altech

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

Learn More

Datasheet

7Expected 7/12/2026

$45.60

$45.59

$43.71

$42.06

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: $45.60
23Expected 4/12/2026

Mfr. Part No.
1D8UL

Mouser Part No
845-1D8UL

Altech

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

Learn More

Datasheet

23Expected 4/12/2026

$45.60

$42.50

$41.11

$39.62

View

Min.: 1
Mult.: 1

8 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C15UL
Altech
1: $91.19
21Expected 12/8/2026

Mfr. Part No.
2C15UL

Mouser Part No
845-2C15UL

Altech

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

Learn More

Datasheet

21Expected 12/8/2026

$91.19

$91.17

$87.26

$83.54

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

15 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C25UL
Altech
1: $91.19
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

$91.19

$86.59

$84.42

View

Min.: 1
Mult.: 1

25 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D05UL
Altech
1: $125.61
5Expected 10/8/2026

Mfr. Part No.
2D05UL

Mouser Part No
845-2D05UL

Altech

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

Learn More

Datasheet

5Expected 10/8/2026

$125.61

$105.07

$99.55

$82.96

$77.42

Min.: 1
Mult.: 1

500 mA

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D15UL
Altech
1: $91.19
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

$91.19

$91.16

$91.15

$90.52

View

Min.: 1
Mult.: 1

15 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D50UL
Altech
1: $97.08
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

$97.08

$96.03

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: $136.48
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

$136.48

$135.31

$134.86

$131.88

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

25 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A, C CHAR, 3POLE 480Y/277VAC,UL489

3C30UL
Altech
1: $136.79
4Expected 14/9/2026

Mfr. Part No.
3C30UL

Mouser Part No
845-3C30UL

Altech

Circuit Breakers 30A, C CHAR, 3POLE 480Y/277VAC,UL489

Learn More

Datasheet

4Expected 14/9/2026

$136.79

$130.26

$125.75

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

30 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A, D CHAR, 3POLE 240VAC,UL489

3D60UL
Altech
1: $145.62
5Expected 16/11/2026

Mfr. Part No.
3D60UL

Mouser Part No
845-3D60UL

Altech

Circuit Breakers 60A, D CHAR, 3POLE 240VAC,UL489

Learn More

Datasheet

5Expected 16/11/2026

$145.62

$145.60

Min.: 1
Mult.: 1

60 A

240 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

UL (AC) & DL (DC) Circuit Breakers

Customer Service Office

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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