Circuit Breakers – Mouser Singapore

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UR Circuit Breakers

Altech UR Circuit Breakers are UL 1077-recognized supplementary protectors with B-, C-, and D-trip curves. These DIN-rail-mounted modules are available in 1-, 2-, and 3-pole variants as well as an add-on neutral pole option. Altech UR Circuit Breakers feature a 17.5mm width per pole and 10kA short circuit withstand capacity. Typical applications include sensitive electronics, power supplies, and appliance circuits.

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Part #

Circuit Breakers 10A,MCB D CHAR 1 PL, 277VAC, UL1077

1D10UR
Altech
1: $24.28
43Factory Stock Available

Mfr. Part No.
1D10UR

Mouser Part No
845-1D10UR

Altech

Circuit Breakers 10A,MCB D CHAR 1 PL, 277VAC, UL1077

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Datasheet

43Factory Stock Available

More Info Available

$24.28

$23.51

$22.83

$22.32

Quote

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A,MCB D CHAR 1 PL, 277VAC, UL1077

1D16UR
Altech
1: $38.03
10Factory Stock Available

Mfr. Part No.
1D16UR

Mouser Part No
845-1D16UR

Altech

Circuit Breakers 16A,MCB D CHAR 1 PL, 277VAC, UL1077

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Datasheet

10Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

16 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A,MCB D CHAR 1 PL, 277VAC, UL1077

1D25UR
Altech
1: $24.28
85Factory Stock Available

Mfr. Part No.
1D25UR

Mouser Part No
845-1D25UR

Altech

Circuit Breakers 25A,MCB D CHAR 1 PL, 277VAC, UL1077

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Datasheet

85Factory Stock Available

More Info Available

$24.28

$24.06

$22.39

$21.27

View

Min.: 1
Mult.: 1

25 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A,MCB D CHAR 1 PL, 277VAC, UL1077

1D30UR
Altech
1: $24.28
1Factory Stock Available

Mfr. Part No.
1D30UR

Mouser Part No
845-1D30UR

Altech

Circuit Breakers 30A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

1Factory Stock Available

More Info Available

$24.28

$24.06

$22.39

$21.27

View

Min.: 1
Mult.: 1

30 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A,MCB D CHAR 1 PL, 277VAC, UL1077

1D32UR
Altech
1: $38.03
22Factory Stock Available

Mfr. Part No.
1D32UR

Mouser Part No
845-1D32UR

Altech

Circuit Breakers 32A,MCB D CHAR 1 PL, 277VAC, UL1077

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Datasheet

22Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

32 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A,MCB D CHAR 1 PL, 277VAC, UL1077

1D3UR
Altech
1: $38.03
208Factory Stock Available

Mfr. Part No.
1D3UR

Mouser Part No
845-1D3UR

Altech

Circuit Breakers 3A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

208Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

3 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 40A,MCB D CHAR 1 PL, 277VAC, UL1077

1D40UR
Altech
1: $40.34
16Factory Stock Available

Mfr. Part No.
1D40UR

Mouser Part No
845-1D40UR

Altech

Circuit Breakers 40A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

16Factory Stock Available

More Info Available

$40.34

$33.47

$30.87

$25.58

View

Min.: 1
Mult.: 1

40 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 0.5A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B05UR
Altech
1: $71.56
15Factory Stock Available

Mfr. Part No.
2B05UR

Mouser Part No
845-2B05UR

Altech

Circuit Breakers 0.5A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

15Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

500 mA

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B15UR
Altech
1: $71.56
1Factory Stock Available

Mfr. Part No.
2B15UR

Mouser Part No
845-2B15UR

Altech

Circuit Breakers 15A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

1Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

15 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B16UR
Altech
1: $71.56
16Factory Stock Available

Mfr. Part No.
2B16UR

Mouser Part No
845-2B16UR

Altech

Circuit Breakers 16A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

16Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

16 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B20UR
Altech
1: $71.56
12Factory Stock Available

Mfr. Part No.
2B20UR

Mouser Part No
845-2B20UR

Altech

Circuit Breakers 20A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

12Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

20 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B25UR
Altech
1: $71.56
22Factory Stock Available

Mfr. Part No.
2B25UR

Mouser Part No
845-2B25UR

Altech

Circuit Breakers 25A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

22Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

25 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B2UR
Altech
1: $71.56
6Factory Stock Available

Mfr. Part No.
2B2UR

Mouser Part No
845-2B2UR

Altech

Circuit Breakers 3A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

6Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

3 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B30UR
Altech
1: $71.56
3Factory Stock Available

Mfr. Part No.
2B30UR

Mouser Part No
845-2B30UR

Altech

Circuit Breakers 30A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

3Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

30 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A 2PL B-trip 480Y/277VAC UL1077

2B3UR
Altech
1: $71.56
37Factory Stock Available

Mfr. Part No.
2B3UR

Mouser Part No
845-2B3UR

Altech

Circuit Breakers 3A 2PL B-trip 480Y/277VAC UL1077

Learn More

Datasheet

37Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

Supplementary Protector

3 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 40A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B40UR
Altech
1: $75.83
21Factory Stock Available

Mfr. Part No.
2B40UR

Mouser Part No
845-2B40UR

Altech

Circuit Breakers 40A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

21Factory Stock Available

More Info Available

$75.83

$62.91

$58.03

$49.93

View

Min.: 1
Mult.: 1

40 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B4UR
Altech
1: $71.56
22Factory Stock Available

Mfr. Part No.
2B4UR

Mouser Part No
845-2B4UR

Altech

Circuit Breakers 4A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

22Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

4 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B50UR
Altech
1: $75.83
11Factory Stock Available

Mfr. Part No.
2B50UR

Mouser Part No
845-2B50UR

Altech

Circuit Breakers 50A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

11Factory Stock Available

More Info Available

$75.83

$62.91

$58.03

$49.93

View

Min.: 1
Mult.: 1

50 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B5UR
Altech
1: $71.56
8Factory Stock Available

Mfr. Part No.
2B5UR

Mouser Part No
845-2B5UR

Altech

Circuit Breakers 5A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

8Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

5 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B60UR
Altech
1: $75.83
2Factory Stock Available

Mfr. Part No.
2B60UR

Mouser Part No
845-2B60UR

Altech

Circuit Breakers 60A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

2Factory Stock Available

More Info Available

$75.83

$62.91

$58.03

$49.93

View

Min.: 1
Mult.: 1

60 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B6UR
Altech
1: $71.56
128Factory Stock Available

Mfr. Part No.
2B6UR

Mouser Part No
845-2B6UR

Altech

Circuit Breakers 6A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

128Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

6 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 8A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B8UR
Altech
1: $71.56
44Factory Stock Available

Mfr. Part No.
2B8UR

Mouser Part No
845-2B8UR

Altech

Circuit Breakers 8A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

44Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

8 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A,MCB C CHAR 2PL 480Y/277VAC, UL1077

2C10UR
Altech
1: $48.55
10Factory Stock Available

Mfr. Part No.
2C10UR

Mouser Part No
845-2C10UR

Altech

Circuit Breakers 10A,MCB C CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

10Factory Stock Available

More Info Available

$48.55

$48.54

$47.27

$46.34

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

10 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12A,MCB C CHAR 2PL 480Y/277VAC, UL1077

2C12UR
Altech
1: $71.56
21Factory Stock Available

Mfr. Part No.
2C12UR

Mouser Part No
845-2C12UR

Altech

Circuit Breakers 12A,MCB C CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

21Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

12 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A,MCB C CHAR 2PL 480Y/277VAC, UL1077

2C15UR
Altech
1: $71.56
9Factory Stock Available

Mfr. Part No.
2C15UR

Mouser Part No
845-2C15UR

Altech

Circuit Breakers 15A,MCB C CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

9Factory Stock Available

More Info Available

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

15 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

UR Circuit Breakers

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500 mA
1 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
50 A
60 A