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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Results: 190

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Part #

Circuit Breakers 6A,MCB B CHAR 1 PL, 277VAC, UL1077

1B6UR
Altech
1: $24.28
1In Stock

Mfr. Part No.
1B6UR

Mouser Part No
845-1B6UR

Altech

Circuit Breakers 6A,MCB B CHAR 1 PL, 277VAC, UL1077

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Datasheet

1In Stock

$24.28

$23.08

$22.03

$21.27

View

Min.: 1
Mult.: 1

6 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A,MCB B CHAR 3PL 480Y/277VAC, UL1077

3B20UR
Altech
1: $103.05
3In Stock

Mfr. Part No.
3B20UR

Mouser Part No
845-3B20UR

Altech

Circuit Breakers 20A,MCB B CHAR 3PL 480Y/277VAC, UL1077

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Datasheet

3In Stock

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

20 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2C60UR, 60A, MCB, C CHAR

2C60UR
Altech
1: $75.83
1In Stock
1On Order

Mfr. Part No.
2C60UR

Mouser Part No
845-2C60UR

Altech

Circuit Breakers 2C60UR, 60A, MCB, C CHAR

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Datasheet

1In Stock

1On Order

$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 0.5A, MCB B CHAR 1 PL, 277VAC, UL1077

1B05UR
Altech
1: $38.03
6In Stock

Mfr. Part No.
1B05UR

Mouser Part No
845-1B05UR

Altech

Circuit Breakers 0.5A, MCB B CHAR 1 PL, 277VAC, UL1077

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Datasheet

6In Stock

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

500 mA

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077

1B15UR
Altech
1: $38.03
6In Stock

Mfr. Part No.
1B15UR

Mouser Part No
845-1B15UR

Altech

Circuit Breakers 15A,MCB B CHAR 1 PL, 277VAC, UL1077

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Datasheet

6In Stock

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

15 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1B25UR
Altech
1: $38.03
3In Stock

Mfr. Part No.
1B25UR

Mouser Part No
845-1B25UR

Altech

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

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Datasheet

3In Stock

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

25 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C10UR
Altech
1: $24.28
1In Stock

Mfr. Part No.
1C10UR

Mouser Part No
845-1C10UR

Altech

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

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Datasheet

1In Stock

$24.28

$23.24

$22.15

$21.37

View

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077

1D20UR
Altech
1: $24.28
19In Stock

Mfr. Part No.
1D20UR

Mouser Part No
845-1D20UR

Altech

Circuit Breakers 20A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

19In Stock

$24.28

$24.26

$23.85

$23.36

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

20 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A,MCB D CHAR 1 PL, 277VAC, UL1077

1D4UR
Altech
1: $38.03
6In Stock

Mfr. Part No.
1D4UR

Mouser Part No
845-1D4UR

Altech

Circuit Breakers 4A,MCB D CHAR 1 PL, 277VAC, UL1077

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Datasheet

6In Stock

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

4 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A,MCB D CHAR 1 PL, 277VAC, UL1077

1D6UR
Altech
1: $29.13
3In Stock

Mfr. Part No.
1D6UR

Mouser Part No
845-1D6UR

Altech

Circuit Breakers 6A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

3In Stock

$29.13

$24.28

$23.81

$22.82

View

Min.: 1
Mult.: 1

6 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 8A,MCB D CHAR 1 PL, 277VAC, UL1077

1D8UR
Altech
1: $38.03
3In Stock

Mfr. Part No.
1D8UR

Mouser Part No
845-1D8UR

Altech

Circuit Breakers 8A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

3In Stock

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

8 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B1UR
Altech
1: $71.56
22In Stock

Mfr. Part No.
2B1UR

Mouser Part No
845-2B1UR

Altech

Circuit Breakers 1A,MCB B CHAR 2PL 480Y/277VAC, UL1077

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Datasheet

22In Stock

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

1 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2C16UR
Altech
1: $48.55
4In Stock

Mfr. Part No.
2C16UR

Mouser Part No
845-2C16UR

Altech

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

Learn More

Datasheet

4In Stock

$48.55

$48.54

$46.59

$45.06

Quote

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

16 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D05UR
Altech
1: $71.56
1In Stock

Mfr. Part No.
2D05UR

Mouser Part No
845-2D05UR

Altech

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

Learn More

Datasheet

1In Stock

$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 10A,MCB D CHAR 2PL 480Y/277VAC, UL1077

2D10UR
Altech
1: $71.56
7In Stock

Mfr. Part No.
2D10UR

Mouser Part No
845-2D10UR

Altech

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

Learn More

Datasheet

7In Stock

$71.56

$59.36

$54.77

$47.11

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

10 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D20UR
Altech
1: $59.60
10In Stock

Mfr. Part No.
2D20UR

Mouser Part No
845-2D20UR

Altech

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

Learn More

Datasheet

10In Stock

$59.60

$58.10

$55.27

$45.82

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

20 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2D6UR
Altech
1: $48.55
5Expected 14/12/2026

Mfr. Part No.
2D6UR

Mouser Part No
845-2D6UR

Altech

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

Learn More

Datasheet

5Expected 14/12/2026

$48.55

$48.29

$47.49

$46.65

Quote

Min.: 1
Mult.: 1

6 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1 POLE, 277VAC UL1077

1B10UR
Altech
1: $38.03
115Factory Stock Available

Mfr. Part No.
1B10UR

Mouser Part No
845-1B10UR

Altech

Circuit Breakers 1 POLE, 277VAC UL1077

Learn More

Datasheet

115Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12A,MCB B CHAR 1 PL, 277VAC, UL1077

1B12UR
Altech
1: $38.03
35Factory Stock Available

Mfr. Part No.
1B12UR

Mouser Part No
845-1B12UR

Altech

Circuit Breakers 12A,MCB B CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

35Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

12 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A,MCB B CHAR 1 PL, 277VAC, UL1077

1B13UR
Altech
1: $38.03
15Factory Stock Available

Mfr. Part No.
1B13UR

Mouser Part No
845-1B13UR

Altech

Circuit Breakers 13A,MCB B CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

15Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

13 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1B16UR
Altech
1: $38.03
1Factory Stock Available

Mfr. Part No.
1B16UR

Mouser Part No
845-1B16UR

Altech

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

Learn More

Datasheet

1Factory 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 20A,MCB B CHAR 1 PL, 277VAC, UL1077

1B20UR
Altech
1: $38.03
80Factory Stock Available

Mfr. Part No.
1B20UR

Mouser Part No
845-1B20UR

Altech

Circuit Breakers 20A,MCB B CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

80Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

20 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1B30UR
Altech
1: $38.03
30Factory Stock Available

Mfr. Part No.
1B30UR

Mouser Part No
845-1B30UR

Altech

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

Learn More

Datasheet

30Factory Stock Available

More Info Available

$38.03

$31.55

$29.10

$24.11

View

Min.: 1
Mult.: 1

30 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1B32UR
Altech
1: $38.03
37Factory Stock Available

Mfr. Part No.
1B32UR

Mouser Part No
845-1B32UR

Altech

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

Learn More

Datasheet

37Factory 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 B CHAR 1 PL, 277VAC, UL1077

1B3UR
Altech
1: $38.03
209Factory Stock Available

Mfr. Part No.
1B3UR

Mouser Part No
845-1B3UR

Altech

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

Learn More

Datasheet

209Factory 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

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