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 3A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D3UR
Altech
1: $105.32
11Factory Stock Available

Mfr. Part No.
3D3UR

Mouser Part No
845-3D3UR

Altech

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

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Datasheet

11Factory Stock Available

More Info Available

$105.32

$87.38

$81.26

$67.71

View

Min.: 1
Mult.: 1

3 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 40A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D40UR
Altech
1: $111.67
7Factory Stock Available

Mfr. Part No.
3D40UR

Mouser Part No
845-3D40UR

Altech

Circuit Breakers 40A,MCB D CHAR 3PL 480Y/277VAC, UL1077

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Datasheet

7Factory Stock Available

More Info Available

$111.67

$92.64

$86.15

$71.79

View

Min.: 1
Mult.: 1

40 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D4UR
Altech
1: $105.32
1Factory Stock Available

Mfr. Part No.
3D4UR

Mouser Part No
845-3D4UR

Altech

Circuit Breakers 4A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

1Factory Stock Available

More Info Available

$105.32

$87.38

$81.26

$67.71

View

Min.: 1
Mult.: 1

4 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D50UR
Altech
1: $111.67
57Factory Stock Available

Mfr. Part No.
3D50UR

Mouser Part No
845-3D50UR

Altech

Circuit Breakers 50A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

57Factory Stock Available

More Info Available

$111.67

$92.64

$86.15

$71.79

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

50 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D5UR
Altech
1: $105.32
39Factory Stock Available

Mfr. Part No.
3D5UR

Mouser Part No
845-3D5UR

Altech

Circuit Breakers 5A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

39Factory Stock Available

More Info Available

$105.32

$87.38

$81.26

$67.71

View

Min.: 1
Mult.: 1

5 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D60UR
Altech
1: $111.67
6Factory Stock Available

Mfr. Part No.
3D60UR

Mouser Part No
845-3D60UR

Altech

Circuit Breakers 60A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

6Factory Stock Available

More Info Available

$111.67

$92.64

$86.15

$71.79

View

Min.: 1
Mult.: 1

60 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A,MCB B CHAR 2PL 480Y/277VAC, UL1077

2B32UR
Altech
1: $49.62
Non-Stocked Lead-Time 11 Weeks

Mfr. Part No.
2B32UR

Mouser Part No
845-2B32UR

Altech

Circuit Breakers 32A,MCB B CHAR 2PL 480Y/277VAC, UL1077

Learn More

Datasheet

Non-Stocked Lead-Time 11 Weeks

$49.62

$48.80

$47.43

Quote

Min.: 1
Mult.: 1

32 A

277 VAC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C32UR
Altech
1: $105.32
Non-Stocked Lead-Time 3 Weeks

Mfr. Part No.
3C32UR

Mouser Part No
845-3C32UR

Altech

Circuit Breakers 32A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

Non-Stocked Lead-Time 3 Weeks

$105.32

$87.38

$81.26

$67.71

View

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

32 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A,MCB B CHAR 1 PL, 277VAC, UL1077

1B50UR
Altech
1: $41.23
Non-Stocked

Mfr. Part No.
1B50UR

Mouser Part No
845-1B50UR

Altech

Circuit Breakers 50A,MCB B CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$41.23

$34.21

$31.55

$26.15

View

Min.: 1
Mult.: 1

50 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A,MCB B CHAR 1 PL, 277VAC, UL1077

1B60UR
Altech
1: $26.31
Non-Stocked

Mfr. Part No.
1B60UR

Mouser Part No
845-1B60UR

Altech

Circuit Breakers 60A,MCB B CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$26.31

$25.02

$23.89

$23.07

$22.38

Min.: 1
Mult.: 1

60 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 63A,MCB B CHAR 1 PL, 277VAC, UL1077

1B63UR
Altech
1: $26.31
Non-Stocked

Mfr. Part No.
1B63UR

Mouser Part No
845-1B63UR

Altech

Circuit Breakers 63A,MCB B CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$26.31

$25.02

$23.89

$23.07

$22.38

Min.: 1
Mult.: 1

63 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C12UR
Altech
1: $24.81
Non-Stocked

Mfr. Part No.
1C12UR

Mouser Part No
845-1C12UR

Altech

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

Learn More

Datasheet

Non-Stocked

$24.81

$23.59

$22.52

$21.74

View

Min.: 1
Mult.: 1

12 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C13UR
Altech
1: $24.81
Non-Stocked

Mfr. Part No.
1C13UR

Mouser Part No
845-1C13UR

Altech

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

Learn More

Datasheet

Non-Stocked

$24.81

$23.59

$22.52

$21.74

View

Min.: 1
Mult.: 1

13 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A,MCB C CHAR 1 PL, 277VAC, UL1077

1C60UR
Altech
1: $41.23
Non-Stocked

Mfr. Part No.
1C60UR

Mouser Part No
845-1C60UR

Altech

Circuit Breakers 60A,MCB C CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$41.23

$34.21

$31.55

$26.15

View

Min.: 1
Mult.: 1

60 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1C6UR
Altech
1: $24.81
Non-Stocked Lead-Time 20 Weeks

Mfr. Part No.
1C6UR

Mouser Part No
845-1C6UR

Altech

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

Learn More

Datasheet

Non-Stocked Lead-Time 20 Weeks

$24.81

$24.80

$23.85

$23.52

View

Min.: 1
Mult.: 1

6 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D12UR
Altech
1: $38.86
Non-Stocked

Mfr. Part No.
1D12UR

Mouser Part No
845-1D12UR

Altech

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

Learn More

Datasheet

Non-Stocked

$38.86

$32.25

$29.75

$24.64

View

Min.: 1
Mult.: 1

12 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D15UR
Altech
1: $38.86
Non-Stocked

Mfr. Part No.
1D15UR

Mouser Part No
845-1D15UR

Altech

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

Learn More

Datasheet

Non-Stocked

$38.86

$32.25

$29.75

$24.64

View

Min.: 1
Mult.: 1

15 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: $38.86
Non-Stocked

Mfr. Part No.
1D16UR

Mouser Part No
845-1D16UR

Altech

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

Learn More

Datasheet

Non-Stocked

$38.86

$32.25

$29.75

$24.64

View

Min.: 1
Mult.: 1

16 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: $24.81
Non-Stocked

Mfr. Part No.
1D20UR

Mouser Part No
845-1D20UR

Altech

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

Learn More

Datasheet

Non-Stocked

$24.81

$24.23

$22.52

$21.64

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $38.86
Non-Stocked

Mfr. Part No.
1D4UR

Mouser Part No
845-1D4UR

Altech

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

Learn More

Datasheet

Non-Stocked

$38.86

$32.25

$29.75

$24.64

View

Min.: 1
Mult.: 1

4 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A,MCB D CHAR 1 PL, 277VAC, UL1077

1D5UR
Altech
1: $24.81
Non-Stocked

Mfr. Part No.
1D5UR

Mouser Part No
845-1D5UR

Altech

Circuit Breakers 5A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$24.81

$24.34

$22.66

$21.50

View

Min.: 1
Mult.: 1

5 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A,MCB D CHAR 1 PL, 277VAC, UL1077

1D60UR
Altech
1: $41.23
Non-Stocked

Mfr. Part No.
1D60UR

Mouser Part No
845-1D60UR

Altech

Circuit Breakers 60A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$41.23

$34.21

$31.55

$26.15

View

Min.: 1
Mult.: 1

60 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 63A,MCB D CHAR 1 PL, 277VAC, UL1077

1D63UR
Altech
1: $41.23
Non-Stocked

Mfr. Part No.
1D63UR

Mouser Part No
845-1D63UR

Altech

Circuit Breakers 63A,MCB D CHAR 1 PL, 277VAC, UL1077

Learn More

Datasheet

Non-Stocked

$41.23

$34.21

$31.55

$26.15

View

Min.: 1
Mult.: 1

63 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: $38.86
Non-Stocked

Mfr. Part No.
1D8UR

Mouser Part No
845-1D8UR

Altech

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

Learn More

Datasheet

Non-Stocked

$38.86

$32.25

$29.75

$24.64

View

Min.: 1
Mult.: 1

8 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2B12UR
Altech
1: $73.14
Non-Stocked

Mfr. Part No.
2B12UR

Mouser Part No
845-2B12UR

Altech

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

Learn More

Datasheet

Non-Stocked

$73.14

$60.67

$55.98

$48.15

View

Min.: 1
Mult.: 1

12 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