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 15A,MCB B CHAR 3PL 480Y/277VAC, UL1077

3B15UR
Altech
1: $103.05
1Factory Stock Available

Mfr. Part No.
3B15UR

Mouser Part No
845-3B15UR

Altech

Circuit Breakers 15A,MCB B CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

1Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

15 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A,MCB B CHAR 3PL 480Y/277VAC, UL1077

3B25UR
Altech
1: $103.05
1Factory Stock Available

Mfr. Part No.
3B25UR

Mouser Part No
845-3B25UR

Altech

Circuit Breakers 25A,MCB B CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

1Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

25 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A,MCB B CHAR 3PL 480Y/277VAC, UL1077

3B30UR
Altech
1: $103.05
31Factory Stock Available

Mfr. Part No.
3B30UR

Mouser Part No
845-3B30UR

Altech

Circuit Breakers 30A,MCB B CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

31Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

30 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3B32UR
Altech
1: $103.05
48Factory Stock Available

Mfr. Part No.
3B32UR

Mouser Part No
845-3B32UR

Altech

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

Learn More

Datasheet

48Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

32 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3B3UR
Altech
1: $103.05
2Factory Stock Available

Mfr. Part No.
3B3UR

Mouser Part No
845-3B3UR

Altech

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

Learn More

Datasheet

2Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

3 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3B40UR
Altech
1: $109.26
7Factory Stock Available

Mfr. Part No.
3B40UR

Mouser Part No
845-3B40UR

Altech

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

Learn More

Datasheet

7Factory Stock Available

More Info Available

$109.26

$90.64

$84.29

$70.24

View

Min.: 1
Mult.: 1

40 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3B50UR
Altech
1: $109.26
1Factory Stock Available

Mfr. Part No.
3B50UR

Mouser Part No
845-3B50UR

Altech

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

Learn More

Datasheet

1Factory Stock Available

More Info Available

$109.26

$90.64

$84.29

$70.24

View

Min.: 1
Mult.: 1

50 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3B5UR
Altech
1: $103.05
11Factory Stock Available

Mfr. Part No.
3B5UR

Mouser Part No
845-3B5UR

Altech

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

Learn More

Datasheet

11Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

5 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3B60UR
Altech
1: $109.26
5Factory Stock Available

Mfr. Part No.
3B60UR

Mouser Part No
845-3B60UR

Altech

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

Learn More

Datasheet

5Factory Stock Available

More Info Available

$109.26

$90.64

$84.29

$70.24

View

Min.: 1
Mult.: 1

60 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 63A,MCB B CHAR 3PL 480Y/277VAC, UL1077

3B63UR
Altech
1: $109.26
2Factory Stock Available

Mfr. Part No.
3B63UR

Mouser Part No
845-3B63UR

Altech

Circuit Breakers 63A,MCB B CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

2Factory Stock Available

More Info Available

$109.26

$90.64

$84.29

$70.24

View

Min.: 1
Mult.: 1

63 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C10UR
Altech
1: $103.05
9Factory Stock Available

Mfr. Part No.
3C10UR

Mouser Part No
845-3C10UR

Altech

Circuit Breakers 10A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

9Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

10 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C15UR
Altech
1: $72.83
26Factory Stock Available

Mfr. Part No.
3C15UR

Mouser Part No
845-3C15UR

Altech

Circuit Breakers 15A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

26Factory Stock Available

More Info Available

$72.83

$72.41

$70.64

View

Min.: 1
Mult.: 1

15 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C16UR
Altech
1: $103.05
14Factory Stock Available

Mfr. Part No.
3C16UR

Mouser Part No
845-3C16UR

Altech

Circuit Breakers 16A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

14Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

16 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C20UR
Altech
1: $72.83
15Factory Stock Available

Mfr. Part No.
3C20UR

Mouser Part No
845-3C20UR

Altech

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

Learn More

Datasheet

15Factory Stock Available

More Info Available

$72.83

$68.23

$66.65

$65.21

View

Min.: 1
Mult.: 1

20 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C25UR
Altech
1: $103.05
11Factory Stock Available

Mfr. Part No.
3C25UR

Mouser Part No
845-3C25UR

Altech

Circuit Breakers 25A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

11Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

25 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C2UR
Altech
1: $103.05
15Factory Stock Available

Mfr. Part No.
3C2UR

Mouser Part No
845-3C2UR

Altech

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

Learn More

Datasheet

15Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

2 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C30UR
Altech
1: $103.05
15Factory Stock Available

Mfr. Part No.
3C30UR

Mouser Part No
845-3C30UR

Altech

Circuit Breakers 30A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

15Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

30 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C40UR
Altech
1: $109.26
46Factory Stock Available

Mfr. Part No.
3C40UR

Mouser Part No
845-3C40UR

Altech

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

Learn More

Datasheet

46Factory Stock Available

More Info Available

$109.26

$90.64

$84.29

$70.24

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

40 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C50UR
Altech
1: $109.26
31Factory Stock Available

Mfr. Part No.
3C50UR

Mouser Part No
845-3C50UR

Altech

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

Learn More

Datasheet

31Factory Stock Available

More Info Available

$109.26

$90.64

$84.29

$70.24

View

Min.: 1
Mult.: 1

50 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C5UR
Altech
1: $103.05
2Factory Stock Available

Mfr. Part No.
3C5UR

Mouser Part No
845-3C5UR

Altech

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

Learn More

Datasheet

2Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

5 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A,MCB C CHAR 3PL 480Y/277VAC, UL1077

3C6UR
Altech
1: $103.05
21Factory Stock Available

Mfr. Part No.
3C6UR

Mouser Part No
845-3C6UR

Altech

Circuit Breakers 6A,MCB C CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

21Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

6 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 0.5A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D05UR
Altech
1: $103.05
1Factory Stock Available

Mfr. Part No.
3D05UR

Mouser Part No
845-3D05UR

Altech

Circuit Breakers 0.5A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

1Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

500 mA

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D10UR
Altech
1: $103.05
25Factory Stock Available

Mfr. Part No.
3D10UR

Mouser Part No
845-3D10UR

Altech

Circuit Breakers 10A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

25Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

10 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3D20UR
Altech
1: $103.05
70Factory Stock Available

Mfr. Part No.
3D20UR

Mouser Part No
845-3D20UR

Altech

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

Learn More

Datasheet

70Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

20 A

277 VAC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A,MCB D CHAR 3PL 480Y/277VAC, UL1077

3D25UR
Altech
1: $103.05
18Factory Stock Available

Mfr. Part No.
3D25UR

Mouser Part No
845-3D25UR

Altech

Circuit Breakers 25A,MCB D CHAR 3PL 480Y/277VAC, UL1077

Learn More

Datasheet

18Factory Stock Available

More Info Available

$103.05

$85.49

$79.51

$66.25

View

Min.: 1
Mult.: 1

25 A

277 VAC

3 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