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: $24.81
56Factory 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

56Factory Stock Available

More Info Available

$24.81

$24.51

$23.34

$22.57

View

Min.: 1
Mult.: 1

10 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D13UR
Altech
1: $38.86
10Factory Stock Available

Mfr. Part No.
1D13UR

Mouser Part No
845-1D13UR

Altech

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

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Datasheet

10Factory Stock Available

More Info Available

$38.86

$32.25

$29.75

$24.64

View

Min.: 1
Mult.: 1

13 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D1UR
Altech
1: $24.81
1Factory Stock Available

Mfr. Part No.
1D1UR

Mouser Part No
845-1D1UR

Altech

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

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Datasheet

1Factory Stock Available

More Info Available

$24.81

$24.80

$23.09

$22.11

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Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

1 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: $24.33
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

$24.33

$24.13

$22.82

$22.00

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: $24.81
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

$24.81

$24.17

$22.66

$21.82

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: $38.86
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

$38.86

$32.25

$29.75

$24.64

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: $38.86
212Factory 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

212Factory Stock Available

More Info Available

$38.86

$32.25

$29.75

$24.64

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: $41.23
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

$41.23

$34.21

$31.55

$26.15

View

Min.: 1
Mult.: 1

40 A

277 VAC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1D50UR
Altech
1: $41.23
298Factory Stock Available

Mfr. Part No.
1D50UR

Mouser Part No
845-1D50UR

Altech

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

Learn More

Datasheet

298Factory Stock Available

More Info Available

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

2B05UR
Altech
1: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

View

Min.: 1
Mult.: 1

Circuit Breaker

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $77.51
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

$77.51

$64.30

$59.31

$51.03

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

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: $77.51
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

$77.51

$64.30

$59.31

$51.03

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: $73.14
40Factory 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

40Factory Stock Available

More Info Available

$73.14

$60.67

$55.98

$48.15

View

Min.: 1
Mult.: 1

5 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: $73.14
131Factory 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

131Factory Stock Available

More Info Available

$73.14

$60.67

$55.98

$48.15

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: $73.14
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

$73.14

$60.67

$55.98

$48.15

View

Min.: 1
Mult.: 1

8 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: $73.14
29Factory 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

29Factory Stock Available

More Info Available

$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

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

2C15UR
Altech
1: $73.14
3Factory 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

3Factory Stock Available

More Info Available

$73.14

$60.67

$55.98

$48.15

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