Circuit Breakers – Mouser Canada

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UM (V-EA) Circuit Breakers

Altech UM (V-EA) Circuit Breakers are UL 508-listed manual motor controllers that are suitable as motor disconnects. These DIN-rail-mounted circuit breakers are thermal magnetic and have a width of 17.5mm per pole. The series features a 0.3A to 60A current rating, 277V_AC voltage rating, and 10kA short circuit withstand capacity. Altech UM (V-EA) Circuit Breakers are ideal for use in AC motor starting, AC general use, AC resistance, AC discharge lamp, and AC incandescent lamp applications.

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Part #

Circuit Breakers 4A MCB CCHAR 3 PL 480Y/277VAC UL508

3C4UM
Altech
1: $152.40
10Expected 2026-06-22

Mfr. Part #
3C4UM

Mouser Part #
845-3C4UM

Altech

Circuit Breakers 4A MCB CCHAR 3 PL 480Y/277VAC UL508

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Datasheet

10Expected 2026-06-22

$152.40

$127.49

$120.79

$100.66

$93.95

Min.: 1
Mult.: 1

4 A

277 VAC

80 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A MCB CCHAR 1pl 277VAC UL508

1C5UM
Altech
1: $48.90
17Expected 2026-05-22

Mfr. Part #
1C5UM

Mouser Part #
845-1C5UM

Altech

Circuit Breakers 5A MCB CCHAR 1pl 277VAC UL508

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Datasheet

17Expected 2026-05-22

$48.90

$44.24

$36.87

$36.66

View

Min.: 1
Mult.: 1

Circuit Breaker

C-Trip

5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A D Characteristic UL 508 1 POLE

1D15UM
Altech
1: $36.87
5Expected 2026-06-19

Mfr. Part #
1D15UM

Mouser Part #
845-1D15UM

Altech

Circuit Breakers 15A D Characteristic UL 508 1 POLE

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Datasheet

5Expected 2026-06-19

$36.87

$33.51

$31.93

$30.89

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

15 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A D Characteristic UL 508 1 POLE

1D5UM
Altech
1: $36.87
9On Order

Mfr. Part #
1D5UM

Mouser Part #
845-1D5UM

Altech

Circuit Breakers 5A D Characteristic UL 508 1 POLE

Learn More

Datasheet

9On Order

$36.87

$35.99

$33.51

$31.93

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A MCB DCHAR 1P+N 277VAC UL508

2D16UM
Altech
1: $73.78
25Expected 2026-06-29

Mfr. Part #
2D16UM

Mouser Part #
845-2D16UM

Altech

Circuit Breakers 16A MCB DCHAR 1P+N 277VAC UL508

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Datasheet

25Expected 2026-06-29

$73.78

$72.66

$66.88

$64.56

View

Min.: 1
Mult.: 1

16 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A MCB DCHAR 1P+N 277VAC UL508

2D20UM
Altech
1: $106.28
32On Order

Mfr. Part #
2D20UM

Mouser Part #
845-2D20UM

Altech

Circuit Breakers 20A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

32On Order

$106.28

$88.18

$81.33

$67.32

View

Min.: 1
Mult.: 1

Circuit Breaker

D-Trip

20 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A MCB CCHARL 480Y/277VAC UL508

3C6UM
Altech
1: $152.40
1Expected 2026-06-01

Mfr. Part #
3C6UM

Mouser Part #
845-3C6UM

Altech

Circuit Breakers 6A MCB CCHARL 480Y/277VAC UL508

Learn More

Datasheet

1Expected 2026-06-01

$152.40

$127.49

$120.79

$100.66

$93.95

Min.: 1
Mult.: 1

6 A

277 VAC

80 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A D Characteristic UL 508 3 POLE

3D15UM
Altech
1: $110.64
5Expected 2026-07-07

Mfr. Part #
3D15UM

Mouser Part #
845-3D15UM

Altech

Circuit Breakers 15A D Characteristic UL 508 3 POLE

Learn More

Datasheet

5Expected 2026-07-07

$110.64

$108.95

$104.16

$102.28

View

Min.: 1
Mult.: 1

15 A

277 VAC

60 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A D Characteristic UL 508 1 POLE

1D25UM
Altech
1: $56.79
4Factory Stock Available

Mfr. Part #
1D25UM

Mouser Part #
845-1D25UM

Altech

Circuit Breakers 25A D Characteristic UL 508 1 POLE

Learn More

Datasheet

4Factory Stock Available

More Info Available

$56.79

$47.10

$43.46

$36.01

View

Min.: 1
Mult.: 1

25 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A D Characteristic UL 508 1 POLE

1D50UM
Altech
1: $63.43
55Factory Stock Available

Mfr. Part #
1D50UM

Mouser Part #
845-1D50UM

Altech

Circuit Breakers 50A D Characteristic UL 508 1 POLE

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Datasheet

55Factory Stock Available

More Info Available

$63.43

$52.61

$48.53

$40.67

View

Min.: 1
Mult.: 1

50 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A D Characteristic UL 508 1 POLE

1D6UM
Altech
1: $56.79
5Factory Stock Available

Mfr. Part #
1D6UM

Mouser Part #
845-1D6UM

Altech

Circuit Breakers 6A D Characteristic UL 508 1 POLE

Learn More

Datasheet

5Factory Stock Available

More Info Available

$56.79

$47.10

$43.46

$36.01

View

Min.: 1
Mult.: 1

6 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A CRT BKR ECHAR 277VAC UL508

1E15UM
Altech
1: $36.87
39Factory Stock Available

Mfr. Part #
1E15UM

Mouser Part #
845-1E15UM

Altech

Circuit Breakers 15A CRT BKR ECHAR 277VAC UL508

Learn More

Datasheet

39Factory Stock Available

More Info Available

$36.87

$34.83

$33.40

$32.33

View

Min.: 1
Mult.: 1

Circuit Breaker

E-Trip

15 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A CRT BRKR ECHAR 277VAC UL508

1E5UM
Altech
1: $36.87
3Factory Stock Available

Mfr. Part #
1E5UM

Mouser Part #
845-1E5UM

Altech

Circuit Breakers 5A CRT BRKR ECHAR 277VAC UL508

Learn More

Datasheet

3Factory Stock Available

More Info Available

$36.87

$34.83

$33.40

$32.33

View

Min.: 1
Mult.: 1

5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A G Characteristic UL 508 1 POLE

1G5UM
Altech
1: $36.87
146Factory Stock Available

Mfr. Part #
1G5UM

Mouser Part #
845-1G5UM

Altech

Circuit Breakers 5A G Characteristic UL 508 1 POLE

Learn More

Datasheet

146Factory Stock Available

More Info Available

$36.87

$36.15

$34.10

$30.89

View

Min.: 1
Mult.: 1

5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A MCB DCHAR 1P+N 277VAC UL508

2D15UM
Altech
1: $73.78
24Factory Stock Available

Mfr. Part #
2D15UM

Mouser Part #
845-2D15UM

Altech

Circuit Breakers 15A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

24Factory Stock Available

More Info Available

$73.78

$72.25

$67.60

$65.86

View

Min.: 1
Mult.: 1

15 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 40A MCB DCHAR 1P+N 277VAC UL508

2D40UM
Altech
1: $118.62
20Factory Stock Available

Mfr. Part #
2D40UM

Mouser Part #
845-2D40UM

Altech

Circuit Breakers 40A MCB DCHAR 1P+N 277VAC UL508

Learn More

Datasheet

20Factory Stock Available

More Info Available

$118.62

$98.39

$91.51

$76.26

View

Min.: 1
Mult.: 1

40 A

277 VAC

60 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1A CRT BRKR ECHAR 277VAC UL508

2E1UM
Altech
1: $106.28
10Factory Stock Available

Mfr. Part #
2E1UM

Mouser Part #
845-2E1UM

Altech

Circuit Breakers 1A CRT BRKR ECHAR 277VAC UL508

Learn More

Datasheet

10Factory Stock Available

More Info Available

$106.28

$88.18

$81.33

$67.32

View

Min.: 1
Mult.: 1

1 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers CRT BRKR ECHAR 277VAC UL508

2E2UM
Altech
1: $106.28
5Factory Stock Available

Mfr. Part #
2E2UM

Mouser Part #
845-2E2UM

Altech

Circuit Breakers CRT BRKR ECHAR 277VAC UL508

Learn More

Datasheet

5Factory Stock Available

More Info Available

$106.28

$88.18

$81.33

$67.32

View

Min.: 1
Mult.: 1

2 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12A MCB GCHAR 1P+N 277VAC UL508

2G12UM
Altech
1: $106.28
7Factory Stock Available

Mfr. Part #
2G12UM

Mouser Part #
845-2G12UM

Altech

Circuit Breakers 12A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

7Factory Stock Available

More Info Available

$106.28

$88.18

$81.33

$67.32

View

Min.: 1
Mult.: 1

12 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A MCB GCHAR 277VAC UL508

2G13UM
Altech
1: $106.28
12Factory Stock Available

Mfr. Part #
2G13UM

Mouser Part #
845-2G13UM

Altech

Circuit Breakers 13A MCB GCHAR 277VAC UL508

Learn More

Datasheet

12Factory Stock Available

More Info Available

$106.28

$88.18

$81.33

$67.32

View

Min.: 1
Mult.: 1

13 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A MCB GCHAR 1P+N 277VAC UL508

2G15UM
Altech
1: $73.78
19Factory Stock Available

Mfr. Part #
2G15UM

Mouser Part #
845-2G15UM

Altech

Circuit Breakers 15A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

19Factory Stock Available

More Info Available

$73.78

$73.76

$72.04

$70.51

View

Min.: 1
Mult.: 1

15 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A MCB GCHAR 1P+N 277VAC UL508

2G16UM
Altech
1: $73.78
200Factory Stock Available

Mfr. Part #
2G16UM

Mouser Part #
845-2G16UM

Altech

Circuit Breakers 16A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

200Factory Stock Available

More Info Available

$73.78

$69.80

$66.93

$64.42

View

Min.: 1
Mult.: 1

16 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A MCB GCHAR 1P+N 277VAC UL508

2G20UM
Altech
1: $73.78
37Factory Stock Available

Mfr. Part #
2G20UM

Mouser Part #
845-2G20UM

Altech

Circuit Breakers 20A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

37Factory Stock Available

More Info Available

$73.78

$72.25

$67.60

$65.86

View

Min.: 1
Mult.: 1

20 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A MCB GCHAR 1P+N 277VAC UL508

2G30UM
Altech
1: $106.28
6Factory Stock Available

Mfr. Part #
2G30UM

Mouser Part #
845-2G30UM

Altech

Circuit Breakers 30A MCB GCHAR 1P+N 277VAC UL508

Learn More

Datasheet

6Factory Stock Available

More Info Available

$106.28

$88.18

$81.33

$67.32

View

Min.: 1
Mult.: 1

30 A

277 VAC

60 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A CRT BRKR CCHAR 277VAC UL508

3C15UM
Altech
1: $152.40
2Factory Stock Available

Mfr. Part #
3C15UM

Mouser Part #
845-3C15UM

Altech

Circuit Breakers 15A CRT BRKR CCHAR 277VAC UL508

Learn More

Datasheet

2Factory Stock Available

More Info Available

$152.40

$127.49

$120.79

$100.66

$93.95

Min.: 1
Mult.: 1

15 A

277 VAC

80 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

UM (V-EA) Circuit Breakers

Mouser Electronics®

Company

Resources

Support

300 mA
500 mA
750 mA
800 mA
1 A
1.6 A
2 A
2.5 A
3 A
3.5 A
4 A
5 A
6 A
8 A
10 A
12 A
12.5 A
13 A
15 A
16 A