Circuit Breakers – Mouser Singapore

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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 10A MCB CCHAR 3 PL 480Y/277VAC UL508

3C10UM
Altech
1: $102.68
32In Stock

Mfr. Part No.
3C10UM

Mouser Part No
845-3C10UM

Altech

Circuit Breakers 10A MCB CCHAR 3 PL 480Y/277VAC UL508

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Datasheet

32In Stock

$102.68

$93.24

$90.71

$89.07

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Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

10 A

277 VAC

80 VDC

3 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 40A D Characteristic UL 508 1 POLE

1D40UM
Altech
1: $52.25
11In Stock
1Expected 16/10/2026

Mfr. Part No.
1D40UM

Mouser Part No
845-1D40UM

Altech

Circuit Breakers 40A D Characteristic UL 508 1 POLE

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Datasheet

11In Stock

1Expected 16/10/2026

$52.25

$44.15

$42.57

$33.50

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Min.: 1
Mult.: 1

40 A

277 VAC

24 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

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

3C6UM
Altech
1: $130.32
1In Stock

Mfr. Part No.
3C6UM

Mouser Part No
845-3C6UM

Altech

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

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Datasheet

1In Stock

$130.32

$97.08

$96.46

$90.21

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Min.: 1
Mult.: 1

6 A

277 VAC

80 VDC

3 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A CRT BRKR ECHAR 277VAC UL508

3E5UM
Altech
1: $130.32
2In Stock

Mfr. Part No.
3E5UM

Mouser Part No
845-3E5UM

Altech

Circuit Breakers 5A CRT BRKR ECHAR 277VAC UL508

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Datasheet

2In Stock

$130.32

$97.08

$96.46

$90.21

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Min.: 1
Mult.: 1

5 A

277 VAC

80 VDC

3 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A Z Characteristic UL 508 1 POLE

1Z13UM
Altech
1: $80.04
11In Stock

Mfr. Part No.
1Z13UM

Mouser Part No
845-1Z13UM

Altech

Circuit Breakers 13A Z Characteristic UL 508 1 POLE

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Datasheet

11In Stock

$80.04

$69.21

$63.84

$50.93

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Min.: 1
Mult.: 1

Circuit Breakers

Z-Trip

13 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508

1G3.5UM
Altech
1: $46.43
3In Stock

Mfr. Part No.
1G3.5UM

Mouser Part No
845-1G3.5UM

Altech

Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508

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Datasheet

3In Stock

$46.43

$32.35

$31.25

$29.89

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Min.: 1
Mult.: 1

Circuit Breakers

G-Trip

3.5 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A Z Characteristic UL 508 1 POLE

1Z32UM
Altech
1: $80.04
12In Stock

Mfr. Part No.
1Z32UM

Mouser Part No
845-1Z32UM

Altech

Circuit Breakers 32A Z Characteristic UL 508 1 POLE

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Datasheet

12In Stock

$80.04

$69.22

$63.85

$53.96

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Min.: 1
Mult.: 1

32 A

277 VAC

24 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1BU3A MCB B CHar 1 pl 277V UL 508

1B3UM
Altech
1: $46.43
1In Stock

Mfr. Part No.
1B3UM

Mouser Part No
845-1B3UM

Altech

Circuit Breakers 1BU3A MCB B CHar 1 pl 277V UL 508

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Datasheet

1In Stock

$46.43

$32.35

$31.25

$29.89

View

Min.: 1
Mult.: 1

3 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3D1UM, 1A,CIRCUIT BREAKER

3D1UM
Altech
1: $130.32
7In Stock

Mfr. Part No.
3D1UM

Mouser Part No
845-3D1UM

Altech

Circuit Breakers 3D1UM, 1A,CIRCUIT BREAKER

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Datasheet

7In Stock

$130.32

$111.85

$97.08

$91.64

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

1 A

277 VAC

80 VDC

3 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A MCB B CHAR 3 PL 480Y/277VAC UL508

3B20UM
Altech
1: $130.32
32In Stock

Mfr. Part No.
3B20UM

Mouser Part No
845-3B20UM

Altech

Circuit Breakers 20A MCB B CHAR 3 PL 480Y/277VAC UL508

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Datasheet

32In Stock

$130.32

$111.83

$105.96

$90.21

View

Min.: 1
Mult.: 1

20 A

277 VAC

60 VDC

3 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A MCB B Char 1pl 277VAC UL508

1B13UM
Altech
1: $56.37
1In Stock

Mfr. Part No.
1B13UM

Mouser Part No
845-1B13UM

Altech

Circuit Breakers 13A MCB B Char 1pl 277VAC UL508

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Datasheet

1In Stock

$56.37

$32.35

$32.22

$31.18

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Min.: 1
Mult.: 1

13 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A CRT BRKR BCHAR 1pl UL508

1B15UM
Altech
1: $46.43
10In Stock

Mfr. Part No.
1B15UM

Mouser Part No
845-1B15UM

Altech

Circuit Breakers 15A CRT BRKR BCHAR 1pl UL508

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Datasheet

10In Stock

$46.43

$38.81

$38.13

$30.56

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

15 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A CRT BRKR BCHAR 1pl UL508

1B30UM
Altech
1: $46.43
10In Stock

Mfr. Part No.
1B30UM

Mouser Part No
845-1B30UM

Altech

Circuit Breakers 30A CRT BRKR BCHAR 1pl UL508

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Datasheet

10In Stock

$46.43

$38.81

$38.13

$31.25

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

30 A

277 VAC

24 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers .3A MCB CChar 1pl 277VAC UL508

1C03UM
Altech
1: $46.43
2In Stock

Mfr. Part No.
1C03UM

Mouser Part No
845-1C03UM

Altech

Circuit Breakers .3A MCB CChar 1pl 277VAC UL508

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Datasheet

2In Stock

$46.43

$32.35

$32.19

$29.62

View

Min.: 1
Mult.: 1

300 mA

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A MCB CCHAR 1pl 277VAC UL508

1C10UM
Altech
1: $41.14
25In Stock

Mfr. Part No.
1C10UM

Mouser Part No
845-1C10UM

Altech

Circuit Breakers 10A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

25In Stock

$41.14

$37.93

$30.56

$29.31

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

10 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A CRT BRKR CCHAR 277VAC UL508

1C15UM
Altech
1: $46.43
1In Stock

Mfr. Part No.
1C15UM

Mouser Part No
845-1C15UM

Altech

Circuit Breakers 5A CRT BRKR CCHAR 277VAC UL508

Learn More

Datasheet

1In Stock

$46.43

$32.35

$30.75

$29.34

View

Min.: 1
Mult.: 1

15 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A MCB CCHAR 1pl 277VAC UL508

1C16UM
Altech
1: $46.43
1In Stock

Mfr. Part No.
1C16UM

Mouser Part No
845-1C16UM

Altech

Circuit Breakers 16A MCB CCHAR 1pl 277VAC UL508

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Datasheet

1In Stock

$46.43

$32.35

$30.90

$29.70

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

16 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2A MCB CCHAR 1pl 277VAC UL508

1C2UM
Altech
1: $43.00
13In Stock

Mfr. Part No.
1C2UM

Mouser Part No
845-1C2UM

Altech

Circuit Breakers 2A MCB CCHAR 1pl 277VAC UL508

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Datasheet

13In Stock

$43.00

$38.81

$35.21

$31.50

View

Min.: 1
Mult.: 1

2 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A MCB CCHAR 1pl 277VAC UL508

1C3UM
Altech
1: $32.35
3In Stock

Mfr. Part No.
1C3UM

Mouser Part No
845-1C3UM

Altech

Circuit Breakers 3A MCB CCHAR 1pl 277VAC UL508

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Datasheet

3In Stock

$32.35

$32.23

$31.28

$30.63

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

3 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 4A MCB CCHAR 1pl 277VAC UL508

1C4UM
Altech
1: $46.43
8In Stock

Mfr. Part No.
1C4UM

Mouser Part No
845-1C4UM

Altech

Circuit Breakers 4A MCB CCHAR 1pl 277VAC UL508

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Datasheet

8In Stock

$46.43

$38.81

$32.35

$31.97

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

4 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A MCB CCHAR 1pl 277VAC UL508

1C5UM
Altech
1: $42.91
13In Stock

Mfr. Part No.
1C5UM

Mouser Part No
845-1C5UM

Altech

Circuit Breakers 5A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

13In Stock

$42.91

$38.81

$37.47

$32.35

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

5 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A MCB CCHAR 1pl 277VAC UL508

1C6UM
Altech
1: $54.24
14In Stock

Mfr. Part No.
1C6UM

Mouser Part No
845-1C6UM

Altech

Circuit Breakers 6A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

14In Stock

$54.24

$49.52

$38.81

$32.35

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

6 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 8A MCB CCHAR 1pl 277VAC UL508

1C8UM
Altech
1: $53.09
1In Stock

Mfr. Part No.
1C8UM

Mouser Part No
845-1C8UM

Altech

Circuit Breakers 8A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

1In Stock

$53.09

$32.35

$31.63

$31.02

Quote

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

8 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A D Characteristic UL 508 1 POLE

1D10UM
Altech
1: $39.41
24In Stock

Mfr. Part No.
1D10UM

Mouser Part No
845-1D10UM

Altech

Circuit Breakers 10A D Characteristic UL 508 1 POLE

Learn More

Datasheet

24In Stock

$39.41

$37.18

$35.28

$30.41

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

10 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A D Characteristic UL 508 1 POLE

1D15UM
Altech
1: $46.43
4In Stock

Mfr. Part No.
1D15UM

Mouser Part No
845-1D15UM

Altech

Circuit Breakers 15A D Characteristic UL 508 1 POLE

Learn More

Datasheet

4In Stock

$46.43

$32.35

$32.34

$30.59

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

15 A

277 VAC

42 VDC

1 Pole

- 25 C

+ 55 C

Non-Illuminated

UM (V-EA) Circuit Breakers

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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