Circuit Breakers – Mouser Singapore

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 452

Applied Filters:

Product

Type

Current Rating

Voltage Rating AC

Voltage Rating DC

Number of Poles

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

3C10UM
Altech
1: $85.80
36In Stock

Mfr. Part No.
3C10UM

Mouser Part No
845-3C10UM

Altech

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

Learn More

Datasheet

36In Stock

$85.80

$83.39

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

10 A

277 VAC

80 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508

1G3.5UM
Altech
1: $50.93
3In Stock

Mfr. Part No.
1G3.5UM

Mouser Part No
845-1G3.5UM

Altech

Circuit Breakers 3.5A MCB GCHAR 1pl 277VAC UL508

Learn More

Datasheet

3In Stock

$50.93

$42.24

$38.98

$32.29

View

Min.: 1
Mult.: 1

Circuit Breakers

G-Trip

3.5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

3C6UM
Altech
1: $136.66
1In Stock

Mfr. Part No.
3C6UM

Mouser Part No
845-3C6UM

Altech

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

Learn More

Datasheet

1In Stock

$136.66

$114.33

$108.32

$90.27

$84.25

Min.: 1
Mult.: 1

6 A

277 VAC

80 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3D1UM, 1A,CIRCUIT BREAKER

3D1UM
Altech
1: $136.66
7In Stock

Mfr. Part No.
3D1UM

Mouser Part No
845-3D1UM

Altech

Circuit Breakers 3D1UM, 1A,CIRCUIT BREAKER

Learn More

Datasheet

7In Stock

$136.66

$114.33

$108.32

$90.27

$84.25

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

1 A

277 VAC

80 VDC

3 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A Z Characteristic UL 508 1 POLE

1Z32UM
Altech
1: $85.28
12In Stock

Mfr. Part No.
1Z32UM

Mouser Part No
845-1Z32UM

Altech

Circuit Breakers 32A Z Characteristic UL 508 1 POLE

Learn More

Datasheet

12In Stock

$85.28

$70.75

$65.26

$54.02

View

Min.: 1
Mult.: 1

32 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A MCB B Char 1pl 277VAC UL508

1B10UM
Altech
1: $50.93
4In Stock

Mfr. Part No.
1B10UM

Mouser Part No
845-1B10UM

Altech

Circuit Breakers 10A MCB B Char 1pl 277VAC UL508

Learn More

Datasheet

4In Stock

$50.93

$42.24

$38.98

$32.29

View

Min.: 1
Mult.: 1

Circuit Breakers

B-Trip

10 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1B13UM
Altech
1: $54.64
1In Stock

Mfr. Part No.
1B13UM

Mouser Part No
845-1B13UM

Altech

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

Learn More

Datasheet

1In Stock

$54.64

$33.07

$32.53

$31.59

View

Min.: 1
Mult.: 1

13 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

1B3UM
Altech
1: $47.45
1In Stock

Mfr. Part No.
1B3UM

Mouser Part No
845-1B3UM

Altech

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

Learn More

Datasheet

1In Stock

$47.45

$33.07

$31.23

$29.95

View

Min.: 1
Mult.: 1

3 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A CRT BRKR CCHAR 277VAC UL508

1C15UM
Altech
1: $50.93
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

$50.93

$42.24

$38.98

$32.29

View

Min.: 1
Mult.: 1

15 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A MCB CCHAR 1pl 277VAC UL508

1C16UM
Altech
1: $50.93
1In Stock

Mfr. Part No.
1C16UM

Mouser Part No
845-1C16UM

Altech

Circuit Breakers 16A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

1In Stock

$50.93

$42.24

$38.98

$32.29

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

16 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2A MCB CCHAR 1pl 277VAC UL508

1C2UM
Altech
1: $33.07
28In Stock

Mfr. Part No.
1C2UM

Mouser Part No
845-1C2UM

Altech

Circuit Breakers 2A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

28In Stock

$33.07

$32.71

$32.62

$32.39

View

Min.: 1
Mult.: 1

2 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 5A MCB CCHAR 1pl 277VAC UL508

1C5UM
Altech
1: $43.85
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

$43.85

$39.67

$33.07

$32.87

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 8A MCB CCHAR 1pl 277VAC UL508

1C8UM
Altech
1: $33.07
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

$33.07

$33.01

$32.03

$31.12

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

8 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: $33.07
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

$33.07

$30.36

$28.95

$28.01

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

15 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1A D Characteristic UL 508 1 POLE

1D1UM
Altech
1: $33.07
4In Stock

Mfr. Part No.
1D1UM

Mouser Part No
845-1D1UM

Altech

Circuit Breakers 1A D Characteristic UL 508 1 POLE

Learn More

Datasheet

4In Stock

$33.07

$32.43

$31.53

$30.59

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

1 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2A D Characteristic UL 508 1 POLE

1D2UM
Altech
1: $43.01
1In Stock

Mfr. Part No.
1D2UM

Mouser Part No
845-1D2UM

Altech

Circuit Breakers 2A D Characteristic UL 508 1 POLE

Learn More

Datasheet

1In Stock

$43.01

$33.07

$32.61

$30.36

View

Min.: 1
Mult.: 1

Circuit Breakers

D-Trip

2 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 10A CRT BRKR ECHAR 277VAC UL508

1E10UM
Altech
1: $33.07
5In Stock

Mfr. Part No.
1E10UM

Mouser Part No
845-1E10UM

Altech

Circuit Breakers 10A CRT BRKR ECHAR 277VAC UL508

Learn More

Datasheet

5In Stock

$33.07

$32.73

$31.96

$31.29

View

Min.: 1
Mult.: 1

10 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A CRT BRKR ECHAR 277VAC UL508

1E13UM
Altech
1: $33.07
5In Stock

Mfr. Part No.
1E13UM

Mouser Part No
845-1E13UM

Altech

Circuit Breakers 13A CRT BRKR ECHAR 277VAC UL508

Learn More

Datasheet

5In Stock

$33.07

$31.23

$29.95

$29.00

View

Min.: 1
Mult.: 1

Circuit Breakers

E-Trip

13 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 20A G Characteristic UL 508 1 POLE

1G20UM
Altech
1: $33.07
4In Stock
2Expected 16/6/2026

Mfr. Part No.
1G20UM

Mouser Part No
845-1G20UM

Altech

Circuit Breakers 20A G Characteristic UL 508 1 POLE

Learn More

Datasheet

4In Stock

2Expected 16/6/2026

$33.07

$31.33

$30.64

$30.02

View

Min.: 1
Mult.: 1

Circuit Breakers

G-Trip

20 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 25A G Characteristic UL 508 1 POLE

1G25UM
Altech
1: $50.93
1In Stock

Mfr. Part No.
1G25UM

Mouser Part No
845-1G25UM

Altech

Circuit Breakers 25A G Characteristic UL 508 1 POLE

Learn More

Datasheet

1In Stock

$50.93

$42.24

$38.98

$32.29

View

Min.: 1
Mult.: 1

Circuit Breakers

G-Trip

25 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 30A G Characteristic UL 508 1 POLE

1G30UM
Altech
1: $50.93
1In Stock

Mfr. Part No.
1G30UM

Mouser Part No
845-1G30UM

Altech

Circuit Breakers 30A G Characteristic UL 508 1 POLE

Learn More

Datasheet

1In Stock

$50.93

$42.24

$38.98

$32.28

View

Min.: 1
Mult.: 1

Circuit Breakers

G-Trip

30 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 6A G Characteristic UL 508 1 POLE

1G6UM
Altech
1: $32.68
10In Stock

Mfr. Part No.
1G6UM

Mouser Part No
845-1G6UM

Altech

Circuit Breakers 6A G Characteristic UL 508 1 POLE

Learn More

Datasheet

10In Stock

$32.68

$31.30

$31.07

$30.73

View

Min.: 1
Mult.: 1

6 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 16A Z Characteristic UL 508 1 POLE

1Z16UM
Altech
1: $85.28
2In Stock

Mfr. Part No.
1Z16UM

Mouser Part No
845-1Z16UM

Altech

Circuit Breakers 16A Z Characteristic UL 508 1 POLE

Learn More

Datasheet

2In Stock

$85.28

$70.75

$65.26

$54.02

View

Min.: 1
Mult.: 1

16 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A CRT BRKR CCHAR 277VAC UL508

2C15UM
Altech
1: $95.31
7In Stock

Mfr. Part No.
2C15UM

Mouser Part No
845-2C15UM

Altech

Circuit Breakers 15A CRT BRKR CCHAR 277VAC UL508

Learn More

Datasheet

7In Stock

$95.31

$79.08

$72.93

$60.37

View

Min.: 1
Mult.: 1

Circuit Breakers

C-Trip

15 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1A MCB CCHAR 1P+N 277VAC UL508

2C1UM
Altech
1: $91.84
3In Stock

Mfr. Part No.
2C1UM

Mouser Part No
845-2C1UM

Altech

Circuit Breakers 1A MCB CCHAR 1P+N 277VAC UL508

Learn More

Datasheet

3In Stock

$91.84

$79.08

$65.58

$59.99

View

Min.: 1
Mult.: 1

1 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

UM (V-EA) Circuit Breakers

Customer Service Office

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