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UM Series Circuit Breakers

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Part #

Circuit Breakers 50A MCB CCHAR 1pl 277VAC UL508

1C50UM
Altech
1: $58.52
Non-Stocked

Mfr. Part No.
1C50UM

Mouser Part No
845-1C50UM

Altech

Circuit Breakers 50A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

Non-Stocked

$58.52

$48.53

$44.77

$37.52

View

Min.: 1
Mult.: 1

50 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A MCB CCHAR 1pl 277VAC UL508

1C60UM
Altech
1: $38.68
Non-Stocked

Mfr. Part No.
1C60UM

Mouser Part No
845-1C60UM

Altech

Circuit Breakers 60A MCB CCHAR 1pl 277VAC UL508

Learn More

Datasheet

Non-Stocked

$38.68

$36.29

$35.04

$33.91

View

Min.: 1
Mult.: 1

60 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 63A MCB CCHAR 1pl 277VAC

1C63UM
Altech
1: $38.68
Non-Stocked

Mfr. Part No.
1C63UM

Mouser Part No
845-1C63UM

Altech

Circuit Breakers 63A MCB CCHAR 1pl 277VAC

Learn More

Datasheet

Non-Stocked

$38.68

$36.29

$35.04

$33.91

View

Min.: 1
Mult.: 1

63 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers .5A MCB DCHAR 1pl 277VAC UL508

1D05UM
Altech
1: $52.40
Non-Stocked

Mfr. Part No.
1D05UM

Mouser Part No
845-1D05UM

Altech

Circuit Breakers .5A MCB DCHAR 1pl 277VAC UL508

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Datasheet

Non-Stocked

$52.40

$43.46

$40.10

$33.22

View

Min.: 1
Mult.: 1

500 mA

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 63A MCB DChar 1 pl 277VAC

1D63UM
Altech
1: $38.68
Non-Stocked

Mfr. Part No.
1D63UM

Mouser Part No
845-1D63UM

Altech

Circuit Breakers 63A MCB DChar 1 pl 277VAC

Learn More

Datasheet

Non-Stocked

$38.68

$36.29

$35.04

$33.91

View

Min.: 1
Mult.: 1

63 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12.5A CRT BKR ECHAR 277VAC UL508

1E125UM
Altech
1: $52.40
Non-Stocked

Mfr. Part No.
1E125UM

Mouser Part No
845-1E125UM

Altech

Circuit Breakers 12.5A CRT BKR ECHAR 277VAC UL508

Learn More

Datasheet

Non-Stocked

$52.40

$43.46

$40.10

$33.22

View

Min.: 1
Mult.: 1

12.5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 32A CRT BKR ECHAR 277VAC UL508

1E32UM
Altech
1: $34.02
Non-Stocked

Mfr. Part No.
1E32UM

Mouser Part No
845-1E32UM

Altech

Circuit Breakers 32A CRT BKR ECHAR 277VAC UL508

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Datasheet

Non-Stocked

$34.02

$32.13

$30.82

$29.83

View

Min.: 1
Mult.: 1

32 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 60A CRT BKR ECHAR 277VAC UL508

1E60UM
Altech
1: $38.68
Non-Stocked

Mfr. Part No.
1E60UM

Mouser Part No
845-1E60UM

Altech

Circuit Breakers 60A CRT BKR ECHAR 277VAC UL508

Learn More

Datasheet

Non-Stocked

$38.68

$36.29

$35.04

$33.91

View

Min.: 1
Mult.: 1

60 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A CRT BRKR 1 pl E Char

1E63UM
Altech
1: $38.68
Non-Stocked

Mfr. Part No.
1E63UM

Mouser Part No
845-1E63UM

Altech

Circuit Breakers 3A CRT BRKR 1 pl E Char

Learn More

Datasheet

Non-Stocked

$38.68

$36.29

$35.04

$33.91

View

Min.: 1
Mult.: 1

63 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12.5A G CHAR UL 508 1 POLE

1G125UM
Altech
1: $34.02
Non-Stocked

Mfr. Part No.
1G125UM

Mouser Part No
845-1G125UM

Altech

Circuit Breakers 12.5A G CHAR UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$34.02

$32.13

$30.82

$29.83

View

Min.: 1
Mult.: 1

12.5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A G Characteristic UL 508 1 POLE

1G13UM
Altech
1: $52.40
Non-Stocked

Mfr. Part No.
1G13UM

Mouser Part No
845-1G13UM

Altech

Circuit Breakers 13A G Characteristic UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$52.40

$43.46

$40.10

$33.22

View

Min.: 1
Mult.: 1

13 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 15A G Characteristic UL 508 1 POLE

1G15UM
Altech
1: $34.02
Non-Stocked

Mfr. Part No.
1G15UM

Mouser Part No
845-1G15UM

Altech

Circuit Breakers 15A G Characteristic UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$34.02

$34.01

$32.55

$31.93

View

Min.: 1
Mult.: 1

15 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 1A G Characteristic UL 508 1 POLE

1G1UM
Altech
1: $52.40
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
1G1UM

Mouser Part No
845-1G1UM

Altech

Circuit Breakers 1A G Characteristic UL 508 1 POLE

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

$52.40

$43.46

$40.10

$33.22

View

Min.: 1
Mult.: 1

1 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3A G Characteristic UL 508 1 POLE

1G3UM
Altech
1: $34.02
Non-Stocked

Mfr. Part No.
1G3UM

Mouser Part No
845-1G3UM

Altech

Circuit Breakers 3A G Characteristic UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$34.02

$34.01

$32.69

$31.60

View

Min.: 1
Mult.: 1

3 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A G Characteristic UL 508 1 POLE

1G50UM
Altech
1: $38.68
Non-Stocked

Mfr. Part No.
1G50UM

Mouser Part No
845-1G50UM

Altech

Circuit Breakers 50A G Characteristic UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$38.68

$36.29

$35.04

$33.91

View

Min.: 1
Mult.: 1

50 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 63A MCB GCHAR 1pl 277VAC

1G63UM
Altech
1: $58.52
Non-Stocked

Mfr. Part No.
1G63UM

Mouser Part No
845-1G63UM

Altech

Circuit Breakers 63A MCB GCHAR 1pl 277VAC

Learn More

Datasheet

Non-Stocked

$58.52

$48.53

$44.77

$37.52

View

Min.: 1
Mult.: 1

63 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers .75A Z Char. UL 508 1 POLE

1Z075UM
Altech
1: $66.22
Non-Stocked

Mfr. Part No.
1Z075UM

Mouser Part No
845-1Z075UM

Altech

Circuit Breakers .75A Z Char. UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$66.22

$66.17

$60.37

$58.30

View

Min.: 1
Mult.: 1

750 mA

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 12.5A Z CHAR UL 508 1 POLE

1Z125UM
Altech
1: $60.92
Non-Stocked

Mfr. Part No.
1Z125UM

Mouser Part No
845-1Z125UM

Altech

Circuit Breakers 12.5A Z CHAR UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$60.92

$60.88

$55.53

$53.64

View

Min.: 1
Mult.: 1

12.5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 3.5A MCB ZCHAR 1pl 277VAC UL508

1Z3.5UM
Altech
1: $66.22
Non-Stocked

Mfr. Part No.
1Z3.5UM

Mouser Part No
845-1Z3.5UM

Altech

Circuit Breakers 3.5A MCB ZCHAR 1pl 277VAC UL508

Learn More

Datasheet

Non-Stocked

$66.22

$66.17

$60.37

$58.30

View

Min.: 1
Mult.: 1

Circuit Breaker

Z-Trip

3.5 A

277 VAC

42 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 50A Z Characteristic UL 508 1 POLE

1Z50UM
Altech
1: $71.77
Non-Stocked

Mfr. Part No.
1Z50UM

Mouser Part No
845-1Z50UM

Altech

Circuit Breakers 50A Z Characteristic UL 508 1 POLE

Learn More

Datasheet

Non-Stocked

$71.77

$71.16

$65.35

$63.19

View

Min.: 1
Mult.: 1

50 A

277 VAC

24 VDC

1 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2B1.6UM, 1.6A, CIRCUIT BREAKER

2B1.6UM
Altech
1: $98.06
Non-Stocked

Mfr. Part No.
2B1.6UM

Mouser Part No
845-2B1.6UM

Altech

Circuit Breakers 2B1.6UM, 1.6A, CIRCUIT BREAKER

Learn More

Datasheet

Non-Stocked

$98.06

$81.35

$75.03

$62.10

View

Min.: 1
Mult.: 1

Circuit Breaker

B-Trip

1.6 A

277 VAC

42 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 13A MCB B CHAR 1P+N 277VAC UL508

2B13UM
Altech
1: $98.06
Non-Stocked

Mfr. Part No.
2B13UM

Mouser Part No
845-2B13UM

Altech

Circuit Breakers 13A MCB B CHAR 1P+N 277VAC UL508

Learn More

Datasheet

Non-Stocked

$98.06

$81.35

$75.03

$62.10

View

Min.: 1
Mult.: 1

13 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

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

2B16UM
Altech
1: $68.07
Non-Stocked

Mfr. Part No.
2B16UM

Mouser Part No
845-2B16UM

Altech

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

Learn More

Datasheet

Non-Stocked

$68.07

$66.37

$64.65

$63.03

Quote

Min.: 1
Mult.: 1

16 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2B2.5UM, 2.5A, CIRCUIT BREAKER

2B2.5UM
Altech
1: $98.06
Non-Stocked

Mfr. Part No.
2B2.5UM

Mouser Part No
845-2B2.5UM

Altech

Circuit Breakers 2B2.5UM, 2.5A, CIRCUIT BREAKER

Learn More

Datasheet

Non-Stocked

$98.06

$81.35

$75.03

$62.10

View

Min.: 1
Mult.: 1

Circuit Breaker

B-Trip

2.5 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

Circuit Breakers 2B3.5UM, 3.5A, CIRCUIT BREAKER

2B3.5UM
Altech
1: $68.07
Non-Stocked

Mfr. Part No.
2B3.5UM

Mouser Part No
845-2B35UM

Altech

Circuit Breakers 2B3.5UM, 3.5A, CIRCUIT BREAKER

Learn More

Datasheet

Non-Stocked

$68.07

$67.47

$61.72

$59.69

View

Min.: 1
Mult.: 1

Circuit Breaker

B-Trip

3.5 A

277 VAC

80 VDC

2 Pole

Handle

- 25 C

+ 55 C

Non-Illuminated

UM Series 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