Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
360°
+7 images
3120-N321-P7T1-W12FY4-0.3A
E-T-A
1:
$65.86
5 In Stock
Mouser Part No 457-321P7T1W12FY40.3
E-T-A
Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
5 In Stock
1
$65.86
5
$54.64
10
$44.84
50
$43.86
100
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100
$39.20
250
$38.61
500
Quote
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Min.: 1 Mult.: 1
3120-N
Thermal Circuit Breakers
Overcurrent Protection
300 mA
230 VAC
50 VDC
2 Pole
Rocker
- 30 C
+ 60 C
Illuminated
Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected
360°
+8 images
2-6400-IG1-P10-A3-SI-401103-0.3A
E-T-A
1:
$73.63
4 In Stock
Mouser Part No 457-1P103SI4011030.3
E-T-A
Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected
4 In Stock
1
$73.63
5
$61.08
10
$53.74
50
$47.52
100
View
100
$45.69
250
$44.34
500
Quote
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Min.: 1 Mult.: 1
2-6400
Thermal Circuit Breakers
Overcurrent Protection
300 mA
250 VAC
28 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected
2-6400-iG2-P10-Si-0.3A
E-T-A
1:
$63.99
5 In Stock
Mouser Part No 457-26400IG2P10SI03A
E-T-A
Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected
5 In Stock
1
$63.99
5
$53.09
10
$45.00
50
$41.02
100
View
100
$40.16
250
$39.25
500
Quote
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Min.: 1 Mult.: 1
Details
2-6400
Thermal Circuit Breakers
Overcurrent Protection
300 mA
250 VAC
28 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers Cir Brkr Hyd Mag
IPA-1-1REC4-61-.300-A-01-T
AIRPAX
1:
$53.82
2 In Stock
Mouser Part No 874-IPA11REC46103A1T
AIRPAX
Circuit Breakers Cir Brkr Hyd Mag
2 In Stock
1
$53.82
5
$48.88
10
$47.02
25
$44.51
50
View
50
$40.20
100
$37.73
250
$35.25
500
Quote
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Min.: 1 Mult.: 1
Circuit Breakers
Hydraulic Magnetic
300 mA
1 Pole
Toggle
- 40 C
+ 85 C
Non-Illuminated
Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings
104-PR-0.3A
E-T-A
1:
$22.68
9 In Stock
Mouser Part No 457-104-PR-0.3A
E-T-A
Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934) for PCB mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current ratings
9 In Stock
1
$22.68
5
$20.64
10
$18.92
50
$14.34
100
View
100
$13.44
250
$12.53
500
$11.95
1,000
$11.91
2,500
Quote
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Min.: 1 Mult.: 1
Details
104
Thermal Circuit Breakers
Overcurrent Protection
300 mA
240 VAC
48 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
360°
+7 images
3120-N321-P7T1-W01D-0.3A
E-T-A
1:
$60.33
4 In Stock
Mouser Part No 457-321P7T1W01D0.3A
E-T-A
Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
4 In Stock
1
$60.33
5
$44.62
10
$40.63
50
$39.65
100
View
100
$35.37
250
$34.97
500
Quote
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Min.: 1 Mult.: 1
3120-N
Thermal Circuit Breakers
Overcurrent Protection
300 mA
240 VAC
50 VDC
2 Pole
Rocker
- 30 C
+ 60 C
Non-Illuminated
Circuit Breakers ETA Circuit Breakers
2-6400-IG1-L10-SI-0.3A
E-T-A
1:
$63.99
9 In Stock
Mouser Part No 457-26400IG1L10SI03A
E-T-A
Circuit Breakers ETA Circuit Breakers
9 In Stock
1
$63.99
5
$53.09
10
$45.05
50
$39.70
100
View
100
$38.36
250
$36.99
500
Quote
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Min.: 1 Mult.: 1
Details
2-6400
Thermal Circuit Breakers
Overcurrent Protection
300 mA
250 VAC
28 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati
106-M2-P10-0.3A
E-T-A
1:
$22.68
64 In Stock
Mouser Part No 457-106-M2-P10-0.3A
E-T-A
Circuit Breakers Miniaturised single pole thermal circuit breaker with push-to-reset tease free, trip-free, snap action mechanism (R-type TO CBE to EN 60934), threadneck mounting. Approved to CBE standard EN 60934 (IEC 60934). For higher current rati
64 In Stock
1
$22.68
5
$18.82
10
$17.37
50
$14.38
100
View
100
$13.25
250
$11.89
500
$10.94
Buy
Min.: 1 Mult.: 1
Details
106-M2
Thermal Circuit Breakers
Overcurrent Protection
300 mA
240 VAC
48 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected
2-6400-IG1-P10-SI-0.3A
E-T-A
1:
$51.64
10 In Stock
Mouser Part No 457-26400IG1P10SI0.3
E-T-A
Circuit Breakers Single pole thermal circuit breakers with push-to-reset, tease-free, trip-free, snap action mechanism (R type TO CBE to EN 60934). Featuring auxiliary contacts (1 x N/C; 1 x N/O) as standard. Options include an additional unprotected
10 In Stock
1
$51.64
5
$45.40
10
$41.33
100
$40.21
250
View
250
$39.16
500
Quote
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Min.: 1 Mult.: 1
2-6400
Thermal Circuit Breakers
Overcurrent Protection
300 mA
250 VAC
28 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ
2-5700-IG1-P10-A3-0.3A
E-T-A
1:
$40.73
3 In Stock
Mouser Part No 457-5700IG1P10A30.3A
E-T-A
Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ
3 In Stock
1
$40.73
5
$33.78
10
$29.28
50
$25.84
100
View
100
$22.43
250
$19.50
500
$18.39
1,000
Quote
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Min.: 1 Mult.: 1
Details
Feb-00
Thermal Circuit Breakers
Overcurrent Protection
300 mA
250 VAC
28 VDC
1 Pole
Push to Reset
- 20 C
+ 60 C
Non-Illuminated
Circuit Breakers MCB 5SJ4 1P 277V 0.3A 10K C-TRIP
5SJ41147HG42
Siemens
1:
$82.54
1 In Stock
Mouser Part No 982-5SJ41147HG42
Siemens
Circuit Breakers MCB 5SJ4 1P 277V 0.3A 10K C-TRIP
1 In Stock
1
$82.54
5
$71.87
10
$69.16
50
$64.14
100
View
100
$62.08
250
Quote
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Min.: 1 Mult.: 1
Circuit Breakers
Miniature
300 mA
277 VAC
60 VDC
1 Pole
Lever
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A MCB CChar 1pl 277VAC UL508
1C03UM
Altech
1:
$34.14
2 In Stock
Mouser Part No 845-1C03UM
Altech
Circuit Breakers .3A MCB CChar 1pl 277VAC UL508
2 In Stock
1
$34.14
5
$23.79
10
$23.67
50
$21.78
100
View
100
$20.80
250
$20.07
500
$19.56
2,500
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
42 VDC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489
2D03UL
Altech
1:
$89.86
6 In Stock
Mouser Part No 845-2D03UL
Altech
Circuit Breakers 0.3A, D CHAR, 2POLE 480Y/277VAC,UL489
6 In Stock
1
$89.86
5
$77.26
10
$66.62
50
$62.45
100
View
100
$60.73
250
Quote
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Min.: 1 Mult.: 1
Details
UL
300 mA
277 VAC
2 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER
1C03UL
Altech
1:
$33.53
6 Expected 21/09/2026
Mouser Part No 845-1C03UL
Altech
Circuit Breakers 1C03UL, 0.3A, CIRCUIT BREAKER
6 Expected 21/09/2026
1
$33.53
50
$33.52
100
$33.18
250
$32.27
500
View
500
Quote
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Min.: 1 Mult.: 1
UL
300 mA
277 VAC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers UL489 MCB 2P K 0.3A 480/277
SU202M-K0.3
ABB
1:
$126.54
5 On Order
New At Mouser
Mouser Part No 894-SU202M-K0.3
New At Mouser
ABB
Circuit Breakers UL489 MCB 2P K 0.3A 480/277
5 On Order
View Dates
On Order:
1 Expected 16/10/2026
4 Expected 29/10/2026
Factory Lead Time:
17 Weeks
1
$126.54
5
$109.41
10
$101.34
50
$89.38
100
View
100
$85.25
250
Quote
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Min.: 1 Mult.: 1
SU200M
Circuit Breakers
300 mA
2 Pole
Circuit Breakers 0.3A, D CHAR, 1POLE 277VAC, UL489
1D03UL
Altech
1:
$33.53
10 Factory Stock Available
Mouser Part No 845-1D03UL
Altech
Circuit Breakers 0.3A, D CHAR, 1POLE 277VAC, UL489
10 Factory Stock Available
1
$33.53
100
$33.33
250
$32.43
500
View
500
Quote
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Min.: 1 Mult.: 1
Details
UL
300 mA
277 VAC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A MCB DCHAR 1pl 277VAC UL508
1D03UM
Altech
1:
$23.79
21 Factory Stock Available
Mouser Part No 845-1D03UM
Altech
Circuit Breakers .3A MCB DCHAR 1pl 277VAC UL508
21 Factory Stock Available
1
$23.79
50
$22.61
100
$21.57
250
$20.74
500
View
500
$20.24
1,000
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
42 VDC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A CRT BRKR ECHAR 277VAC UL508
1E03UM
Altech
1:
$23.79
11 Factory Stock Available
Mouser Part No 845-1E03UM
Altech
Circuit Breakers .3A CRT BRKR ECHAR 277VAC UL508
11 Factory Stock Available
1
$23.79
50
$22.98
100
$22.13
250
$21.46
500
View
500
$20.96
1,000
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
42 VDC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A G Characteristic UL 508 1 POLE
1G03UM
Altech
1:
$23.79
14 Factory Stock Available
Mouser Part No 845-1G03UM
Altech
Circuit Breakers .3A G Characteristic UL 508 1 POLE
14 Factory Stock Available
1
$23.79
50
$22.98
100
$22.13
250
$21.46
500
View
500
$20.96
1,000
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
42 VDC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A Z Characteristic UL 508 1 POLE
1Z03UM
Altech
1:
$46.31
8 Factory Stock Available
Mouser Part No 845-1Z03UM
Altech
Circuit Breakers .3A Z Characteristic UL 508 1 POLE
8 Factory Stock Available
1
$46.31
50
$43.30
100
$41.97
250
$40.80
1,000
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1,000
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
42 VDC
1 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers 0.3A, C CHAR, 2POLE 480Y/277VAC,UL489
2C03UL
Altech
1:
$67.05
25 Factory Stock Available
Mouser Part No 845-2C03UL
Altech
Circuit Breakers 0.3A, C CHAR, 2POLE 480Y/277VAC,UL489
25 Factory Stock Available
1
$67.05
50
$66.43
100
$64.37
250
View
250
Quote
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Min.: 1 Mult.: 1
Details
UL
300 mA
277 VAC
2 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A CRT BRKR ECHAR 277VAC UL508
2E03UM
Altech
1:
$47.60
1 Factory Stock Available
Mouser Part No 845-2E03UM
Altech
Circuit Breakers .3A CRT BRKR ECHAR 277VAC UL508
1 Factory Stock Available
1
$47.60
50
$44.51
100
$43.15
250
$41.94
1,000
Quote
1,000
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
80 VDC
2 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A MCB ZCHAR 1P+N 277VAC UL508
2Z03UM
Altech
1:
$93.15
3 Factory Stock Available
Mouser Part No 845-2Z03UM
Altech
Circuit Breakers .3A MCB ZCHAR 1P+N 277VAC UL508
3 Factory Stock Available
1
$93.15
10
$86.37
50
$79.77
100
$77.10
250
View
250
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
80 VDC
2 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers 3D03UM, 0.3A, CIRCUIT BREAKER
3D03UM
Altech
1:
$71.38
1 Factory Stock Available
Mouser Part No 845-3D03UM
Altech
Circuit Breakers 3D03UM, 0.3A, CIRCUIT BREAKER
1 Factory Stock Available
1
$71.38
10
$70.93
50
$66.48
100
$64.66
250
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250
Quote
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Min.: 1 Mult.: 1
UM
300 mA
277 VAC
3 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Circuit Breakers .3A G Characteristic UL 508 3 POLE
3G03UM
Altech
1:
$71.38
3 Factory Stock Available
Mouser Part No 845-3G03UM
Altech
Circuit Breakers .3A G Characteristic UL 508 3 POLE
3 Factory Stock Available
1
$71.38
10
$70.93
50
$66.48
100
$64.66
250
View
250
Quote
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Min.: 1 Mult.: 1
Details
UM
300 mA
277 VAC
80 VDC
3 Pole
Handle
- 25 C
+ 55 C
Non-Illuminated
Israel