Circuit Breaker
| Part | RoHS | Manufacturer | Circuit Protection Type | Mounting Feature | Rated AC Voltage | Rated DC Voltage | Rated Current | Terminal Shape | Minimum Operating Temperature | Terminal Finish | Rated Breaking Capacity | Manufacturer Series | Trip Time/Delay | Additional Features | Actuator Type | Packing Method | Body Length/Diameter | Body Width | Environmental Characteristics | JESD-609 Code | Dimensions | Circuit Function | Body Height | Reference Standard | No. of Poles | Maximum Operating Temperature | Blow Characteristic |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
690 V |
1 KV |
100 A |
Screw |
-25 °C (-13 °F) |
65 kA |
Toggle |
7.3 in (185.42 mm) |
5.5 in (139.7 mm) |
IP40 |
7.3 x 5.5 x 3.3 in (185.42 x 139.7 x 83.82 mm) |
Trip |
3.3 in (83.82 mm) |
4 |
70 °C (158 °F) |
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|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
690 V |
600 V |
100 A |
Screw |
-25 °C (-13 °F) |
65 kA |
Toggle |
5.5 in (139.7 mm) |
4 in (101.6 mm) |
IP40 |
5.5 x 4 x 3 in (139.7 x 101.6 x 76.2 mm) |
Trip |
3 in (76.2 mm) |
4 |
70 °C (158 °F) |
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|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
10 A |
Stud |
5 kA |
Toggle |
5.125 in (130.18 mm) |
1.026 in (26.06 mm) |
Moisture Resistant |
Trip Free |
3.55 in (90.17 mm) |
CSA; CUL; UL |
1 |
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|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
15 A |
Stud |
5 kA |
Toggle |
5.125 in (130.18 mm) |
1.026 in (26.06 mm) |
Moisture Resistant |
Trip Free |
3.55 in (90.17 mm) |
CSA; CUL; UL; VDE |
1 |
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|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
480 V |
30 A |
Quick Connect |
10 kA |
Toggle Handle |
5.8 in (147.32 mm) |
3.108 in (78.94 mm) |
Moisture Resistant |
Trip Free |
2.61 in (66.29 mm) |
CSA; CUL; UL; VDE |
3 |
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|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
480 V |
1 A |
Stud |
5 kA |
Toggle Handle |
5.125 in (130.18 mm) |
2.072 in (52.63 mm) |
Moisture Resistant |
Trip Free |
3.55 in (90.17 mm) |
CSA; CUL; UL |
2 |
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|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
480 V |
50 A |
Stud |
5 kA |
Toggle Handle |
5.125 in (130.18 mm) |
2.072 in (52.63 mm) |
Moisture Resistant |
Trip Free |
3.55 in (90.17 mm) |
CSA; CUL; UL |
2 |
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|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
160 V |
90 A |
Quick Connect |
5 kA |
Toggle Handle |
5.8 in (147.32 mm) |
2.072 in (52.63 mm) |
Moisture Resistant |
Trip Free |
2.61 in (66.29 mm) |
CSA; CUL; UL |
2 |
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|
|
Legrand |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
400 V |
25 A |
Snap On |
-25 °C (-13 °F) |
50 kA |
Toggle Handle |
Bulk |
4.106 in (104.3 mm) |
2.102 in (53.4 mm) |
Manual On/Off |
3.11 in (79 mm) |
IEC |
2 |
70 °C (158 °F) |
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|
|
Legrand |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
400 V |
25 A |
Snap On |
-25 °C (-13 °F) |
50 kA |
Toggle Handle |
Bulk |
4.106 in (104.3 mm) |
3.154 in (80.1 mm) |
Manual On/Off |
3.11 in (79 mm) |
IEC |
3 |
70 °C (158 °F) |
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|
|
Legrand |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
400 V |
50 A |
Snap On |
-25 °C (-13 °F) |
50 kA |
Toggle Handle |
Bulk |
4.106 in (104.3 mm) |
3.154 in (80.1 mm) |
Manual On/Off |
3.11 in (79 mm) |
IEC |
3 |
70 °C (158 °F) |
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|
|
Legrand |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
400 V |
32 A |
Snap On |
-25 °C (-13 °F) |
50 kA |
Toggle Handle |
Bulk |
4.106 in (104.3 mm) |
4.205 in (106.8 mm) |
Manual On/Off |
3.11 in (79 mm) |
IEC |
4 |
70 °C (158 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Quick Connect |
-10 °C (14 °F) |
300 A |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Fire Resistant |
Series Trip |
1.693 in (43 mm) |
CE; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Screw |
-10 °C (14 °F) |
300 A |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Fire Resistant |
Series Trip |
1.693 in (43 mm) |
CE; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Screw |
-10 °C (14 °F) |
300 A |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Fire Resistant |
Series Trip |
1.693 in (43 mm) |
CE; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Quick Connect |
-10 °C (14 °F) |
300 A |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Fire Resistant |
Series Trip |
1.693 in (43 mm) |
CE; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Quick Connect |
-10 °C (14 °F) |
300 A |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Fire Resistant |
Series Trip |
1.693 in (43 mm) |
CE; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Quick Connect |
-10 °C (14 °F) |
300 A |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Fire Resistant |
Series Trip |
1.693 in (43 mm) |
CE; TUV; UL |
1 |
60 °C (140 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
80 V |
5 A |
Screw |
-40 °C (-40 °F) |
7.5 kA |
Handle |
2 in (50.8 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.73 in (43.94 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
10 A |
Screw |
-40 °C (-40 °F) |
1.5 kA |
Toggle Handle |
2 in (50.8 mm) |
2.265 in (57.53 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.73 in (43.94 mm) |
CSA; UL; VDE |
3 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
25 A |
Screw |
-40 °C (-40 °F) |
3 kA |
Handle |
2 in (50.8 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.73 in (43.94 mm) |
CSA; UL; VDE |
2 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
25 A |
Screw |
-40 °C (-40 °F) |
3 kA |
Handle |
2 in (50.8 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.73 in (43.94 mm) |
CSA; UL; VDE |
2 |
85 °C (185 °F) |
|||||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
20 A |
Quick Connect |
-40 °C (-40 °F) |
1.5 kA |
Toggle Handle |
2 in (50.8 mm) |
2.265 in (57.53 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.73 in (43.94 mm) |
CSA; UL; VDE |
3 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
18 A |
Screw |
-40 °C (-40 °F) |
3 kA |
Handle |
2.265 in (57.53 mm) |
2 in (50.8 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.73 in (43.94 mm) |
CSA; UL; VDE |
3 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
10 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Rocker |
2.5 in (63.5 mm) |
2.265 in (57.53 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.85 in (47 mm) |
CSA; TUV; UL |
3 |
85 °C (185 °F) |
|||||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
10 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Rocker |
2.5 in (63.5 mm) |
2.265 in (57.53 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.85 in (47 mm) |
CSA; TUV; UL |
3 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
50 A |
Stud |
-40 °C (-40 °F) |
5 kA |
Rocker |
2.5 in (63.5 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
2.16 in (54.86 mm) |
CSA; UL; VDE |
2 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
25 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Rocker |
2.5 in (63.5 mm) |
2.265 in (57.53 mm) |
Corrosion/Moisture Resistant |
Series Trip |
2.16 in (54.86 mm) |
CSA; UL |
3 |
85 °C (185 °F) |
|||||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
25 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Rocker |
2.5 in (63.5 mm) |
2.265 in (57.53 mm) |
Corrosion/Moisture Resistant |
Series Trip |
2.16 in (54.86 mm) |
CSA; UL; VDE |
3 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
80 V |
10 A |
Stud |
-40 °C (-40 °F) |
10 kA |
Handle |
2.5 in (63.5 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.85 in (47 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
125 V |
70 A |
Stud |
-40 °C (-40 °F) |
5 kA |
Handle |
5.78 in (146.81 mm) |
1.026 in (26.06 mm) |
Corrosion/Moisture Resistant |
Series Trip |
2.61 in (66.3 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
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|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
50 A |
Stud |
-35 °C (-31 °F) |
5 kA |
Rocker |
3.8 in (96.52 mm) |
3.015 in (76.58 mm) |
Moisture Resistant |
Series Trip |
2.975 in (75.57 mm) |
UL |
2 |
66 °C (150.8 °F) |
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|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
16 A |
Stud |
-35 °C (-31 °F) |
3 kA |
Handle |
3.8 in (96.52 mm) |
2.265 in (57.53 mm) |
Series Trip |
2.975 in (75.57 mm) |
CSA; UL |
2 |
66 °C (150.8 °F) |
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|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
25 A |
Stud |
-35 °C (-31 °F) |
5 kA |
Toggle Handle |
3.8 in (96.52 mm) |
2.265 in (57.53 mm) |
Moisture Resistant |
Series Trip |
2.975 in (75.57 mm) |
UL |
2 |
66 °C (150.8 °F) |
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|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
30 A |
Stud |
-35 °C (-31 °F) |
5 kA |
Toggle Handle |
3.8 in (96.52 mm) |
2.265 in (57.53 mm) |
Moisture Resistant |
Series Trip |
2.975 in (75.57 mm) |
UL |
2 |
66 °C (150.8 °F) |
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|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
30 A |
Stud |
-35 °C (-31 °F) |
3 kA |
Handle |
3.8 in (96.52 mm) |
2.265 in (57.53 mm) |
Series Trip |
2.975 in (75.57 mm) |
CSA; UL |
2 |
66 °C (150.8 °F) |
||||||||||||
|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
50 A |
Stud |
-35 °C (-31 °F) |
5 kA |
Toggle Handle |
3.8 in (96.52 mm) |
2.265 in (57.53 mm) |
Moisture Resistant |
Series Trip |
2.975 in (75.57 mm) |
UL |
2 |
66 °C (150.8 °F) |
|||||||||||
|
Carling Technologies |
Equipment Leakage Circuit Breaker |
Panel Mount |
240 V |
50 A |
Stud |
-35 °C (-31 °F) |
3 kA |
Handle |
3.8 in (96.52 mm) |
2.265 in (57.53 mm) |
Series Trip |
2.975 in (75.57 mm) |
CSA; UL |
2 |
66 °C (150.8 °F) |
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|
|
Weidmueller & Kg |
Thermal Circuit Breaker |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
15 A |
Quick Connect |
1 kA |
6 s |
Push To Reset |
1.375 in (34.93 mm) |
0.66 in (16.76 mm) |
Series Trip |
1.494 in (37.96 mm) |
1 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
10 A |
Quick Connect |
1 kA |
6 s |
Push To Reset |
1.375 in (34.93 mm) |
0.66 in (16.76 mm) |
Series Trip |
1.375 in (34.93 mm) |
1 |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
65 V |
25 A |
Quick Connect |
2.2 s |
Toggle |
Series Trip |
1 |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
10 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
30 ms |
Toggle |
2 in (50.8 mm) |
1.5 in (38.1 mm) |
Series Trip |
1.64 in (41.66 mm) |
2 |
85 °C (185 °F) |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
15 A |
Stud |
-40 °C (-40 °F) |
5 kA |
150 ms |
Toggle |
2.5 in (63.5 mm) |
0.75 in (19.05 mm) |
Series Trip |
1.845 in (46.86 mm) |
1 |
85 °C (185 °F) |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
20 A |
Stud |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2.5 in (63.5 mm) |
1.5 in (38.1 mm) |
Series Trip |
1.845 in (46.86 mm) |
2 |
85 °C (185 °F) |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
25 A |
Stud |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2.5 in (63.5 mm) |
1.5 in (38.1 mm) |
2.5 x 1.5 x 2.001 in (63.5 x 38.1 x 50.82 mm) |
Series Trip |
2.001 in (50.82 mm) |
2 |
85 °C (185 °F) |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
3 A |
Stud |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2.5 in (63.5 mm) |
1.5 in (38.1 mm) |
Series Trip |
1.845 in (46.86 mm) |
2 |
85 °C (185 °F) |
|||||||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
15 A |
Stud |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2.5 in (63.5 mm) |
2.25 in (57.15 mm) |
Series Trip |
1.845 in (46.86 mm) |
3 |
85 °C (185 °F) |
A circuit breaker is an automatic electrical switch that is designed to protect an electrical circuit from damage caused by overcurrent or short circuits. Circuit breakers are commonly used in residential, commercial, and industrial electrical systems, and they are an important safety device that helps prevent electrical fires, equipment damage, and personal injury.
Circuit breakers work by monitoring the amount of current flowing through an electrical circuit. If the current exceeds a preset level, the circuit breaker will trip, or open the circuit, to prevent damage to the electrical system. When the circuit breaker trips, it interrupts the flow of current, which stops the electrical current from flowing and prevents further damage.
Circuit breakers are available in a variety of types and sizes, and they can be classified based on their voltage rating, current rating, and interrupting capacity. Some common types of circuit breakers include thermal circuit breakers, magnetic circuit breakers, and hybrid circuit breakers.
In addition to protecting electrical systems from overcurrent and short circuits, circuit breakers also help improve the reliability and efficiency of electrical systems. They can also be used to switch electrical circuits on and off, which can be helpful in certain applications.