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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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) |
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) |
0.75 in (19.05 mm) |
Series Trip |
1.845 in (46.86 mm) |
1 |
85 °C (185 °F) |
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Texas Instruments |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
7.5 A |
Screw |
2.5 kA |
2TC2 |
Push-Pull |
0.781 in (19.84 mm) |
0.593 in (15.06 mm) |
Corrosion Resistant |
0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm) |
1.03 in (26.16 mm) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
5 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
2.22 in (56.4 mm) |
0.984 in (25 mm) |
Corrosion Resistant; IP00; IP40 |
Trip Free |
1.299 in (33 mm) |
CCC; CSA; KC; UL; VDE |
2 |
60 °C (140 °F) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
10 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
2.22 in (56.4 mm) |
0.984 in (25 mm) |
Corrosion Resistant; IP00; IP40 |
Trip Free |
1.299 in (33 mm) |
CCC; CSA; KC; UL; VDE |
2 |
60 °C (140 °F) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
16 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
Corrosion/Moisture Resistant; IP00; IP40 |
Manual On/Off |
CCC; CE; CSA; CQC; KTL; UL; VDE |
2 |
60 °C (140 °F) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
3 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
Corrosion/Moisture Resistant; IP00; IP40 |
Manual On/Off |
CCC; CE; CSA; CQC; KTL; UL; VDE |
2 |
60 °C (140 °F) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
6 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
Corrosion/Moisture Resistant; IP00; IP40 |
Manual On/Off |
CCC; CE; CSA; CQC; KTL; UL; VDE |
2 |
60 °C (140 °F) |
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TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
7 A |
Quick Connect |
1 kA |
2.2 s |
Push To Reset |
0.625 in (15.88 mm) |
0.54 in (13.72 mm) |
0.625 x 0.54 x 1.535 in (15.88 x 13.72 x 38.99 mm) |
Series Trip |
1.535 in (38.99 mm) |
CSA; UL; VDE |
1 |
|||||||||||
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
20 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 |
||||||||||||
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
10 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2 in (50.8 mm) |
0.75 in (19.05 mm) |
Fungus Resistant; Moisture Resistant |
2 x 0.75 x 1.64 in (50.8 x 19.05 x 41.66 mm) |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
Standard |
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|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
50 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) |
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Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
30 V |
40 A |
Screw |
-32 °C (-25.6 °F) |
Lever |
2.89 in (73.41 mm) |
1.9 in (48.26 mm) |
Trip |
1.44 in (36.58 mm) |
SAE; UL |
1 |
82 °C (179.6 °F) |
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Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
30 V |
40 A |
Screw |
-32 °C (-25.6 °F) |
Lever |
2.89 in (73.41 mm) |
1.9 in (48.26 mm) |
Trip |
1.44 in (36.58 mm) |
SAE; UL |
1 |
82 °C (179.6 °F) |
|||||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
10 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
2.22 in (56.4 mm) |
0.984 in (25 mm) |
Corrosion Resistant; IP00; IP40 |
Trip Free |
1.299 in (33 mm) |
CCC; CSA; KC; UL; VDE |
2 |
60 °C (140 °F) |
||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
3 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
2.22 in (56.4 mm) |
0.984 in (25 mm) |
Corrosion Resistant; IP00; IP40 |
Trip Free |
1.299 in (33 mm) |
CCC; CSA; KC; UL; VDE |
2 |
60 °C (140 °F) |
||||||||
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
28 V |
60 A |
Screw |
-55 °C (-67 °F) |
6 kA |
Push-Pull |
1.26 in (32 mm) |
0.748 in (19 mm) |
Corrosion/Moisture Resistant; IP00; IP40 |
Tease-Free And Trip-Free |
1.929 in (49 mm) |
CSA; UL |
1 |
75 °C (167 °F) |
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|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
277 V |
28 V |
30 A |
Screw |
-5 °C (23 °F) |
1 kA |
Reset Type |
Bulk |
1.22 in (31 mm) |
0.453 in (11.5 mm) |
Trip |
1.772 in (45 mm) |
CCC; CSA; UL; VDE |
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) |
||||||||
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
15 A |
Quick Connect |
0 °C (32 °F) |
1 kA |
4 s |
Push To Reset |
1.15 in (29.2 mm) |
0.575 in (14.6 mm) |
Series Trip |
0.89 in (22.6 mm) |
1 |
60 °C (140 °F) |
|||||||||||
|
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) |
|||||||||||
|
Phoenix Contact |
Thermal Circuit Breaker |
Panel Mount |
250 V |
65 V |
4 A |
Quick Connect |
-20 °C (-4 °F) |
24 A |
Push To Reset |
Bulk |
0.961 in (24.4 mm) |
0.323 in (8.2 mm) |
IP40 |
1.752 x 0.323 x 0.961 in (44.5 x 8.2 x 24.4 mm) |
Trip |
1.752 in (44.5 mm) |
CCC; CSA; CUL; EAC; UL; VDE |
1 |
60 °C (140 °F) |
|||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
3 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2 in (50.8 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
|||||||||
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
10 A |
Quick Connect |
3 s |
Rocker |
1.89 in (48.01 mm) |
0.98 in (24.89 mm) |
Series Trip |
1.724 in (43.79 mm) |
2 |
|||||||||||||
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
6 A |
Quick Connect |
6 s |
Push To Reset |
Series Trip |
1 |
||||||||||||||||
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
1.5 A |
Quick Connect |
-30 °C (-22 °F) |
15 A |
Rocker |
2.126 in (54 mm) |
0.827 in (21 mm) |
Corrosion Resistant |
2.126 x 0.827 x 1.299 in (54 x 21 x 33 mm) |
Manual On/Off |
1.299 in (33 mm) |
CCC; CSA; UL; VDE |
2 |
60 °C (140 °F) |
|||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
7 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2 in (50.8 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
1 |
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) |
|||||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
2 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Toggle |
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) |
|||||||||
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
12 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 |
||||||||||||
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
415 V |
5 A |
Quick Connect |
-30 °C (-22 °F) |
2 kA |
Rocker |
Bulk |
1.594 in (40.5 mm) |
1.417 in (36 mm) |
Manual On/Off |
1.736 in (44.1 mm) |
CCC; CUL; UL; VDE |
3 |
60 °C (140 °F) |
||||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
4 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2 in (50.8 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
|||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
5 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2 in (50.8 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
1 |
85 °C (185 °F) |
|||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
80 V |
25 A |
Quick Connect |
-40 °C (-40 °F) |
7.5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2 in (50.8 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
2 |
85 °C (185 °F) |
|||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
1 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2 in (50.8 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
2 |
85 °C (185 °F) |
|||||||||
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
7.5 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Handle |
2.265 in (57.53 mm) |
2 in (50.8 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
3 |
85 °C (185 °F) |
|||||||||
|
Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
20 A |
Quick Connect |
-40 °C (-40 °F) |
2 kA |
Toggle Handle |
2 in (50.8 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Trip Free |
1.687 in (42.85 mm) |
VDE |
2 |
85 °C (185 °F) |
||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
16 A |
Quick Connect |
-20 °C (-4 °F) |
2 kA |
Push To Reset |
0.748 in (19 mm) |
0.433 in (11 mm) |
Corrosion Resistant; IP00; IP40 |
Trip Free |
2.374 in (60.3 mm) |
CSA; UL; VDE |
2 |
60 °C (140 °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) |
|||||||||||
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) |
|||||||||||
|
Schneider Electric Sa |
Thermal Magnetic Circuit Breaker |
Panel Mount |
690 V |
65 A |
Screw |
-20 °C (-4 °F) |
6 kA |
Reference standard: UL |
Rotary Handle |
Bulk |
5.197 in (132 mm) |
2.165 in (55 mm) |
IK09; IP20 |
Trip |
5.354 in (136 mm) |
ATEX; ABS; BV; CCC; CSA; DNV-GL; EAC; EN; IEC; LROS; UKCA |
3 |
60 °C (140 °F) |
||||||||
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
15 A |
Screw |
-55 °C (-67 °F) |
3.5 kA |
Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 6000 A |
Push Button |
0.781 in (19.84 mm) |
0.593 in (15.06 mm) |
Corrosion Resistant; Moisture Resistant |
0.781 x 0.593 x 1.03 in (19.84 x 15.06 x 26.16 mm) |
Trip |
1.03 in (26.16 mm) |
1 |
121 °C (249.8 °F) |
|||||||||
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 |
|||||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
20 A |
Quick Connect |
-30 °C (-22 °F) |
20 A |
Rocker |
2.126 in (54 mm) |
0.827 in (21 mm) |
Corrosion Resistant |
2.126 x 0.827 x 1.299 in (54 x 21 x 33 mm) |
Manual On/Off |
1.299 in (33 mm) |
CCC; CSA; UL; VDE |
2 |
60 °C (140 °F) |
||||||||
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
600 V |
500 V |
400 A |
Screw |
-25 °C (-13 °F) |
65 kA |
Toggle |
9.8 in (248.92 mm) |
5.4 in (137.16 mm) |
IP40 |
9.8 x 5.4 x 4.3 in (248.92 x 137.16 x 109.22 mm) |
Trip |
4.3 in (109.22 mm) |
3 |
70 °C (158 °F) |
|||||||||
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
600 V |
400 A |
Screw |
-25 °C (-13 °F) |
150 kA |
Toggle |
9.8 in (248.92 mm) |
5.4 in (137.16 mm) |
IP40 |
9.8 x 5.4 x 4.3 in (248.92 x 137.16 x 109.22 mm) |
Trip |
4.3 in (109.22 mm) |
3 |
70 °C (158 °F) |
||||||||||
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
277 V |
32 V |
3 A |
Quick Connect |
-30 °C (-22 °F) |
2 kA |
Rocker |
Bulk |
1.417 in (36 mm) |
0.689 in (17.5 mm) |
Trip |
1.319 in (33.5 mm) |
CCC; CUL; UL; VDE |
1 |
60 °C (140 °F) |
|||||||||
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
240 V |
60 V |
5 A |
Quick Connect |
-30 °C (-22 °F) |
2 kA |
Rocker |
Bulk |
1.417 in (36 mm) |
1.142 in (29 mm) |
IP40 |
Trip Free |
1.736 in (44.1 mm) |
CCC; CSA; GB; IEC; UL; VDE |
2 |
60 °C (140 °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.