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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
2.5 A |
Screw |
2.8 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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Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
2.5 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) |
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Sensata Technologies |
Thermal Circuit Breaker |
Panel Mount-Threaded |
120 V |
2.5 A |
Screw |
2.8 kA |
Push-Pull |
0.719 in (18.26 mm) |
0.593 in (15.06 mm) |
Corrosion Resistant; Moisture Resistant |
0.719 x 0.593 x 1.03 in (18.26 x 15.06 x 26.16 mm) |
Trip Free |
1.03 in (26.16 mm) |
MIL-C-5809 |
1 |
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|
Eaton Corporation |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
480 V |
2.5 A |
Screw And Snap On |
-40 °C (-40 °F) |
10 kA |
Handle |
Bulk |
3.15 in (80 mm) |
2.126 in (54 mm) |
IP20 |
Trip |
2.858 in (72.6 mm) |
CE; CSA; EN; IEC; UL |
3 |
75 °C (167 °F) |
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|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
2.5 A |
Snap On |
-20 °C (-4 °F) |
10 kA |
Interrupting current max at 450 VDC: 10000 A |
Handle |
3.819 in (97 mm) |
1.772 in (45 mm) |
IP20 |
3.819 x 1.772 x 3.815 in (97 x 45 x 96.9 mm) |
Trip |
3.815 in (96.9 mm) |
ATEX; CCC; CE; CSA; EAC; IECEX; KC; UL; VDE |
3 |
60 °C (140 °F) |
Instantaneous |
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|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
2.5 A |
Snap On |
-20 °C (-4 °F) |
10 kA |
Handle |
4.173 in (106 mm) |
1.772 in (45 mm) |
IP20 |
4.173 x 1.772 x 3.815 in (106 x 45 x 96.9 mm) |
Trip |
3.815 in (96.9 mm) |
ATEX; CCC; CE; CSA; EAC; IECEX; UL; VDE |
3 |
60 °C (140 °F) |
Instantaneous |
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Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
50 V |
2.5 A |
Solder Hook |
-40 °C (-40 °F) |
1 kA |
Toggle |
1.562 in (39.67 mm) |
1.281 in (32.53 mm) |
Corrosion Resistant; Sealed |
Series Trip |
1.78 in (45.21 mm) |
2 |
100 °C (212 °F) |
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Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
50 V |
2.5 A |
Solder Hook |
-40 °C (-40 °F) |
1 kA |
Toggle |
1.562 in (39.67 mm) |
0.656 in (16.66 mm) |
Sealed |
Series Trip |
1.605 in (40.77 mm) |
UL |
1 |
100 °C (212 °F) |
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|
Schneider Electric Sa |
Thermal Magnetic Circuit Breaker |
DIN Rail And Panel Mount |
690 V |
2.5 A |
Screw And Snap On |
-20 °C (-4 °F) |
3 kA |
Push Button |
Bulk |
3.504 in (89 mm) |
1.772 in (45 mm) |
IK04; IP20 |
3.118 x 1.772 x 3.504 in (79.2 x 45 x 89 mm) |
Trip |
3.091 in (78.5 mm) |
EN; IEC |
3 |
60 °C (140 °F) |
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E-t-a Elektrotechnische Apparate |
Thermal Magnetic Circuit Breaker |
Panel Mount |
250 V |
65 V |
2.5 A |
Quick Connect |
-30 °C (-22 °F) |
1 kA |
Push To Reset |
1.969 in (50 mm) |
0.453 in (11.5 mm) |
Corrosion/Moisture Resistant; IP00; IP40 |
Trip Free |
2.008 in (51 mm) |
CSA; UL |
1 |
60 °C (140 °F) |
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|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
2.5 A |
Snap On |
-20 °C (-4 °F) |
100 kA |
Interrupting current max at 450 VDC: 10000 A |
Rocker |
3.543 in (90 mm) |
1.772 in (45 mm) |
IP00; IP20 |
3.543 x 1.772 x 2.953 in (90 x 45 x 75 mm) |
Trip |
2.953 in (75 mm) |
ATEX; CCC; CE; CSA; EAC; IECEX; UL; VDE |
3 |
60 °C (140 °F) |
Instantaneous |
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Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
2.5 A |
Screw |
-40 °C (-40 °F) |
1 kA |
Toggle |
2 in (50.8 mm) |
1.515 in (38.48 mm) |
Manual On/Off |
2.256 in (57.3 mm) |
CSA, UL |
2 |
85 °C (185 °F) |
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Eaton Corporation |
Thermal Circuit Breaker |
DIN Rail Mount |
690 V |
2.5 A |
Snap On |
-25 °C (-13 °F) |
150 kA |
Rated breaking capacity at 400 VAC |
Turn Button |
3.638 in (92.4 mm) |
1.772 in (45 mm) |
IP00; IP20 |
3.638 x 1.772 x 2.65 in (92.4 x 45 x 67.3 mm) |
Trip |
2.65 in (67.3 mm) |
CE; CSA; EN; IEC; UL |
3 |
55 °C (131 °F) |
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Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
50 V |
2.5 A |
Solder Hook |
-40 °C (-40 °F) |
1 kA |
Toggle Handle |
1.562 in (39.67 mm) |
1.281 in (32.53 mm) |
Sealed |
Series Trip |
1.78 in (45.21 mm) |
UL |
2 |
100 °C (212 °F) |
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Sensata Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
2.5 A |
Solder Hook |
-40 °C (-40 °F) |
1 kA |
Toggle |
1.562 in (39.67 mm) |
1.281 in (32.53 mm) |
Corrosion Resistant; Sealed |
Series Trip |
1.78 in (45.21 mm) |
2 |
100 °C (212 °F) |
||||||||||||
|
Schneider Electric Sa |
Thermal Magnetic Circuit Breaker |
DIN Rail And Panel Mount |
690 V |
2.5 A |
Screw And Snap On |
-20 °C (-4 °F) |
8 kA |
Rotary Handle |
Bulk |
3.504 in (89 mm) |
1.772 in (45 mm) |
IK04; IP20 |
Trip |
3.819 in (97 mm) |
ATEX; BV; CCC; CSA; DNV-GL; EAC; EN; IEC; LROS; RINA; UL |
3 |
60 °C (140 °F) |
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Omron |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
440 V |
2.5 A |
Screw |
-20 °C (-4 °F) |
100 kA |
Rocker |
5.118 in (130 mm) |
1.772 in (45 mm) |
IP20 |
Trip |
2.941 in (74.7 mm) |
CCC; CE; CUL; IEC; PSE; TUV; UL |
3 |
60 °C (140 °F) |
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Omron |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
440 V |
2.5 A |
Screw |
-20 °C (-4 °F) |
100 kA |
Rotary Knob |
5.118 in (130 mm) |
1.772 in (45 mm) |
IP20 |
Manual On/Off |
3.728 in (94.7 mm) |
CCC; CE; CUL; IEC; PSE; TUV; UL |
3 |
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.