277 V Circuit Breaker 205
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Abb |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
60 V |
6 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
Box |
3.465 in (88 mm) |
0.689 in (17.5 mm) |
IP20; IP40 |
Trip |
2.717 in (69 mm) |
CE; CSA; IEC/EN 60898-1; IEC/EN 60947-2; UL |
1 |
55 °C (131 °F) |
|||||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
20 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 |
|||||||
|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
10 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Rocker |
2.156 in (54.76 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) |
|||||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
30 A |
Stud |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2.5 in (63.5 mm) |
1.5 in (38.1 mm) |
Moisture Resistant |
Series Trip |
1.985 in (50.42 mm) |
CSA; UL; VDE |
2 |
85 °C (185 °F) |
Standard |
||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
277 V |
28 V |
30 A |
Quick Connect |
-5 °C (23 °F) |
1 kA |
Reset Type |
Bulk |
1.22 in (31 mm) |
0.453 in (11.5 mm) |
IP40 |
Trip Free |
1.772 in (45 mm) |
CCC; CSA; GB; IEC; UL; VDE |
1 |
60 °C (140 °F) |
||||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
30 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) |
|||||||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
20 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2 in (50.8 mm) |
1.5 in (38.1 mm) |
Fungus Resistant; Moisture Resistant |
2 x 1.5 x 1.64 in (50.8 x 38.1 x 41.66 mm) |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
2 |
85 °C (185 °F) |
Standard |
|||||||
|
|
Abb |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
48 V |
10 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
200 ms |
Bulk |
4.37 in (111 mm) |
0.689 in (17.5 mm) |
IP20; IP40 |
Shunt Trip |
2.717 in (69 mm) |
CCC; CSA; EN; IEC; UL; VDE |
1 |
55 °C (131 °F) |
Instantaneous |
|||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
5 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2 in (50.8 mm) |
1.5 in (38.1 mm) |
Fungus Resistant; Moisture Resistant |
2 x 1.5 x 1.64 in (50.8 x 38.1 x 41.66 mm) |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
2 |
85 °C (185 °F) |
Standard |
|||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
15 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 |
|||||||
|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
80 V |
15 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) |
||||||||
|
|
Abb |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
96 V |
10 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
200 ms |
Bulk |
4.37 in (111 mm) |
1.378 in (35 mm) |
IP20; IP40 |
Shunt Trip |
2.717 in (69 mm) |
CCC; CSA; EN; IEC; UL; VDE |
2 |
55 °C (131 °F) |
Instantaneous |
|||||||
|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
10 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
Standards: MIL-PRF-55629, MIL-STD-202 |
Rocker |
2.156 in (54.76 mm) |
0.745 in (18.92 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 |
80 V |
25 A |
Screw |
-40 °C (-40 °F) |
5 kA |
Toggle |
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 |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
30 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) |
|||||||||||
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
30 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) |
||||||||||||
|
|
Eaton Corporation |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
5 A |
Snap On |
10 kA |
Toggle |
Manual On/Off |
1 |
|||||||||||||||||
|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
80 V |
20 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) |
||||||||
|
|
Eaton Corporation |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
16 A |
Snap On |
10 kA |
Toggle |
Manual On/Off |
2 |
|||||||||||||||||
|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
15 A |
Quick Connect |
5 kA |
2.2 s |
Toggle |
50.8mm X 38.1mm X 51.89mm |
Series Trip |
2 |
|||||||||||||||
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
15 A |
Quick Connect |
2.2 s |
Toggle |
Series Trip |
2 |
||||||||||||||||||
|
Altech |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
80 V |
20 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
Handle |
Bulk |
3.516 in (89.3 mm) |
1.378 in (35 mm) |
IP20 |
Under Voltage Release |
2.693 in (68.4 mm) |
CSA; UL; VDE |
2 |
55 °C (131 °F) |
|||||||||
|
|
Eaton Corporation |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
1 A |
Snap On |
10 kA |
Toggle |
Manual On/Off |
2 |
|||||||||||||||||
|
|
Abb |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
48 V |
1 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
200 ms |
Bulk |
4.37 in (111 mm) |
0.689 in (17.5 mm) |
IP20; IP40 |
Shunt Trip |
2.717 in (69 mm) |
CCC; CSA; EN; IEC; UL; VDE |
1 |
55 °C (131 °F) |
Instantaneous |
|||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
277 V |
28 V |
15 A |
Quick Connect |
-5 °C (23 °F) |
1 kA |
Reset Type |
Bulk |
1.22 in (31 mm) |
0.453 in (11.5 mm) |
IP40 |
Trip Free |
1.772 in (45 mm) |
CCC; CSA; GB; IEC; UL; VDE |
1 |
60 °C (140 °F) |
||||||||
|
|
Eaton Corporation |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
10 A |
Snap On |
10 kA |
Toggle |
Manual On/Off |
3 |
Instantaneous |
||||||||||||||||
|
|
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) |
|||||||||||
|
|
Abb |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
48 V |
6 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
200 ms |
Bulk |
4.37 in (111 mm) |
0.689 in (17.5 mm) |
IP20; IP40 |
Shunt Trip |
2.717 in (69 mm) |
CCC; CSA; EN; IEC; UL; VDE |
1 |
55 °C (131 °F) |
Instantaneous |
|||||||
|
|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
2 A |
Snap On |
-25 °C (-13 °F) |
5 kA |
Handle |
3.543 in (90 mm) |
0.709 in (18 mm) |
3.543 x 0.709 x 2.992 in (90 x 18 x 76 mm) |
Trip |
2.992 in (76 mm) |
CE; CSA; EN; UL |
1 |
45 °C (113 °F) |
||||||||||
|
|
Eaton Corporation |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
10 A |
Snap On |
10 kA |
Toggle |
Manual On/Off |
1 |
|||||||||||||||||
|
|
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) |
|||||||||||
|
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) |
||||||||||||
|
|
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 |
|||||||
|
|
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) |
|||||||||||
|
|
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) |
|||||||||
|
|
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) |
|||||||||||
|
|
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) |
|||||||||
|
Altech |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
6 A |
Snap On |
-25 °C (-13 °F) |
10 kA |
Toggle |
Bulk |
4.146 in (105.3 mm) |
0.689 in (17.5 mm) |
Trip |
2.693 in (68.4 mm) |
CE, CUL, UL |
1 |
55 °C (131 °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 |
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) |
|||||||||
|
|
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 |
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) |
|||||||||
|
|
Schneider Electric Sa |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
4 A |
Snap On |
-30 °C (-22 °F) |
5 kA |
Toggle |
Bulk |
3.189 in (81 mm) |
1.417 in (36 mm) |
IP20; IP40 |
Trip |
2.874 in (73 mm) |
CCC; CSA; IEC; UL |
2 |
70 °C (158 °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) |
|||||||||||
|
|
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) |
|||||||||
|
|
Abb |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
48 V |
2 A |
Screw And Snap On |
-25 °C (-13 °F) |
10 kA |
Interrupting current max at 277 VAC |
2.717 in (69 mm) |
0.689 in (17.5 mm) |
Environment Resistant; IP20; IP40 |
2.717 x 0.689 x 4.37 in (69 x 17.5 x 111 mm) |
Trip |
4.37 in (111 mm) |
CE; CSA; EN; IEC; UL |
1 |
55 °C (131 °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.