Thermal Circuit Breaker Circuit Breaker 503
| 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 |
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) |
||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
15 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Modified Reset |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP50 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
||||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
48 V |
6 A |
Snap On |
-25 °C (-13 °F) |
4.5 kA |
Handle |
Bulk |
3.15 in (80 mm) |
1.378 in (35 mm) |
IP20 |
Trip |
2.579 in (65.5 mm) |
EN; IEC |
2 |
75 °C (167 °F) |
|||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
120 V |
3 A |
Snap On |
-25 °C (-13 °F) |
5 kA |
Toggle Handle |
Bulk |
3.543 in (90 mm) |
1.417 in (36 mm) |
IP20 |
Trip |
2.992 in (76 mm) |
CSA; EN; UL |
2 |
55 °C (131 °F) |
||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
25 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Modified Reset |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP50 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
||||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
5 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Manual Reset |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP40 |
Trip |
1.189 in (30.2 mm) |
1 |
85 °C (185 °F) |
||||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
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) |
|||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
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) |
|||||||||
|
|
Phoenix Contact |
Thermal Circuit Breaker |
07000 |
||||||||||||||||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
20 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Modified Reset |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP50 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
||||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
30 V |
135 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) |
|||||||||||||
|
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) |
|||||||||
|
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 |
||||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
7.5 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) |
|||||||||
|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
25 A |
Screw |
1 kA |
6 s |
Toggle |
1.384 in (35.15 mm) |
0.69 in (17.53 mm) |
Corrosion/Environment/Moisture Resistant |
Series Trip |
1.6 in (40.64 mm) |
CSA; UL |
1 |
||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Inline/Holder |
32 V |
20 A |
Tab/Blade |
-40 °C (-40 °F) |
150 A |
Push To Reset |
0.787 in (20 mm) |
0.236 in (6 mm) |
Corrosion Resistant; IP00; IP30; IP54 |
Trip Free |
0.945 in (24 mm) |
UL |
1 |
85 °C (185 °F) |
|||||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
240 V |
48 V |
16 A |
Quick Connect |
-5 °C (23 °F) |
2 kA |
Reset Type |
Bulk |
0.984 in (25 mm) |
0.551 in (14 mm) |
IP40 |
Trip Free |
1.654 in (42 mm) |
CCC; CE; CSA; IEC; UL; VDE |
1 |
60 °C (140 °F) |
||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
10 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) |
|||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
30 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Modified Reset |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP50 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
||||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
6 A |
Snap On |
-25 °C (-13 °F) |
14 kA |
5SJ4106-7HG41 |
ENVIRONMENTAL CHARACTERISTICS: IP20; IP40; SEALED |
4.283 in (108.8 mm) |
0.693 in (17.6 mm) |
Environment/Moisture Resistant |
4.283 x 0.693 x 2.748 in (108.8 x 17.6 x 69.8 mm) |
Trip |
2.748 in (69.8 mm) |
CCC; CE; EAC; UL; VDE |
1 |
55 °C (131 °F) |
||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
120 V |
6 A |
Snap On |
-25 °C (-13 °F) |
5 kA |
Toggle Handle |
Bulk |
3.543 in (90 mm) |
1.417 in (36 mm) |
IP20 |
Trip |
2.992 in (76 mm) |
CSA; EN; UL |
2 |
55 °C (131 °F) |
||||||||
|
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) |
|||||||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount-Threaded |
240 V |
48 V |
1 A |
Quick Connect |
-5 °C (23 °F) |
2 kA |
Reset Button |
Bulk |
0.748 in (19 mm) |
0.433 in (11 mm) |
IP40 |
Trip Free |
1.976 in (50.2 mm) |
CCC; CSA; IEC; UL; VDE; GB |
1 |
60 °C (140 °F) |
||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
240 V |
48 V |
4 A |
Quick Connect |
-5 °C (23 °F) |
Tin Silver |
2 kA |
Reset Type |
Bulk |
0.606 in (15.4 mm) |
0.535 in (13.6 mm) |
IP40 |
e2 |
Trip Free |
1.339 in (34 mm) |
CCC; CSA; GB; IEC; UL; VDE |
1 |
50 °C (122 °F) |
||||||
|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
10 A |
Quick Connect |
1 kA |
3 s |
Rocker |
1.89 in (48.01 mm) |
0.98 in (24.89 mm) |
Series Trip |
1.724 in (43.79 mm) |
2 |
||||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
10 A |
Snap On |
-25 °C (-13 °F) |
14 kA |
5SJ4110-7HG40 |
ENVIRONMENTAL CHARACTERISTICS: IP20; IP40; SEALED |
3.543 in (90 mm) |
0.709 in (18 mm) |
Environment/Moisture Resistant |
3.543 x 0.709 x 2.756 in (90 x 18 x 70 mm) |
Trip |
2.756 in (70 mm) |
CCC; CE; EAC; UL; VDE |
1 |
55 °C (131 °F) |
||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
15 A |
Snap On |
-25 °C (-13 °F) |
14 kA |
Environmental Characteristics: Sealed |
4.283 in (108.8 mm) |
1.386 in (35.2 mm) |
Environment Resistant; IP20; IP40 |
4.283 x 1.386 x 3.031 in (108.8 x 35.2 x 77 mm) |
Trip |
3.031 in (77 mm) |
CCC; CE; UL; VDE |
2 |
55 °C (131 °F) |
|||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
240 V |
60 V |
10 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) |
||||||||
|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
500 mA |
Quick Connect |
1 kA |
4.5 s |
Push To Reset |
0.76 in (19.31 mm) |
0.76 in (19.31 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 |
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 |
||||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
690 V |
63 A |
Screw |
-40 °C (-40 °F) |
55 kA |
Toggle |
7.1 in (180.34 mm) |
4.1 in (104.14 mm) |
IP40 |
7.1 x 4.1 x 3.4 in (180.34 x 104.14 x 86.36 mm) |
Trip |
3.4 in (86.36 mm) |
3 |
70 °C (158 °F) |
||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
28 V |
50 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) |
||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
28 V |
70 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) |
||||||||||
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Tab |
2.5 kA |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Series Trip |
1.693 in (43 mm) |
CE; CSA; CUL; TUV; UL |
1 |
|||||||||||||
|
|
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; CSA; TUV; UL |
1 |
60 °C (140 °F) |
||||||||
|
Sensata Technologies |
Thermal Circuit Breaker |
Panel Mount-Threaded |
7.5 A |
Screw |
MS3320 |
Push-Pull |
|||||||||||||||||||||
|
|
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) |
||||||||
|
|
Phoenix Contact |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
2 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) |
|||||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
8 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) |
|||||||||||
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
10 A |
Tab |
2.5 kA |
Push To Reset |
1.378 in (35 mm) |
0.571 in (14.5 mm) |
Series Trip |
1.693 in (43 mm) |
CE; CSA; CUL; TUV; UL |
1 |
|||||||||||||
|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
20 A |
Quick Connect |
1 kA |
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 |
20 A |
Quick Connect |
1 kA |
3 s |
Rocker |
1.89 in (48.01 mm) |
0.98 in (24.89 mm) |
Series Trip |
1.724 in (43.79 mm) |
2 |
|||||||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Through Hole Mount |
240 V |
28 V |
2 A |
Printed Circuit Board |
-20 °C (-4 °F) |
Silver |
2 kA |
Rated breaking capacity at 50 VDC: 200 A |
Reset Slide |
1.102 in (28 mm) |
0.354 in (9 mm) |
Corrosion Resistant |
e4 |
1.102 x 0.354 x 0.425 in (28 x 9 x 10.8 mm) |
0.425 in (10.8 mm) |
CSA; UL; VDE |
1 |
70 °C (158 °F) |
||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
2 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) |
||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
125 V |
5 A |
Screw And Snap On |
10 kA |
Handle |
4.764 in (121 mm) |
0.709 in (18 mm) |
IP20; IP40 |
4.764 x 0.709 x 2.992 in (121 x 18 x 76 mm) |
Trip |
2.992 in (76 mm) |
1 |
|||||||||||
|
|
Abb |
Thermal Circuit Breaker |
DIN Rail Mount |
480 V |
110 V |
40 A |
Snap On |
-25 °C (-13 °F) |
10 kA |
Toggle Handle |
3.386 in (86 mm) |
2.126 in (54 mm) |
IP20; IP40 |
Trip |
2.677 in (68 mm) |
CE; CSA; UL |
3 |
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.