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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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 |
2.205 in (56 mm) |
0.827 in (21 mm) |
Corrosion Resistant |
2.205 x 0.827 x 1.299 in (56 x 21 x 33 mm) |
Manual On/Off |
1.299 in (33 mm) |
CCC; CSA; UL; VDE |
2 |
60 °C (140 °F) |
|||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
6 A |
Quick Connect |
-30 °C (-22 °F) |
6 A |
Rocker |
2.205 in (56 mm) |
0.827 in (21 mm) |
Corrosion Resistant |
2.205 x 0.827 x 1.299 in (56 x 21 x 33 mm) |
Manual On/Off |
1.299 in (33 mm) |
CCC; CSA; UL; VDE |
2 |
60 °C (140 °F) |
|||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
28 V |
2 A |
Quick Connect |
-20 °C (-4 °F) |
20 A |
Rocker |
2.008 in (51 mm) |
0.945 in (24 mm) |
Corrosion Resistant; IP00; IP66 |
Manual On/Off |
1.142 in (29 mm) |
UL; VDE |
1 |
60 °C (140 °F) |
||||||||||
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
600 V |
100 A |
Screw |
-25 °C (-13 °F) |
35 kA |
Toggle |
7.8 in (198.12 mm) |
4.1 in (104.14 mm) |
IP40 |
7.8 x 4.1 x 3.4 in (198.12 x 104.14 x 86.36 mm) |
Trip |
3.4 in (86.36 mm) |
3 |
70 °C (158 °F) |
||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
690 V |
500 V |
63 A |
Box |
-25 °C (-13 °F) |
100 kA |
Toggle |
6.87 in (174.5 mm) |
4.114 in (104.5 mm) |
IP20 |
6.87 x 4.114 x 4.193 in (174.5 x 104.5 x 106.5 mm) |
Trip |
4.193 in (106.5 mm) |
3 |
70 °C (158 °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 |
||||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
28 V |
45 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 |
80 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 |
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 |
Trip Free |
1.929 in (49 mm) |
CSA; UL |
1 |
75 °C (167 °F) |
|||||||||||
|
Legrand |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
40 A |
Snap On |
-25 °C (-13 °F) |
50 kA |
Handle |
Bulk |
6.496 in (165 mm) |
5.512 in (140 mm) |
Trip |
3.937 in (100 mm) |
IEC |
4 |
70 °C (158 °F) |
|||||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
277 V |
28 V |
20 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) |
||||||||
|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
240 V |
60 V |
3 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) |
||||||||
|
|
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) |
||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
72 V |
50 A |
Screw |
-55 °C (-67 °F) |
5 kA |
Push-Pull |
1.22 in (31 mm) |
0.709 in (18 mm) |
Corrosion/Moisture Resistant; IP00; IP40 |
Trip Free |
1.969 in (50 mm) |
CSA; CUL; UL |
1 |
75 °C (167 °F) |
|||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
28 V |
20 A |
Screw |
-55 °C (-67 °F) |
2.5 kA |
Rated breaking capacity at 28 VDC: 6000 A |
Push-Pull |
0.768 in (19.5 mm) |
0.559 in (14.2 mm) |
IP40; IP00 |
Tease-Free And Trip-Free |
1.22 in (31 mm) |
1 |
125 °C (257 °F) |
||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
125 V |
20 A |
Screw And Snap On |
14 kA |
Handle |
3.543 in (90 mm) |
2.126 in (54 mm) |
IP20; IP40 |
3.543 x 2.126 x 2.992 in (90 x 54 x 76 mm) |
Trip |
2.992 in (76 mm) |
3 |
|||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
60 V |
10 A |
Snap On |
-25 °C (-13 °F) |
6 kA |
3.543 in (90 mm) |
0.709 in (18 mm) |
IP20; Sealed |
3.543 x 0.709 x 2.992 in (90 x 18 x 76 mm) |
Trip |
2.992 in (76 mm) |
CE; CEBEC; TSE; VDE |
1 |
45 °C (113 °F) |
|||||||||
|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
15 A |
Quick Connect |
1 kA |
Rocker |
0.76 in (19.31 mm) |
0.76 in (19.31 mm) |
Series Trip |
1.535 in (38.99 mm) |
CE; CUL; UL; VDE |
1 |
||||||||||||
|
|
Schneider Electric Sa |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
|
Schneider Electric Sa |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
Sensata Technologies |
Thermal Circuit Breaker |
MS25361 |
|||||||||||||||||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount-Threaded |
120 V |
28 V |
20 A |
Screw |
500 A |
Standard: MIL-C-5809, rated breaking capacity at 28 VDC: 2000 A |
0.78 in (19.81 mm) |
0.593 in (15.06 mm) |
0.78 x 0.593 x 1.251 in (19.81 x 15.06 x 31.78 mm) |
1.251 in (31.78 mm) |
MS |
1 |
|||||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
120 V |
28 V |
3 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 |
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) |
|||||||||
|
|
Schneider Electric Sa |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
|
Schneider Electric Sa |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
|
Schneider Electric Sa |
Thermal Circuit Breaker |
Panel Mount |
240 V |
48 V |
25 A |
10 kA |
Rated breaking capacity at 48 VDC: 5000 A |
4.05 in (102.87 mm) |
1.5 in (38.1 mm) |
4.05 x 1.5 x 2.95 in (102.87 x 38.1 x 74.93 mm) |
2.95 in (74.93 mm) |
CSA; IEC; UL |
2 |
|||||||||||||
|
|
Schneider Electric Sa |
Thermal Circuit Breaker |
|||||||||||||||||||||||||
|
Abb |
Thermal Circuit Breaker |
DIN Rail Mount |
230 V |
20 A |
Snap On |
-25 °C (-13 °F) |
10 kA |
Manual On/Off |
2.795 in (71 mm) |
0.689 in (17.5 mm) |
IP20 |
2.795 x 0.689 x 3.622 in (71 x 17.5 x 92 mm) |
3.622 in (92 mm) |
CCC; CSA; IEC; UL; VDE |
1 |
55 °C (131 °F) |
|||||||||||
|
TE Connectivity |
Thermal Circuit Breaker |
||||||||||||||||||||||||||
|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
5 A |
Quick Connect |
2 kA |
6 s |
Push To Reset |
1.375 in (34.93 mm) |
0.66 in (16.76 mm) |
1.375 x 0.66 x 1.375 in (34.93 x 16.76 x 34.93 mm) |
Series Trip |
1.375 in (34.93 mm) |
CSA; UL |
1 |
||||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
2 A |
Quick Connect |
-20 °C (-4 °F) |
1 kA |
ENVIRONMENTAL CHARACTERISTICS: IP40; IP00 |
Push Button |
0.748 in (19 mm) |
0.52 in (13.2 mm) |
Corrosion Resistant; Moisture Resistant |
0.748 x 0.52 x 1.87 in (19 x 13.2 x 47.5 mm) |
Tease-Free And Trip-Free |
1.87 in (47.5 mm) |
CBE; CSA; IEC; UL; VDE |
1 |
60 °C (140 °F) |
Medium |
||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
72 V |
6 A |
Quick Connect |
-20 °C (-4 °F) |
2 kA |
Push Button |
1.921 in (48.8 mm) |
0.323 in (8.2 mm) |
IP00; IP40 |
0.961 x 0.323 x 1.921 in (24.4 x 8.2 x 48.8 mm) |
Trip Free |
0.961 in (24.4 mm) |
CQC; CSA; EN; IEC; UL; VDE |
1 |
60 °C (140 °F) |
||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Through Hole Mount |
240 V |
28 V |
4 A |
Printed Circuit Board |
-20 °C (-4 °F) |
Silver |
2 kA |
Rated breaking capacity at 50 VDC: 200 A, Environmental Characteristics: IP40; IP00 |
Reset Button |
0.984 in (25 mm) |
0.504 in (12.8 mm) |
Corrosion Resistant; Moisture Resistant |
e4 |
0.984 x 0.504 x 0.591 in (25 x 12.8 x 15 mm) |
0.591 in (15 mm) |
CSA; UL; VDE |
1 |
70 °C (158 °F) |
||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Inline/Holder |
32 V |
10 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) |
|||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Inline/Holder |
32 V |
6 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) |
|||||||||||
|
Eaton Corporation |
Thermal Circuit Breaker |
Panel Mount |
30 V |
150 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 |
DIN Rail Mount |
400 V |
48 V |
250 mA |
Snap On |
-25 °C (-13 °F) |
4.5 kA |
Handle |
Bulk |
3.15 in (80 mm) |
2.067 in (52.5 mm) |
IP20 |
Trip |
2.579 in (65.5 mm) |
EN; IEC |
3 |
75 °C (167 °F) |
|||||||||
|
Sensata Technologies |
Thermal Circuit Breaker |
Panel Mount-Threaded |
120 V |
28 V |
30 A |
Screw |
1.8 kA |
Rated breaking capacity at 28 VDC: 1625 A |
Push-Pull |
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 Free |
1.03 in (26.16 mm) |
1 |
|||||||||||
|
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
690 V |
200 A |
Screw |
-25 °C (-13 °F) |
110 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 |
28 V |
30 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 |
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 |
30 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 |
35 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 |
40 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) |
||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
28 V |
90 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 |
30 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 |
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) |
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.