| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Littelfuse |
Thermal Circuit Breaker |
Panel Mount |
12 V |
25 A |
Quick Connect |
Automatic Reset |
SAE |
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|
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 |
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|
|
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 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
5 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 |
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|
|
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) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
5 A |
Quick Connect |
-30 °C (-22 °F) |
5 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) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
10 A |
Quick Connect |
-30 °C (-22 °F) |
100 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) |
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|
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) |
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|
|
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) |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Through Hole Mount |
240 V |
28 V |
5 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) |
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|
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
400 V |
2 A |
Screw |
-25 °C (-13 °F) |
10 kA |
5SY |
Sealed Bat |
3.543 in (90 mm) |
0.709 in (18 mm) |
IP20 |
3.543 x 0.709 x 2.756 in (90 x 18 x 70 mm) |
Under Voltage Release |
2.756 in (70 mm) |
CCC; CUL; EN; GOST; IMQ; UL; VDE |
1 |
45 °C (113 °F) |
Standard |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
20 A |
Quick Connect |
1 kA |
2.2 s |
Push To Reset |
0.76 in (19.31 mm) |
0.76 in (19.31 mm) |
Series Trip |
1.535 in (38.99 mm) |
1 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
3 A |
Quick Connect |
2.2 s |
Push To Reset |
0.76 in (19.31 mm) |
0.76 in (19.31 mm) |
Series Trip |
1.535 in (38.99 mm) |
1 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
1 A |
Lug |
1 kA |
10 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 |
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|
|
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 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
5 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 |
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|
|
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 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
50 A |
Screw |
1 kA |
6 s |
Push-Pull |
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 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
5 A |
Screw |
1 kA |
6 s |
Push-Pull |
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 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
10 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 |
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|
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
15 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 |
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|
|
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 |
||||||||||
|
TE Connectivity |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
5 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 |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Through Hole Mount |
240 V |
28 V |
1 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) |
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|
|
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) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
3 A |
Quick Connect |
-10 °C (14 °F) |
1 kA |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.154 in (29.3 mm) |
0.551 in (14 mm) |
Manual On/Off |
1.78 in (45.2 mm) |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
5 A |
Quick Connect |
-10 °C (14 °F) |
1 kA |
Push To Reset |
1.154 in (29.3 mm) |
0.551 in (14 mm) |
Series Trip |
1.78 in (45.2 mm) |
CSA; CE; CUL; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
15 A |
Quick Connect |
-10 °C (14 °F) |
1 kA |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.154 in (29.3 mm) |
0.551 in (14 mm) |
Manual On/Off |
1.78 in (45.2 mm) |
1 |
60 °C (140 °F) |
||||||||||
|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
15 A |
Quick Connect |
-10 °C (14 °F) |
1 kA |
Push To Reset |
1.154 in (29.3 mm) |
0.551 in (14 mm) |
Series Trip |
1.78 in (45.2 mm) |
CSA; CE; CUL; TUV; UL |
1 |
60 °C (140 °F) |
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|
|
Carling Technologies |
Thermal Circuit Breaker |
Panel Mount |
250 V |
32 V |
20 A |
Quick Connect |
-10 °C (14 °F) |
1 kA |
Rated breaking capacity at 32 VDC: 2500 A |
Push To Reset |
1.154 in (29.3 mm) |
0.551 in (14 mm) |
Manual On/Off |
1.78 in (45.2 mm) |
1 |
60 °C (140 °F) |
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|
|
Schurter Ag |
Thermal Circuit Breaker |
Panel Mount |
125 V |
32 V |
5 A |
Quick Connect |
1 kA |
Push To Reset |
1.161 in (29.5 mm) |
0.563 in (14.3 mm) |
Trip Free |
0.886 in (22.5 mm) |
UL |
1 |
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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; CSA; TUV; UL |
1 |
60 °C (140 °F) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
10 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) |
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|
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) |
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|
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) |
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|
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) |
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|
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) |
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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
5 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) |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
10 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Reset Button |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP40 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
|||||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
15 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Reset Button |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP40 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
|||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
20 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Reset Button |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP40 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
||||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
30 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Reset Button |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP40 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
12 V |
5 A |
Quick Connect |
-40 °C (-40 °F) |
150 A |
Reset Button |
0.524 in (13.3 mm) |
0.276 in (7 mm) |
Corrosion Resistant; IP00; IP40 |
Trip |
0.984 in (25 mm) |
1 |
85 °C (185 °F) |
|||||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
28 V |
15 A |
Quick Connect |
-20 °C (-4 °F) |
1 kA |
Push To Reset |
Bulk |
1.26 in (32 mm) |
0.535 in (13.6 mm) |
Corrosion/Moisture Resistant; IP00; IP40 |
Trip Free |
1.063 in (27 mm) |
CSA; CUL; UL |
1 |
60 °C (140 °F) |
|||||||||
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
10 A |
Tab/Blade |
-30 °C (-22 °F) |
5 kA |
Rocker |
Bulk |
2.126 in (54 mm) |
0.984 in (25 mm) |
Corrosion/Moisture Resistant; IP00; IP40 |
Trip Free |
1.299 in (33 mm) |
CSA; UL |
2 |
60 °C (140 °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) |
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|
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 |
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) |
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.