20 A Circuit Breaker 44
| 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 |
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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|
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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|
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 |
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|
|
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 |
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|
|
TE Connectivity |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
20 A |
Quick Connect |
-40 °C (-40 °F) |
5 kA |
2.2 s |
Toggle |
2.25 in (57.15 mm) |
2 in (50.8 mm) |
Fungus Resistant; Moisture Resistant |
2.25 x 2 x 1.64 in (57.15 x 50.8 x 41.66 mm) |
Series Trip |
1.64 in (41.66 mm) |
CSA; UL |
3 |
85 °C (185 °F) |
Standard |
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|
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) |
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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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|
|
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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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
480 V |
150 V |
20 A |
Stud |
-40 °C (-40 °F) |
10 kA |
Handle |
1.85 in (47 mm) |
0.75 in (19.05 mm) |
Series Trip |
2.5 in (63.5 mm) |
UL |
1 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
480 V |
150 V |
20 A |
Stud |
-40 °C (-40 °F) |
10 kA |
Handle |
1.85 in (47 mm) |
2.265 in (57.53 mm) |
Series Trip |
2.5 in (63.5 mm) |
UL |
3 |
85 °C (185 °F) |
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|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
277 V |
20 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 |
20 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 |
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) |
|||||||||
|
|
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) |
||||||||
|
|
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) |
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|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
80 V |
20 A |
Screw |
-40 °C (-40 °F) |
3 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; VDE |
1 |
85 °C (185 °F) |
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|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
80 V |
20 A |
Screw |
-40 °C (-40 °F) |
3 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; VDE |
2 |
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 |
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) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
120 V |
20 A |
Stud |
-40 °C (-40 °F) |
10 kA |
Handle |
2.5 in (63.5 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.85 in (47 mm) |
CSA; UL |
2 |
85 °C (185 °F) |
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|
|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
410 V |
20 A |
Screw |
-40 °C (-40 °F) |
10 kA |
Handle |
3.672 in (93.26 mm) |
1.515 in (38.48 mm) |
Corrosion/Moisture Resistant |
Series Trip |
2.264 in (57.51 mm) |
UL |
2 |
85 °C (185 °F) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
240 V |
20 A |
Screw |
-40 °C (-40 °F) |
2 kA |
Sealed Toggle |
1.375 in (34.93 mm) |
1.3 in (33.02 mm) |
Moisture Resistant; IP68; |
Series Trip |
2.158 in (54.81 mm) |
2 |
85 °C (185 °F) |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
20 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 |
1 |
60 °C (140 °F) |
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|
|
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 |
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|
|
Siemens |
Thermal Circuit Breaker |
Panel Mount |
600 V |
250 V |
20 A |
Screw |
-25 °C (-13 °F) |
65 kA |
Toggle |
5.5 in (139.7 mm) |
2 in (50.8 mm) |
IP40 |
5.5 x 2 x 3 in (139.7 x 50.8 x 76.2 mm) |
Trip |
3 in (76.2 mm) |
2 |
70 °C (158 °F) |
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|
|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
20 A |
Screw And Snap On |
-20 °C (-4 °F) |
2 kA |
Rotary Handle |
5.669 in (144 mm) |
1.772 in (45 mm) |
IP00; IP20 |
5.669 x 1.772 x 3.819 in (144 x 45 x 97 mm) |
Trip |
3.819 in (97 mm) |
3 |
60 °C (140 °F) |
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|
|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
20 A |
Screw And Snap On |
-20 °C (-4 °F) |
2 kA |
Rotary Handle |
5.669 in (144 mm) |
1.772 in (45 mm) |
IP00; IP20 |
5.669 x 1.772 x 3.819 in (144 x 45 x 97 mm) |
Trip |
3.819 in (97 mm) |
3 |
60 °C (140 °F) |
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|
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) |
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|
|
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) |
|||||||||||
|
|
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) |
|||||||||||
|
|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
20 A |
Screw And Snap On |
-20 °C (-4 °F) |
2 kA |
3RV2021-4BA10 |
3.819 in (97 mm) |
1.772 in (45 mm) |
Moisture Resistant; IP20 |
3.819 x 1.772 x 3.815 in (97 x 45 x 96.9 mm) |
3.815 in (96.9 mm) |
CCC; CSA; EAC; KTL; UL |
3 |
60 °C (140 °F) |
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|
|
Phoenix Contact |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
277 V |
60 V |
20 A |
Snap On |
-35 °C (-31 °F) |
10 kA |
Bulk |
4.567 in (116 mm) |
0.693 in (17.6 mm) |
2.665 in (67.7 mm) |
CUL; IEC-60947-2; UL |
1 |
70 °C (158 °F) |
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|
|
Siemens |
Thermal Circuit Breaker |
DIN Rail Mount |
400 V |
20 A |
Snap On |
-25 °C (-13 °F) |
5 kA |
3.535 in (89.8 mm) |
0.693 in (17.6 mm) |
IP20; Sealed |
3.535 x 0.693 x 3.008 in (89.8 x 17.6 x 76.4 mm) |
Trip |
3.008 in (76.4 mm) |
CCC; CE; IMQ; RCM; UL; VDE |
1 |
55 °C (131 °F) |
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|
|
Siemens |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
690 V |
20 A |
Snap On |
-20 °C (-4 °F) |
2 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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|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
250 V |
50 V |
20 A |
Quick Connect |
-20 °C (-4 °F) |
2 kA |
Rated breaking capacity at 50 VDC: 2500 A |
Push To Reset |
1.142 in (29 mm) |
0.571 in (14.5 mm) |
Corrosion/Moisture Resistant; IP00; IP40 |
Trip Free |
1.831 in (46.5 mm) |
CQC; CSA; UL; VDE |
1 |
60 °C (140 °F) |
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|
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) |
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|
Carling Technologies |
Magnetic Circuit Breaker |
Panel Mount |
80 V |
20 A |
Stud |
-40 °C (-40 °F) |
10 kA |
Handle |
2.5 in (63.5 mm) |
0.755 in (19.18 mm) |
Corrosion/Moisture Resistant |
Series Trip |
1.85 in (47 mm) |
CSA; TUV; UL |
1 |
85 °C (185 °F) |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Inline/Holder |
240 V |
28 V |
20 A |
Tab/Blade |
-20 °C (-4 °F) |
200 A |
Manual Reset |
1.26 in (32 mm) |
0.551 in (14 mm) |
Trip Free |
1.563 in (39.7 mm) |
CSA; CUL; UL; VDE |
1 |
60 °C (140 °F) |
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|
Omron |
Thermal Magnetic Circuit Breaker |
DIN Rail Mount |
440 V |
20 A |
Screw |
-20 °C (-4 °F) |
10 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 |
20 A |
Screw |
-20 °C (-4 °F) |
105 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) |
|||||||||||
|
|
Altech |
Magnetic Circuit Breaker |
DIN Rail Mount |
240 V |
20 A |
Snap On |
10 kA |
Toggle |
4.134 in (105 mm) |
1.378 in (35 mm) |
Trip |
2.362 in (60 mm) |
CUL; UL |
1 |
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|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
240 V |
50 V |
20 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) |
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|
|
Idec |
Magnetic Circuit Breaker |
Panel Mount |
250 V |
20 A |
Stud |
-40 °C (-40 °F) |
1 kA |
Lever |
2.48 in (63 mm) |
2.256 in (57.3 mm) |
Series Trip |
1.87 in (47.5 mm) |
CCC; CE; CUL; PSE; UL; VDE |
3 |
85 °C (185 °F) |
|||||||||||
|
|
E-t-a Elektrotechnische Apparate |
Thermal Circuit Breaker |
Panel Mount |
115 V |
20 A |
Quick Connect |
-30 °C (-22 °F) |
5 kA |
Rated breaking capacity at 50 VDC: 1000 A |
Rocker |
Corrosion Resistant; IP00; IP40 |
Manual On/Off |
CCC; CE; CSA; CQC; KTL; UKCA; UL; VDE |
2 |
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.