Thermal Magnetic Circuit Breakers

Thermal magnetic circuit breakers are devices that provide protection against overcurrent in circuits. Circuit breakers use an automatically operated electrical switch to disrupt the flow of current when an overload or short circuit is detected. Thermal magnetic circuit breakers do this using an electromagnet and bimetallic strips. 


Circuit breakers provide more sophisticated protection against overcurrent than a simple fuse. Fuses simply burn out and have to be replaced, whereas circuit breakers just need to be reset.


How do thermal magnetic circuit breakers work?

In thermal magnetic circuit breakers, there are two ways the flow of current might be detected and disrupted. In the event of a short circuit, the electromagnet rapidly trips the switch. If the overload is smaller, over a longer period of time, the bimetallic strips will instead eventually react to trip the switch. 


What are thermal magnetic circuit breakers used for?

Thermal magnetic circuit breakers are most often used in distribution boards. They make up part of the subsidiary circuits in the broader electrical supply system, protecting against overcurrent.


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Beskrivning Pris Current Rating Number of Poles Range Voltage Rating Width Series Application Break Time Breaking Capacity at Maximum Voltage Rating Circuit Breaker Type Mounting Hole Diameter Mounting Hole Length Mounting Hole Size Mounting Hole Width
RS-artikelnummer 782-0911
Tillv. art.nrW28-XQ1A-3
VarumärkeTE Connectivity
29,78 kr
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3A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-artikelnummer 782-0921
Tillv. art.nrW28-XQ1A-7
VarumärkeTE Connectivity
34,85 kr
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7A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-artikelnummer 782-8026
Tillv. art.nrW58-XC4C12A-5
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56,04 kr
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5A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-artikelnummer 782-0867
Tillv. art.nrW57-XB7A4A10-10
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14,58 kr
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10A 1 - 250V ac 0.575in W57 - - - - - - - -
RS-artikelnummer 782-6607
Tillv. art.nrW28-XQ1A-6
VarumärkeTE Connectivity
31,74 kr
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6A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-artikelnummer 167-5677
Tillv. art.nrW28-XQ1A-10
VarumärkeTE Connectivity
29,78 kr
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10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS-artikelnummer 782-8057
Tillv. art.nrW51-A121B1-15
VarumärkeTE Connectivity
35,36 kr
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15A 1 - 125V ac 0.598in W51 - - - - - - - -
RS-artikelnummer 782-0915
Tillv. art.nrW58-XB1A4A-5
VarumärkeTE Connectivity
47,15 kr
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5A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-artikelnummer 170-9405
Tillv. art.nrW28-XQ1A-10
VarumärkeTE Connectivity
20,976 kr
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10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS-artikelnummer 782-8079
Tillv. art.nrW51-A122B1-5
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39,71 kr
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5A 1 - 250V ac 0.598in W51 - - - - - - - -
RS-artikelnummer 782-8082
Tillv. art.nrW31-X2M1G-35
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304,62 kr
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35A 1 - 50 V dc, 240 V ac 0.69in W31 - - - - - - - -
RS-artikelnummer 782-7874
Tillv. art.nrW91-X112-20
VarumärkeTE Connectivity
167,40 kr
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20A 1 - 277V ac 0.75in W91 - - - - - - - -
RS-artikelnummer 782-0924
Tillv. art.nrW28-XQ1A-5
VarumärkeTE Connectivity
33,50 kr
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5A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-artikelnummer 782-8085
Tillv. art.nrW31-X2M1G-2
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387,96 kr
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2A 1 - 50 V dc, 240 V ac 0.69in W31 - - - - - - - -
RS-artikelnummer 782-8013
Tillv. art.nrW58-XC4C12A-30
VarumärkeTE Connectivity
67,62 kr
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30A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-artikelnummer 782-0860
Tillv. art.nrW23-X1A1G-15
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15A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS-artikelnummer 782-8016
Tillv. art.nrW54-XB1A4A10-30
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36,29 kr
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30A 1 - 250V ac 0.575in W58 - - - - - - - -
RS-artikelnummer 782-8007
Tillv. art.nrW54-XB1A4A10-25
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36,29 kr
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25A 1 - 250V ac 0.575in W54 - - - - - - - -
RS-artikelnummer 782-0876
Tillv. art.nrW23-X1A1G-30
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241,75 kr
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30A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS-artikelnummer 782-7962
Tillv. art.nrW58-XB1A4A-12
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59,87 kr
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12A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -