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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Description Price 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 Stock No. 801-6902
Mfr. Part No.0712217
kr 199,80
Each
Units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
RS Stock No. 170-3786
Mfr. Part No.0712217
kr 181,649
Each (In a Box of 20)
Units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
RS Stock No. 768-1104
Mfr. Part No.2800917
kr 302,49
Each
Units
3A 1 TRABTECH - 12.3mm CB E1 24DC/3A NC P - - - - - - - -
RS Stock No. 768-1101
Mfr. Part No.2800916
kr 302,49
Each
Units
2A 1 TRABTECH - 12.3mm CB E1 24DC/2A P - - - - - - - -
RS Stock No. 768-1079
Mfr. Part No.2800905
kr 302,49
Each
Units
6A 1 TRABTECH - 12.3mm CB E1 24DC/6A - - - - - - - -
RS Stock No. 881-8203
Mfr. Part No.1688638
kr 290,03
1 Box of 5
Box(es)
- - - - - VS-08-T-RJ45/IP 20 - - - - - - - -
RS Stock No. 768-0921
Mfr. Part No.2800859
kr 280,46
Each
Units
2A 1 TRABTECH - 12.3mm CB TM1 2A F1 P - - - - - - - -
RS Stock No. 855-7393
Mfr. Part No.2800914
kr 377,00
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 855-7368
Mfr. Part No.0912033
kr 3 008,55
1 Box of 5
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 881-8155
Mfr. Part No.1688081
kr 1 405,77
1 Box of 10
Box(es)
- - - - - VS-15-ST-DSUB-ER - - - - - - - -
RS Stock No. 801-6952
Mfr. Part No.0903037
kr 687,315
Each (In a Pack of 6)
Units
- - - - - - - - - - - - - -
RS Stock No. 885-6261
Mfr. Part No.3000763
kr 450,495
1 Box of 6
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 881-8146
Mfr. Part No.1687273
kr 2 243,25
1 Box of 10
Box(es)
- - - - - HC-B 16-SD-FQT/FS - - - - - - - -
RS Stock No. 170-3789
Mfr. Part No.0712291
kr 181,524
Each (In a Box of 20)
Units
8A 1 - 65 V dc, 250 V ac 8.2mm TCP 8A - - - - - - - -
RS Stock No. 881-8262
Mfr. Part No.1689336
kr 424,62
1 Box of 10
Box(es)
- - - - - VS-PSC 1.5/3-M PE - - - - - - - -
RS Stock No. 881-8228
Mfr. Part No.1688887
kr 648,05
1 Box of 10
Box(es)
- - - - - VS-15-BU-DSUB-EG - - - - - - - -
RS Stock No. 885-6264
Mfr. Part No.3000765
kr 435,549
1 Box of 10
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 768-0937
Mfr. Part No.2800862
kr 280,46
Each
Units
5A 1 TRABTECH - 12.3mm CB TM1 5A F1 P - - - - - - - -
RS Stock No. 882-2300
Mfr. Part No.0915797
kr 4 341,74
1 Box of 6
Box(es)
4A 2 - 65 V dc, 250 V ac 12.5mm TMCP 1 M1 300 4A - - - - - - - -
RS Stock No. 170-3790
Mfr. Part No.0712314
kr 176,25
Each (In a Box of 20)
Units
10A 1 - 65 V dc, 250 V ac 8.2mm TCP 10A - - - - - - - -