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. 855-7352
Mfr. Part No.0911047
MYR2,655.01
1 Box of 5
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 855-7361
Mfr. Part No.0912034
MYR2,655.01
1 Box of 5
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 881-0401
Mfr. Part No.1656660
MYR23.95
Each
units
- - - - - VS-SI-BZ - - - - - - - -
RS Stock No. 801-6918
Mfr. Part No.0712275
MYR71.92
Each
units
6A 1 - 65 V dc, 250 V ac 8.2mm TCP 6A - - - - - - - -
RS Stock No. 170-3785
Mfr. Part No.0712152
MYR63.622
Each (In a Box of 20)
units
500mA 1 - 65 V dc, 250 V ac 8.2mm TCP 0.5A - - - - - - - -
RS Stock No. 855-7359
Mfr. Part No.0912020
MYR2,665.51
1 Box of 5
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 855-7403
Mfr. Part No.2800927
MYR219.51
Each
units
- - - - - - - - - - - - - -
RS Stock No. 801-6898
Mfr. Part No.0712152
MYR71.92
Each
units
500mA 1 - 65 V dc, 250 V ac 8.2mm TCP 0.5A - - - - - - - -
RS Stock No. 855-7393
Mfr. Part No.2800914
MYR218.28
Each
units
- - - - - - - - - - - - - -
RS Stock No. 170-3791
Mfr. Part No.0712275
MYR63.622
Each (In a Box of 20)
units
6A 1 - 65 V dc, 250 V ac 8.2mm TCP 6A - - - - - - - -
RS Stock No. 801-6902
Mfr. Part No.0712217
MYR68.25
Each
units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
RS Stock No. 882-2312
Mfr. Part No.0915810
MYR2,221.07
1 Box of 6
Box(es)
- - - - - - - - - - - - - -
RS Stock No. 882-2328
Mfr. Part No.0915849
MYR2,091.94
1 Box of 6
Box(es)
12A - - 65 V dc, 250 V ac - TMCP 1 M1 300 12.0A - - - - - - - -
RS Stock No. 882-2322
Mfr. Part No.0915852
MYR1,835.91
1 Box of 6
Box(es)
- - - - - - - - - - - - - -
New
RS Stock No. 201-6710
Mfr. Part No.2800900
MYR243.95
Each
units
16A 2 Trabtech 80V dc 24.6mm CB TM2 - - - - - - - -
RS Stock No. 881-8228
Mfr. Part No.1688887
MYR29.118
Each (In a Box of 10)
units
- - - - - VS-15-BU-DSUB-EG - - - - - - - -
RS Stock No. 170-3790
Mfr. Part No.0712314
MYR68.31
Each (In a Box of 20)
units
10A 1 - 65 V dc, 250 V ac 8.2mm TCP 10A - - - - - - - -
New
RS Stock No. 201-5339
Mfr. Part No.2800843
MYR122.00
Each
units
10A 1 Trabtech 50V dc 12.3mm CB TM1 - - - - - - - -
RS Stock No. 881-8206
Mfr. Part No.1688654
MYR82.52
1 Box of 5
Box(es)
- - - - - VS-08-A-RJ45/LP-2-IP 20 - - - - - - - -
New
RS Stock No. 201-5733
Mfr. Part No.2800845
MYR122.00
Each
units
16A 1 Trabtech 50V dc 12.3mm CB TM1 - - - - - - - -