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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Omschrijving Prijs 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-stocknr. 173-9813
Fabrikantnummer4400.0056
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
1.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5805
Fabrikantnummer4400.0056
FabrikantSchurter
9,00 €
Each
Aantal stuks
1.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 868-8796
Fabrikantnummer4400.0098
FabrikantSchurter
6,173 €
Each (In a Pack of 100)
Aantal stuks
3 A, 300 mA 1 - 48 V dc, 240 V ac - T11 - - - - - - - -
RS-stocknr. 868-9042
Fabrikantnummer4430.0034
FabrikantSchurter
16,077 €
Each (In a Pack of 20)
Aantal stuks
16A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 868-8778
Fabrikantnummer4400.0010
FabrikantSchurter
8,77 €
Each
Aantal stuks
3A 1 - 48 V dc, 240 V ac - T11-211 Household Appliances, Industrial Appliances, Power Supplies and Chargers, Power Tools - 2 kA MCB - - - -
RS-stocknr. 173-9829
Fabrikantnummer4400.0031
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-6016
Fabrikantnummer4400.0034
FabrikantSchurter
9,00 €
Each
Aantal stuks
16A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5883
Fabrikantnummer4400.0052
FabrikantSchurter
9,00 €
Each
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9821
Fabrikantnummer4400.0009
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-6000
Fabrikantnummer4400.0031
FabrikantSchurter
9,00 €
Each
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9830
Fabrikantnummer4400.0034
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
16A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9832
Fabrikantnummer4400.0052
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5827
Fabrikantnummer4400.0009
FabrikantSchurter
9,00 €
Each
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5849
Fabrikantnummer4400.0001
FabrikantSchurter
6,29 €
Each
Aantal stuks
4A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5934
Fabrikantnummer4400.0002
FabrikantSchurter
9,00 €
Each
Aantal stuks
2A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9839
Fabrikantnummer4400.0002
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
2A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9812
Fabrikantnummer4400.0008
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
1A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-6072
Fabrikantnummer4410.0126
FabrikantSchurter
20,38 €
Each
Aantal stuks
2A 1 - 240V ac - T12 - - - - - - - -
RS-stocknr. 284-6117
Fabrikantnummer4410.0019
FabrikantSchurter
20,38 €
Each
Aantal stuks
12A 1 - 240V ac - T12 - - - - - - - -
RS-stocknr. 868-9064
Fabrikantnummer4430.0479
FabrikantSchurter
35,43 €
Each
Aantal stuks
5.5A 2 - 120V ac - TA45 - - - - - - - -