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. 170-9405
FabrikantnummerW28-XQ1A-10
FabrikantTE Connectivity
2,029 €
Each (In a Bag of 100)
Aantal stuks
10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS-stocknr. 167-5677
FabrikantnummerW28-XQ1A-10
FabrikantTE Connectivity
2,88 €
Each
Aantal stuks
10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS-stocknr. 173-9813
Fabrikantnummer4400.0056
FabrikantSchurter
4,876 €
Each (In a Box of 100)
Aantal stuks
1.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5805
Fabrikantnummer4400.0056
FabrikantSchurter
8,48 €
Each
Aantal stuks
1.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 336-028
Fabrikantnummer106-P30-000040-0.5A
FabrikantETA
10,46 €
Each
Aantal stuks
500mA 1 - - 19mm 106-P30 - - - - - - - -
RS-stocknr. 323-8999
FabrikantnummerGB2CD06
34,70 €
Each
Aantal stuks
1A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 728-8642
Fabrikantnummer106-P10-000040-6A
FabrikantETA
15,15 €
Each
Aantal stuks
6A 1 - - - 106 - - - - - - - -
RS-stocknr. 899-1658
Fabrikantnummer2DU30L
FabrikantAltech
40,94 €
Each
Aantal stuks
30A 2 - - - L Heaters and Reactive Loads, High Inrush Motors, Power Supplies, Transformer, UL489 Applications Time Delay 10 kA MCCB - - - -
RS-stocknr. 728-8651
Fabrikantnummer106-P10-000040-8A
FabrikantETA
15,15 €
Each
Aantal stuks
8A 1 - - - 106 - - - - - - - -
RS-stocknr. 335-968
Fabrikantnummer106-P30-000040-5A
FabrikantETA
10,57 €
Each
Aantal stuks
5A 1 - - 19mm 106-P30 - - - - - - - -
RS-stocknr. 312-3875
FabrikantnummerGB2DB21
36,73 €
Each
Aantal stuks
16A 2 - 277 V ac, 415 V ac 30mm GB2 - - 1.5 kA - - - - -
RS-stocknr. 782-0915
FabrikantnummerW58-XB1A4A-5
FabrikantTE Connectivity
4,56 €
Each
Aantal stuks
5A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-stocknr. 728-8636
Fabrikantnummer106-P10-000040-1A
FabrikantETA
15,15 €
Each
Aantal stuks
1A 1 - - - 105 - - - - - - - -
RS-stocknr. 729-2770
Fabrikantnummer3120-F554-P7T1-W02D-5A
FabrikantETA
27,48 €
Each
Aantal stuks
5A 2 - - - 3120-F - - - - - - - -
RS-stocknr. 405-9179
Fabrikantnummer2-5700-IG1-P10-DD-000040-20A
FabrikantETA
16,44 €
Each
Aantal stuks
20A 1 - - 29mm 2-5700 - - - - - - - -
RS-stocknr. 336-012
Fabrikantnummer106-P30-000040-1A
FabrikantETA
10,57 €
Each
Aantal stuks
1A 1 - - 19mm 106-P30 - - - - - - - -
RS-stocknr. 881-0956
FabrikantnummerCA2-B0-34-630-221-C
130,975 €
Each (In a Pack of 2)
Aantal stuks
30A 2 - - - C General Purpose Medium 5000 A @ 125/250 V dc, 10000 A @ 277 V ac MCCB - 38.6mm 38.61 x 52.37mm 52.4mm
RS-stocknr. 273-0854
Fabrikantnummer1658-G21-02-P10-5A
FabrikantETA
8,96 €
Each
Aantal stuks
5A 1 - - 32mm 1658 - - - - - - - -
RS-stocknr. 282-8743
Fabrikantnummer2210-T210-K0M1-H121-1A
FabrikantETA
36,86 €
Each
Aantal stuks
1A 1 - - 83.5mm 2210 - - - - - - - -
RS-stocknr. 868-9042
Fabrikantnummer4430.0034
FabrikantSchurter
15,143 €
Each (In a Pack of 20)
Aantal stuks
16A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
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