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. 729-2786
Fabrikantnummer3120-F554-P7T1-W02D-20A
FabrikantETA
€ 27,48
Each
Aantal stuks
20A 2 - - - 3120-F - - - - - - - -
RS-stocknr. 608-8769
FabrikantnummerGV3ME80
€ 238,90
Each
Aantal stuks
- 3 TeSys 690V ac 61mm GV3M - - 100 kA - - - - -
RS-stocknr. 782-6607
FabrikantnummerW28-XQ1A-6
FabrikantTE Connectivity
€ 3,07
Each
Aantal stuks
6A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-stocknr. 774-0036
FabrikantRS PRO
€ 8,00
Each
Aantal stuks
13A - - - 11mm A-0709 - - - - - - - -
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. 273-0854
Fabrikantnummer1658-G21-02-P10-5A
FabrikantETA
€ 8,96
Each
Aantal stuks
5A 1 - - 32mm 1658 - - - - - - - -
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. 405-9157
Fabrikantnummer2-5700-IG1-P10-DD-000040-15A
FabrikantETA
€ 16,44
Each
Aantal stuks
15A 1 - - 29mm 2-5700 - - - - - - - -
RS-stocknr. 782-0921
FabrikantnummerW28-XQ1A-7
FabrikantTE Connectivity
€ 3,37
Each
Aantal stuks
7A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-stocknr. 272-943
FabrikantnummerGV3P50
€ 192,91
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS-stocknr. 868-9099
Fabrikantnummer4430.0890
FabrikantSchurter
€ 19,779
Each (In a Pack of 20)
Aantal stuks
15A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 868-8780
Fabrikantnummer4400.0065
FabrikantSchurter
€ 5,40
Each (In a Pack of 100)
Aantal stuks
15A 1 - 48 V dc, 240 V ac - T11 - - - - - - - -
RS-stocknr. 868-8778
Fabrikantnummer4400.0010
FabrikantSchurter
€ 8,27
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. 782-0924
FabrikantnummerW28-XQ1A-5
FabrikantTE Connectivity
€ 3,24
Each
Aantal stuks
5A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-stocknr. 405-9129
Fabrikantnummer2-5700-IG1-P10-DD-000040-2.5A
FabrikantETA
€ 16,44
Each
Aantal stuks
2.5A 1 - - 29mm 2-5700 - - - - - - - -
RS-stocknr. 405-9135
Fabrikantnummer2-5700-IG1-P10-DD-000040-7A
FabrikantETA
€ 16,44
Each
Aantal stuks
7A 1 - - 29mm 2-5700 - - - - - - - -
RS-stocknr. 782-0882
FabrikantnummerW23-X1A1G-50
FabrikantTE Connectivity
€ 23,68
Each
Aantal stuks
50A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS-stocknr. 868-9285
Fabrikantnummer4430.2924
FabrikantSchurter
€ 28,576
Each (In a Pack of 20)
Aantal stuks
8A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 739-6888
Fabrikantnummer3120-F521-H7T1-W01D-20A-U0000M
FabrikantETA
€ 59,37
Each
Aantal stuks
20A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 173-9827
Fabrikantnummer4400.005
FabrikantSchurter
€ 6,166
Each (In a Box of 100)
Aantal stuks
6 1 - 240V ac - T11 - - - - - - - -
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