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. 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. 312-3689
FabrikantnummerGB2CB12
18,41 €
Each
Aantal stuks
6A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 1.5 (ac) kA - - - - -
RS-stocknr. 405-9236
Fabrikantnummer4130-G211-K4M1-40A
FabrikantETA
32,92 €
Each
Aantal stuks
40A 1 - - 18mm 4130 - - - - - - - -
RS-stocknr. 312-3796
FabrikantnummerGB2DB08
36,73 €
Each
Aantal stuks
3A 2 - 277 V ac, 415 V ac 30mm GB2 - - 1 (dc) kA, 10 (ac) kA - - - - -
RS-stocknr. 272-943
FabrikantnummerGV3P50
219,90 €
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS-stocknr. 282-6539
Fabrikantnummer2210-T210-K0M1-H121-3A
FabrikantETA
39,07 €
Each
Aantal stuks
3A 1 - - 12.5mm 2210 - - - - - - - -
RS-stocknr. 333-265
Fabrikantnummer201-5A
FabrikantETA
40,23 €
Each
Aantal stuks
5A 1 - - 80mm 201 - - - - - - - -
RS-stocknr. 344-5327
Fabrikantnummer1658-G21-02-P10-6A
FabrikantETA
7,17 €
Each
Aantal stuks
6A 1 - - 14mm 1658 - - - - - - - -
RS-stocknr. 458-8728
Fabrikantnummer1180-01-6A
FabrikantETA
17,34 €
Each
Aantal stuks
6A 1 - - 8.2mm 1180 - - - - - - - -
RS-stocknr. 728-8648
Fabrikantnummer106-P10-000040-3A
FabrikantETA
15,15 €
Each
Aantal stuks
3A 1 - - 15.7mm 106 - - - - - - - -
RS-stocknr. 312-3774
FabrikantnummerGB2DB06
36,73 €
Each
Aantal stuks
1A 2 - 277 V ac, 415 V ac 30mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 405-9214
Fabrikantnummer4130-G211-K4M1-35A
FabrikantETA
32,92 €
Each
Aantal stuks
35A 1 - - 18mm 4130 - - - - - - - -
RS-stocknr. 312-3831
FabrikantnummerGB2DB12
36,73 €
Each
Aantal stuks
6A 2 - 277 V ac, 415 V ac 30mm GB2 - - 1 (dc) kA, 1.5 (ac) kA - - - - -
RS-stocknr. 312-3768
FabrikantnummerGB2DB05
36,73 €
Each
Aantal stuks
500mA 2 - 277 V ac, 415 V ac 30mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 272-909
FabrikantnummerGV3P25
158,53 €
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 6 kA - - - - -
RS-stocknr. 782-6593
FabrikantnummerW28-XQ1A-12
FabrikantTE Connectivity
4,08 €
Each
Aantal stuks
12A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS-stocknr. 729-2786
Fabrikantnummer3120-F554-P7T1-W02D-20A
FabrikantETA
28,03 €
Each
Aantal stuks
20A 2 - - 25mm 3120-F - - - - - - - -
RS-stocknr. 272-921
FabrikantnummerGV3P40
195,50 €
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS-stocknr. 405-9157
Fabrikantnummer2-5700-IG1-P10-DD-000040-15A
FabrikantETA
21,13 €
Each
Aantal stuks
15A 1 - - 15.7mm 2-5700 - - - - - - - -
RS-stocknr. 323-9009
FabrikantnummerGB2CD07
34,70 €
Each
Aantal stuks
2A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 15 (ac) kA - - - - -