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. 284-5861
Fabrikantnummer4400.0015
FabrikantSchurter
€ 8,74
Each
Aantal stuks
8A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5827
Fabrikantnummer4400.0009
FabrikantSchurter
€ 8,74
Each
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9828
Fabrikantnummer4400.0015
FabrikantSchurter
€ 5,023
Each (In a Box of 100)
Aantal stuks
8A 1 - 240V ac - T11 - - - - - - - -
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. 728-8623
Fabrikantnummer105-P10-2A
FabrikantETA
€ 11,18
Each
Aantal stuks
2A 1 - - - 105 - - - - - - - -
RS-stocknr. 868-8885
Fabrikantnummer4404.0039
FabrikantSchurter
€ 0,697
Each (In a Pack of 50)
Aantal stuks
- 1 - - - T9-711 Household Appliances, HVAC, Industrial Appliances, Medical, Power Supplies, Power Tools, Uninterruptible Power Supply - 2 kA - - - - -
RS-stocknr. 173-9821
Fabrikantnummer4400.0009
FabrikantSchurter
€ 5,023
Each (In a Box of 100)
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9832
Fabrikantnummer4400.0052
FabrikantSchurter
€ 5,023
Each (In a Box of 100)
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 173-9836
Fabrikantnummer4410.0106
FabrikantSchurter
€ 17,993
Each (In a Box of 20)
Aantal stuks
10A 1 - 240V ac 11.5mm T12 - - - - - - - -
RS-stocknr. 286-4165
Fabrikantnummer3120-F521-H7T1-W01D-20A
FabrikantETA
€ 35,52
Each
Aantal stuks
20A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 284-5883
Fabrikantnummer4400.0052
FabrikantSchurter
€ 8,74
Each
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-6101
Fabrikantnummer4410.0106
FabrikantSchurter
€ 19,79
Each
Aantal stuks
10A 1 - 240V ac 11.5mm T12 - - - - - - - -
RS-stocknr. 782-0892
FabrikantnummerW58-XB1A4A-10
FabrikantTE Connectivity
€ 6,86
Each
Aantal stuks
10A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS-stocknr. 728-8645
Fabrikantnummer106-P10-000040-2A
FabrikantETA
€ 14,25
Each
Aantal stuks
2A 1 - - - 106 - - - - - - - -
RS-stocknr. 782-0889
FabrikantnummerW23-X1A1G-3
FabrikantTE Connectivity
€ 40,87
Each
Aantal stuks
3A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS-stocknr. 416-691
FabrikantnummerAF1X0038021F2D
FabrikantCarlingswitch
€ 18,44
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 868-8829
Fabrikantnummer4404.0019
FabrikantSchurter
€ 2,554
Each (In a Pack of 10)
Aantal stuks
4A 1 - - - T9-311 Household Appliances, HVAC, Industrial Appliances, Medical, Power Supplies, Power Tools, Uninterruptible Power Supply - 2 kA MCB 9.6mm 8.9mm 8.9 x 9.6 (Dia.)mm -
RS-stocknr. 899-4931
Fabrikantnummer3D1UM
FabrikantAltech
€ 46,063
Each (In a Pack of 4)
Aantal stuks
1A 3 - 480Y/277V - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, Heaters and Reactive Loads, High Inrush Motors, Power Supplies, Transformers, UL508 Application Time Delay 10 kA MCCB - - - -
RS-stocknr. 849-5945
FabrikantnummerCBC-50HB
FabrikantCooper Bussmann
€ 11,70
Each (In a Pack of 10)
Aantal stuks
50A - - 14V dc - CBC-HB - - - - - - - -
RS-stocknr. 899-1664
Fabrikantnummer2DU32R
FabrikantAltech
€ 20,47
Each
Aantal stuks
32A 2 - 480Y/277V - R Appliance Circuit, Control Transformers, Power Supplies, Power Supplies and Reactive Loads, Sensitive Electronics, UL1077 Application Time Delay 10 kA MCCB - - - -
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