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. 869-2701
Fabrikantnummer4435.0052
FabrikantSchurter
€ 0,798
Each (In a Pack of 50)
Aantal stuks
- 1 - - - TA35 - - - - 2.5mm - 2.5 (Dia.)mm -
RS-stocknr. 868-8881
Fabrikantnummer4404.0038
FabrikantSchurter
€ 1,625
Each (In a Pack of 100)
Aantal stuks
15A 1 - - - T9-711 Household Appliances, HVAC, Industrial Appliances, Medical, Power Supplies, Power Tools, Uninterruptible Power Supply - 2 kA MCB 15.9mm 13.9mm 13.9 x 15.9 (Dia.)mm -
RS-stocknr. 335-974
Fabrikantnummer106-P30-000040-4A
FabrikantETA
€ 10,46
Each
Aantal stuks
4A 1 - - 19mm 106-P30 - - - - - - - -
RS-stocknr. 868-8908
Fabrikantnummer4410.0655
FabrikantSchurter
€ 31,863
Each (In a Pack of 20)
Aantal stuks
1A 1 - 28 V dc, 240 V ac - T12-211 Household Appliances, Power Supplies, Power Tools, Uninterruptible Power Supply - 1 kA MCB 9.6mm 8.9mm 8.9 x 9.6 (Dia.)mm -
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 - - - - - - - -
RS-stocknr. 284-5934
Fabrikantnummer4400.0002
FabrikantSchurter
€ 8,74
Each
Aantal stuks
2A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 881-4920
FabrikantnummerC1005B-3B101BR3
€ 1,758
Each (In a Pack of 10)
Aantal stuks
10A - - - - C1005B Audio Visual Equipment, Commercial Applications, Generators, Household Appliances, Marine Applications, Medical Equipment, Power Strips, Power Supplies, Telecommunications, Transportation Time Delayed 1000 A - - 14mm 14 x 28.6mm 28.6mm
RS-stocknr. 284-5798
Fabrikantnummer4400.0008
FabrikantSchurter
€ 7,86
Each
Aantal stuks
1A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 881-4835
FabrikantnummerBA1-B0-34-450-121-D
€ 13,92
Each
Aantal stuks
5A 1 - - - B Control Panels, Generator and Welder Markets, Marine Applications, Medical Equipment, Military, Office Equipment, Power Supplies Medium 5000 A @ 120 V ac, 5000 A @ 80 V dc MCCB 16mm - - -
RS-stocknr. 409-889
Fabrikantnummer1610-21-10A
FabrikantETA
€ 11,75
Each
Aantal stuks
10A 1 - 32V dc 20mm 1610 - - - - - - - -
RS-stocknr. 417-010
Fabrikantnummer1110-F112-P1M1-10A
FabrikantETA
€ 16,91
Each
Aantal stuks
10A 1 - - 19mm 1110 - - - - - - - -
RS-stocknr. 173-9812
Fabrikantnummer4400.0008
FabrikantSchurter
€ 5,023
Each (In a Box of 100)
Aantal stuks
1A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 286-4171
Fabrikantnummer3120-F32F-H7T1-SGRX-1A
FabrikantETA
€ 29,42
Each
Aantal stuks
1A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 869-2767
Fabrikantnummer4435.0572
FabrikantSchurter
€ 10,25
Each (In a Pack of 20)
Aantal stuks
2.5A 1 - 32 V dc, 240 V ac - TA35 - - - - - - - -
RS-stocknr. 729-2843
Fabrikantnummer3600-P10-Si-6A
FabrikantETA
€ 69,75
Each
Aantal stuks
6A 1 - - 11.5mm 3600 - - - - - - - -
RS-stocknr. 881-1085
FabrikantnummerCLB-253-11A3N-B-A
€ 4,63
Each
Aantal stuks
25A 1 - - - CLB Audio Visual Equipment, Household Appliances, Marine Applications, Medical Equipment, Power Strips, Power Supplies, Transportation Time Delayed 2500 A @ 32 V dc - - 10mm 10 x 11.2mm 11.2mm
RS-stocknr. 881-0811
FabrikantnummerCA1-B0-34-275-121-D
€ 42,417
Each (In a Pack of 6)
Aantal stuks
750mA 1 - - - C General Purpose Medium 5000 A @ 125/250 V dc, 10000 A @ 277 V ac MCCB - 19.3mm 19.3 x 52.37mm 52.4mm
RS-stocknr. 774-0027
FabrikantnummerFC6610A
€ 6,86
Each
Aantal stuks
10A - - - 11mm A-0709 - - - - - - - -
RS-stocknr. 173-9839
Fabrikantnummer4400.0002
FabrikantSchurter
€ 5,023
Each (In a Box of 100)
Aantal stuks
2A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 899-1816
Fabrikantnummer2EU05
FabrikantAltech
€ 43,37
Each
Aantal stuks
500mA 2 - - - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, High Efficiency Motors, UL508 Application, Which have Exceedingly High Inrush Current Time Delay 10 kA MCCB - - - -
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