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.


...
Lees meer Lees minder

Filters

101 - 120 van 1101 producten worden weergegeven
Resultaten per pagina
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. 272-820
FabrikantnummerGV3L32
157,56 €
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 6 kA - - - - -
RS-stocknr. 286-4020
Fabrikantnummer3120-F551-H7T1-W02D-20A
FabrikantETA
27,59 €
Each
Aantal stuks
20A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 170-3785
Fabrikantnummer0712152
FabrikantPhoenix Contact
15,173 €
Each (In a Box of 20)
Aantal stuks
500mA 1 - 65 V dc, 250 V ac 8.2mm TCP 0.5A - - - - - - - -
RS-stocknr. 801-6898
Fabrikantnummer0712152
FabrikantPhoenix Contact
16,69 €
Each
Aantal stuks
500mA 1 - 65 V dc, 250 V ac 8.2mm TCP 0.5A - - - - - - - -
RS-stocknr. 212-1985
Fabrikantnummer3130-F120-P7T1-W02Q-10A
FabrikantETA
26,51 €
Each
Aantal stuks
10A 2 - - 29.5mm 3130 - - - - - - - -
RS-stocknr. 899-4981
Fabrikantnummer3D32UM
FabrikantAltech
46,06 €
Each
Aantal stuks
32A 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. 885-6264
Fabrikantnummer3000765
FabrikantPhoenix Contact
688,95 €
1 Box of 10
Box(es)
- - - - - - - - - - - - - -
RS-stocknr. 729-2830
Fabrikantnummer3600-P10-SI-0.5A
FabrikantETA
65,09 €
Each
Aantal stuks
500mA 1 - - 11.5mm 3600 - - - - - - - -
RS-stocknr. 312-3702
FabrikantnummerGB2CB14
18,41 €
Each
Aantal stuks
8A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 1.5 (ac) kA - - - - -
RS-stocknr. 122-9303
Fabrikantnummer3400-P10-H-SI-10A
FabrikantETA
70,18 €
Each
Aantal stuks
10A 1 - - 14.5mm 3400 - - - - - - - -
RS-stocknr. 406-9491
Fabrikantnummer2-5700-IG1-P10-DD-000040-25A
FabrikantETA
20,03 €
Each
Aantal stuks
25A 1 - - 15.7mm 2-5700 - - - - - - - -
RS-stocknr. 272-858
FabrikantnummerGV3L65
191,28 €
Each
Aantal stuks
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS-stocknr. 284-5883
Fabrikantnummer4400.0052
FabrikantSchurter
9,04 €
Each
Aantal stuks
12A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 899-1799
Fabrikantnummer2E40UM
FabrikantAltech
35,31 €
Each
Aantal stuks
40A 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 - - - -
RS-stocknr. 286-4165
Fabrikantnummer3120-F521-H7T1-W01D-20A
FabrikantETA
36,23 €
Each
Aantal stuks
20A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 782-7931
FabrikantnummerW57-XB7A4A10-15
FabrikantTE Connectivity
2,57 €
Each
Aantal stuks
15A 1 - 250V ac 0.575in W57 - - - - - - - -
RS-stocknr. 899-4720
Fabrikantnummer3CU10L
FabrikantAltech
61,42 €
Each
Aantal stuks
10A 3 - - - L Lighting and Control Circuit Applications, Low Inrush Motors, Receptacles, Resistive Load, UL489 Application, Wiring Protection Time Delay 10 kA MCCB - - - -
RS-stocknr. 150-085
Fabrikantnummer1610-21-30A
FabrikantETA
12,87 €
Each
Aantal stuks
30A 1 - 32V dc 20mm 1610 - - - - - - - -
RS-stocknr. 173-9821
Fabrikantnummer4400.0009
FabrikantSchurter
5,173 €
Each (In a Box of 100)
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 122-9268
Fabrikantnummer3400-P10-H-SI-0.5A
FabrikantETA
55,21 €
Each
Aantal stuks
500mA 1 - - 14.5mm 3400 - - - - - - - -