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

41 - 60 van 2069 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. 173-9828
Fabrikantnummer4400.0015
FabrikantSchurter
€ 4,876
Each (In a Box of 100)
Aantal stuks
8A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 284-5861
Fabrikantnummer4400.0015
FabrikantSchurter
€ 8,48
Each
Aantal stuks
8A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 868-8885
Fabrikantnummer4404.0039
FabrikantSchurter
€ 0,607
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. 323-8999
FabrikantnummerGB2CD06
€ 33,22
Each
Aantal stuks
1A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 899-9204
Fabrikantnummer3Z2.5UM
FabrikantAltech
€ 154,10
Each
Aantal stuks
2.5A 3 - 480Y/277V - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, Components which Fail-Short, Components/Devices with Low Surge Current and Short Circuit Withstand Capabilities, Semiconductors, UL508 Application Time Delay 10 kA MCCB - - - -
RS-stocknr. 284-5827
Fabrikantnummer4400.0009
FabrikantSchurter
€ 8,48
Each
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 728-8623
Fabrikantnummer105-P10-2A
FabrikantETA
€ 11,18
Each
Aantal stuks
2A 1 - - - 105 - - - - - - - -
RS-stocknr. 173-9833
Fabrikantnummer4400.0017
FabrikantSchurter
€ 4,876
Each (In a Box of 100)
Aantal stuks
16A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 782-7833
FabrikantnummerW67-X2Q12-10
FabrikantTE Connectivity
€ 18,91
Each
Aantal stuks
10A 1 - 277V ac 0.75in W67 - - - - - - - -
RS-stocknr. 173-9821
Fabrikantnummer4400.0009
FabrikantSchurter
€ 4,876
Each (In a Box of 100)
Aantal stuks
2.5A 1 - 240V ac - T11 - - - - - - - -
RS-stocknr. 323-9037
FabrikantnummerGB2CD10
€ 33,35
Each
Aantal stuks
5A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 2 (ac) kA - - - - -
RS-stocknr. 728-8645
Fabrikantnummer106-P10-000040-2A
FabrikantETA
€ 14,25
Each
Aantal stuks
2A 1 - - - 106 - - - - - - - -
RS-stocknr. 868-9049
Fabrikantnummer4430.0031
FabrikantSchurter
€ 15,143
Each (In a Pack of 20)
Aantal stuks
15A 2 - 60 V dc, 240 V ac - TA45 - - - - - - - -
RS-stocknr. 868-8829
Fabrikantnummer4404.0019
FabrikantSchurter
€ 2,128
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. 286-4165
Fabrikantnummer3120-F521-H7T1-W01D-20A
FabrikantETA
€ 29,60
Each
Aantal stuks
20A 2 - - 25mm 3120 - - - - - - - -
RS-stocknr. 312-3639
FabrikantnummerGB2CB06
€ 19,00
Each
Aantal stuks
1A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS-stocknr. 284-6101
Fabrikantnummer4410.0106
FabrikantSchurter
€ 19,20
Each
Aantal stuks
10A 1 - 240V ac 11.5mm T12 - - - - - - - -
RS-stocknr. 868-9193
Fabrikantnummer4430.2299
FabrikantSchurter
€ 22,27
Each
Aantal stuks
15A - - 220 → 240V - - - - - MCB - - - -
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. 729-2849
Fabrikantnummer3600-P10-Si-4A
FabrikantETA
€ 69,75
Each
Aantal stuks
4A 1 - - 11.5mm 3600 - - - - - - - -
Related Products
All-current-sensitive FI circuit breaker for detection of residual ...
Description:
All-current-sensitive FI circuit breaker for detection of residual AC currents, pulsating and smooth residual DC currentsIncreased operating reliability in networks with capacitive impedances based on adapted actuation characteristicSwitch handle and test button may be locked via handle lockTime-delayed disconnect ...
The 3120 circuit breaker/switch combination is an ON/OFF ...
Description:
The 3120 circuit breaker/switch combination is an ON/OFF switch with integral overcurrent protection (S-type TO CBE). The trip element is a bimetal. Type 3120 is ideally suited for overload protection of motors, pumps, transformers and cables. Product characteristics:rocker or push ...
Single, two and three pole rocker switch/thermal trip ...
Description:
Single, two and three pole rocker switch/thermal trip free circuit breakers (S-type TO CBE) of compact design for snap-in panel mounting. Available either with protection on one/both/all poles or, in the case of the double pole version, protection on one ...
IEC Classification S/TO (with module, S/TM), Illuminated switch ...
Description:
IEC Classification S/TO (with module, S/TM), Illuminated switch and circuit breaker combined units which offer both mechanical and visual indication of contact position and power status. Available in red or green illumination (suitable for medical applications).H7T1 Variant units can also ...