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.


...
อ่านเพิ่มเติม อ่านน้อยกว่า

คัดกรอง / Filters

กำลังดูสินค้า 1 - 20 รายการจาก 2050 รายการ / Viewing 1 - 20 of 2050 products
ผลการค้นหาต่อหน้า / Results Per Page
รายละเอียดสินค้า / Description ราคา / Price 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 Stock No. 774-0067
Brand :RS PRO
THB116.28
Each
Units
16A - - - 14.1mm A-0709 - - - - - - - -
RS Stock No. 774-0099
Brand :RS PRO
THB154.27
Each
Units
2.2A 2 - 250V ac 6mm AN - - - - - - - -
RS Stock No. 774-0023
Brand :RS PRO
THB283.64
Each
Units
9A - - - 11mm A-0709 - - - - - - - -
RS Stock No. 774-0045
Brand :RS PRO
THB115.75
Each
Units
6A - - 32 V dc, 240 V ac 14.1mm A-0709 - - - - - - - -
RS Stock No. 774-0039
Brand :RS PRO
THB274.99
Each
Units
16A - - - 11mm A-0709 - - - - - - - -
RS Stock No. 774-0051
Brand :RS PRO
THB212.34
Each
Units
9A - - - 14.1mm A-0709 - - - - - - - -
RS Stock No. 774-0042
Brand :RS PRO
THB120.13
Each
Units
5A - - - 14.1mm A-0709 - - - - - - - -
RS Stock No. 774-0036
Brand :RS PRO
THB220.95
Each
Units
13A - - - 11mm A-0709 - - - - - - - -
RS Stock No. 774-0020
Brand :RS PRO
THB274.79
Each
Units
8A - - - 11mm A-0709 - - - - - - - -
RS Stock No. 608-8769
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3ME80
THB10,991.06
Each
Units
- 3 TeSys 690V ac 61mm GV3M - - 100 kA - - - - -
RS Stock No. 272-943
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3P50
THB8,180.24
Each
Units
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS Stock No. 729-2809
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3130-F130-P7T1-W02Q-5A
Brand :ETA
THB1,191.30
Each
Units
5A 3 - - - 3130 - - - - - - - -
RS Stock No. 286-4014
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3120-F551-H7T1-W02D-10A
Brand :ETA
THB602.29
Each
Units
10A 2 - - 25mm 3120 - - - - - - - -
RS Stock No. 286-4137
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3120-F521-H7T1-W01D-10A
Brand :ETA
THB890.18
Each
Units
10A 2 - - 25mm 3120 - - - - - - - -
RS Stock No. 782-0902
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W58-XB1A4A-15
THB179.55
Each
Units
15A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS Stock No. 729-2868
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-Si-16A
Brand :ETA
THB1,948.01
Each
Units
16A 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 333-237
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.201-1A
Brand :ETA
THB1,019.86
Each
Units
1A 1 - - 80mm 201 - - - - - - - -
RS Stock No. 323-8999
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD06
THB1,923.45
Each
Units
1A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS Stock No. 333-271
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.201-10A
Brand :ETA
THB1,081.52
Each
Units
10A 1 - - 80mm 201 - - - - - - - -
RS Stock No. 782-8004
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W58-XB1A4A-2
THB253.25
Each
Units
2A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
Related Products
Thanks to its new power terminals, this range ...
Description:
Thanks to its new power terminals, this range of GV3 circuit-breakers assures improved reliability of connections and is designed to maintain a constant tightening force which assures a strong, safe and long lasting connection in the most demanding environments. Thermo ...
All CBEs have blade terminals and have an ...
Description:
All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms). Single-pole, compact T12 series circuit breakers with positive free trigger.Trigger via a bimetallic element.Threaded guide fixing.Essentially designed to protect against overloading motors, transformers, ...
Overload and short circuit protecting, DIN rail mounting, ...
Description:
Overload and short circuit protecting, DIN rail mounting, time delay type thermal-magnetic single-pole CBE, suitable for process control, telecom and other professional/precision applications, etc. Toggle operated trip-free mechanismAuxiliary contact (NC) for remote signalling of contact breaker statusNarrow ...
IEC Classification S/TO (with module, S/TM),This range of ...
Description:
IEC Classification S/TO (with module, S/TM),This range of low cost switch and circuit breaker are an economic way of providing basic protection for equipment.,Typical tripping times at 2xIN, 20-30 seconds faster time can be achieved with the addition of the ...