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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กำลังดูสินค้า 21 - 40 รายการจาก 1620 รายการ / Viewing 21 - 40 of 1620 products
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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. 333-243
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.201-2A
Brand :ETA
THB1,668.22
Each
Units
2A 1 - - 80mm 201 - - - - - - - -
RS Stock No. 729-2843
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-Si-6A
Brand :ETA
THB2,467.99
Each
Units
6A 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 729-2786
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3120-F554-P7T1-W02D-20A
Brand :ETA
THB1,021.12
Each
Units
20A 2 - - - 3120-F - - - - - - - -
RS Stock No. 344-5327
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1658-G21-02-P10-6A
Brand :ETA
THB368.39
Each
Units
6A 1 - - 32mm 1658 - - - - - - - -
RS Stock No. 801-6909
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712259
THB685.92
Each
Units
4A 1 - 65 V dc, 250 V ac 8.2mm TCP 4A - - - - - - - -
RS Stock No. 170-3787
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712259
THB518.293
Each (In a Box of 20)
Units
4A 1 - 65 V dc, 250 V ac 8.2mm TCP 4A - - - - - - - -
RS Stock No. 801-6902
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712217
THB685.92
Each
Units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
RS Stock No. 170-3786
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712217
THB518.293
Each (In a Box of 20)
Units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
RS Stock No. 272-836
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3L40
THB7,237.08
Each
Units
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS Stock No. 782-7984
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W58-XB1A4A-20
THB276.08
Each
Units
20A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS Stock No. 830-3060
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3P32
THB6,500.73
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 881-5024
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MF1-B-32-410-1-BB2-B-C
THB685.32
Each
Units
1A 1 - - - M Automotive, Communication Equipment, Generators, Marine Applications, Medical Equipment, Power Supplies Short 600 A @ 80 V dc MCB - 18mm 18.03 x 37.08mm 37.1mm
RS Stock No. 272-937
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3P65
THB16,877.34
Each
Units
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS Stock No. 312-3825
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2DB10
THB3,440.51
Each
Units
5A 2 - 277 V ac, 415 V ac 30mm GB2 - - 1 (dc) kA, 2 (ac) kA - - - - -
RS Stock No. 782-0909
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W28-XQ1A-2
THB251.57
Each
Units
2A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS Stock No. 729-2859
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-Si-15A
Brand :ETA
THB2,278.92
Each
Units
15A 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 729-2805
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3130-F130-P7T1-W02Q-1A
Brand :ETA
THB1,614.65
Each
Units
1A 3 - - - 3130 - - - - - - - -
RS Stock No. 610-0910
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD16
THB1,402.24
Each
Units
10A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 1.5 (ac) kA - - - - -
RS Stock No. 170-3785
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712152
THB602.783
Each (In a Box of 20)
Units
500mA 1 - 65 V dc, 250 V ac 8.2mm TCP 0.5A - - - - - - - -
RS Stock No. 610-0904
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD14
THB1,402.24
Each
Units
8A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 1.5 (ac) kA - - - - -
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