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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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. 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
THB7,976.36
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. 333-237
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.201-1A
Brand :ETA
THB1,019.86
Each
Units
1A 1 - - 80mm 201 - - - - - - - -
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. 323-8999
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD06
THB1,422.58
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. 729-2843
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-Si-6A
Brand :ETA
THB2,298.54
Each
Units
6A 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 272-921
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3P40
THB7,312.84
Each
Units
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
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 - - - - - - - -
RS Stock No. 212-1957
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3130-F120-P7T1-W02Q-5A
Brand :ETA
THB887.26
Each
Units
5A 2 - - 36mm 3130 - - - - - - - -
RS Stock No. 333-243
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.201-2A
Brand :ETA
THB1,051.63
Each
Units
2A 1 - - 80mm 201 - - - - - - - -
RS Stock No. 729-2786
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3120-F554-P7T1-W02D-20A
Brand :ETA
THB839.28
Each
Units
20A 2 - - - 3120-F - - - - - - - -
RS Stock No. 272-836
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV3L40
THB5,582.08
Each
Units
- 3 TeSys 690V ac 55mm GV3 - - 5 kA - - - - -
RS Stock No. 170-3786
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712217
THB511.03
Each (In a Box of 20)
Units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
RS Stock No. 170-3787
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712259
THB511.03
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
THB559.68
Each
Units
2A 1 - 65 V dc, 250 V ac 8.2mm TCP 2A - - - - - - - -
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