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 41 - 60 รายการจาก 2066 รายการ / Viewing 41 - 60 of 2066 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. 868-9137
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.4430.1328
Brand :Schurter
THB774.35
Each
Units
15A 2 - 60 V dc, 240 V ac - T45-2R Industrial Appliances, Power Supplies, Power Tools - 1 kA MCB - - - -
RS Stock No. 610-0904
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD14
THB904.59
Each
Units
8A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 1.5 (ac) kA - - - - -
RS Stock No. 801-6918
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712275
THB559.68
Each
Units
6A 1 - 65 V dc, 250 V ac 8.2mm TCP 6A - - - - - - - -
RS Stock No. 312-3673
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CB10
THB647.08
Each
Units
5A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 2 (ac) kA - - - - -
RS Stock No. 170-3789
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712291
THB510.71
Each (In a Box of 20)
Units
8A 1 - 65 V dc, 250 V ac 8.2mm TCP 8A - - - - - - - -
RS Stock No. 170-3785
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712152
THB510.71
Each (In a Box of 20)
Units
500mA 1 - 65 V dc, 250 V ac 8.2mm TCP 0.5A - - - - - - - -
RS Stock No. 729-2758
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2-5700-IG2-P10-DD-000040-10A
Brand :ETA
THB858.22
Each
Units
10A 1 - - - 2 5700 - - - - - - - -
RS Stock No. 899-3339
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2CU5R
Brand :Altech
THB801.36
Each
Units
5A 2 - 480Y/277V - R Appliance Circuit, Appliances, Business Equipment, Control Circuit Application, Lighting, Power Supplies, Sensitive Electronics, UL1077 Application, Wiring Protection Time Delay 10 kA MCCB - - - -
RS Stock No. 405-9141
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2-5700-IG1-P10-DD-000040-10A
Brand :ETA
THB586.90
Each
Units
10A 1 - - 29mm 2-5700 - - - - - - - -
RS Stock No. 782-0876
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W23-X1A1G-30
THB612.57
Each
Units
30A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS Stock No. 170-9405
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W28-XQ1A-10
THB63.594
Each (In a Bag of 100)
Units
10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS Stock No. 323-9037
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD10
THB939.44
Each
Units
5A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 2 (ac) kA - - - - -
RS Stock No. 729-2830
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-SI-0.5A
Brand :ETA
THB2,063.84
Each
Units
500mA 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 729-2849
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-Si-4A
Brand :ETA
THB2,064.72
Each
Units
4A 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 782-0867
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W57-XB7A4A10-10
THB52.47
Each
Units
10A 1 - 250V ac 0.575in W57 - - - - - - - -
RS Stock No. 167-5677
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W28-XQ1A-10
THB89.81
Each
Units
10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS Stock No. 782-7925
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W68-X2Q12-5
THB1,472.99
Each
Units
5A 2 - 277V ac 1.5in W68 - - - - - - - -
RS Stock No. 899-4580
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3C20UM
Brand :Altech
THB1,835.82
Each
Units
20A 3 - 480Y/277V - V-EA AC Discharge Lamps (Ballast), AC General Use, AC Incandescent Lamps (Tungsten), AC Motor Starting, AC Resistance, Across the Line, Appliances, Business Equipment, Control Circuit Applications, Lighting, Low Inrush Motors, UL508 Application, Wiring Protection Time Delay 10 kA MCCB - - - -
RS Stock No. 729-2754
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2-5700-IG2-P10-DD-000040-6A
Brand :ETA
THB763.62
Each
Units
6A 1 - - - 2 5700 - - - - - - - -
RS Stock No. 282-6545
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2210-T210-K0M1-H121-5A
Brand :ETA
THB1,194.18
Each
Units
5A 1 - - 83.5mm 2210 - - - - - - - -
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