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 1478 รายการ / Viewing 41 - 60 of 1478 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. 801-6911
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.0712291
THB567.64
Each
Units
8A 1 - 65 V dc, 250 V ac 8.2mm TCP 8A - - - - - - - -
RS Stock No. 409-902
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1610-21-20A
Brand :ETA
THB229.68
Each
Units
20A 1 - 32V dc 20mm 1610 - - - - - - - -
RS Stock No. 312-3673
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CB10
THB803.44
Each
Units
5A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 2 (ac) kA - - - - -
RS Stock No. 323-9009
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD07
THB2,405.64
Each
Units
2A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 15 (ac) kA - - - - -
RS Stock No. 729-2849
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-Si-4A
Brand :ETA
THB2,467.99
Each
Units
4A 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 729-2830
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3600-P10-SI-0.5A
Brand :ETA
THB2,441.89
Each
Units
500mA 1 - - 11.5mm 3600 - - - - - - - -
RS Stock No. 782-0867
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W57-XB7A4A10-10
THB101.92
Each
Units
10A 1 - 250V ac 0.575in W57 - - - - - - - -
RS Stock No. 405-9141
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2-5700-IG1-P10-DD-000040-10A
Brand :ETA
THB645.93
Each
Units
10A 1 - - 29mm 2-5700 - - - - - - - -
RS Stock No. 899-3339
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2CU5R
Brand :Altech
THB932.08
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. 323-9037
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CD10
THB1,923.45
Each
Units
5A 1P + N - 250V ac 15mm GB2 - - 1 (dc) kA, 2 (ac) kA - - - - -
RS Stock No. 167-5677
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W28-XQ1A-10
THB140.94
Each
Units
10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
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. 170-9405
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W28-XQ1A-10
THB85.609
Each (In a Bag of 100)
Units
10A 1 - 32 V dc, 250 V ac - W28 - - 1000 A - - - - -
RS Stock No. 782-0876
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W23-X1A1G-30
THB923.06
Each
Units
30A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS Stock No. 312-3623
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GB2CB05
THB803.44
Each
Units
500mA 1 - 277 V ac, 415 V ac 15mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS Stock No. 782-7887
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W67-X2Q12-30
THB755.34
Each
Units
30A 1 - 277V ac 0.75in W67 - - - - - - - -
RS Stock No. 782-7925
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W68-X2Q12-5
THB2,120.49
Each
Units
5A 2 - 277V ac 1.5in W68 - - - - - - - -
RS Stock No. 782-6565
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W28-XT1A-15
THB109.69
Each
Units
15A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS Stock No. 409-851
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1410-F110-P1F1-W14QB4-8A
Brand :ETA
THB626.63
Each
Units
8A 1 - - 17mm 1410-F - - - - - - - -
RS Stock No. 458-8683
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1180-01-2A
Brand :ETA
THB722.49
Each
Units
2A 1 - - 24.4mm 1180 - - - - - - - -
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