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 881 - 900 รายการจาก 1619 รายการ / Viewing 881 - 900 of 1619 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. 881-1356
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FA1-B0-14-815-12A-BG
THB3,834.97
Each
Units
150A 1 - - - F Battery Disconnect Systems, Higher Amperage Applications, Ideal for Applications Under Extreme Temperatures, Military, Solar Power Systems Short 10000 A @ 277 V ac, 50000 A @ 125 V dc MCCB - 38.3mm 38.29 x 59.13mm 59.1mm
RS Stock No. 899-4644
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3C40UL
Brand :Altech
THB2,855.71
Each
Units
40A 3 - 240V ac - UL Lighting and Control Circuit Applications, Low Inrush Motors, Receptacles, Resistive Load, UL489 Application, Wiring Protection Time Delay 10 kA MCCB - - - -
RS Stock No. 899-3290
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2CU30R
Brand :Altech
THB963.66
Each
Units
30A 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. 881-4759
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AF2-B0-24-610-112-D
THB4,513.89
Each
Units
10A 2 - - - A Generators, Marine Applications, Military, Renewable Energy Systems, Telecommunications, Welder Medium 5000 A @ 80 V dc - - - - -
RS Stock No. 881-4810
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AM2-B0-34-610-201-C
THB5,106.29
Each: (In a Pack of 2)
Units
10A 2 - - - A Generators, Marine Applications, Military, Renewable Energy Systems, Telecommunications, Welder Medium 5000 A @ 80 V dc - 13.1mm - 13.09 (Dia.)mm -
RS Stock No. 898-1617
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1DU10L
Brand :Altech
THB792.53
Each
Units
10A 1 - 240V ac - L Heaters and Reactive Loads, High Inrush Motors, Power Supplies, Transformer, UL489 Applications Time Delay 10 kA MCCB - - - -
RS Stock No. 782-0889
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.W23-X1A1G-3
THB1,416.20
Each
Units
3A 1 - 50 V dc, 250 V ac 0.69in W23 - - - - - - - -
RS Stock No. 879-8639
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AA1-B0-34-615-3B1-C
THB554.27
Each
Units
15A 1 - - - A Generators, Marine Applications, Military, Renewable Energy Systems, Telecommunications, Welder Medium 5000 A @ 80 V dc - 16mm - - -
RS Stock No. 868-8844
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.4404.0023
Brand :Schurter
THB69.672
Each: (In a Pack of 100)
Units
12A 1 - - - T9-311 Household Appliances, HVAC, Industrial Appliances, Medical, Power Supplies, Power Tools, Uninterruptible Power Supply - 2 kA MCB 9.6mm 8.9mm 8.9 x 9.6 (Dia.)mm -
RS Stock No. 881-4951
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MA1-B-34-450-1-A12-B-C
THB506.78
Each
Units
5A 1 - - - M Automotive, Communication Equipment, Generators, Marine Applications, Medical Equipment, Power Supplies Medium 600 A @ 80 V dc MCB - 18mm 18.03 x 37.08mm 37.1mm
RS Stock No. 284-5906
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.4400.0017
Brand :Schurter
THB305.17
Each
Units
16A 1 - 240V ac - T11 - - - - - - - -
RS Stock No. 175-1595
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.GV4PEM80S6
THB21,699.63
Each
Units
80A 3 TeSys 690V ac 116mm GV4PEM - - 10 kA @ 660 → 690 V ac - - - - -
RS Stock No. 881-1094
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CLB-303-11A3N-B-A
THB154.12
Each
Units
30A 1 - - - CLB Audio Visual Equipment, Household Appliances, Marine Applications, Medical Equipment, Power Strips, Power Supplies, Transportation Time Delayed 2500 A @ 32 V dc - - 10mm 10 x 11.2mm 11.2mm
RS Stock No. 899-1610
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.2DU15L
Brand :Altech
THB1,631.84
Each
Units
15A 2 - - - L Heaters and Reactive Loads, High Inrush Motors, Power Supplies, Transformer, UL489 Applications Time Delay 10 kA MCCB - - - -
RS Stock No. 881-0830
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CA1-B0-34-630-121-C
THB647.77
Each
Units
30A 1 - - - C General Purpose Medium 10000 A @ 277 V ac, 5000 A @ 125/250 V dc MCCB - 19.3mm 19.3 x 52.37mm 52.4mm
RS Stock No. 881-8196
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1688418
THB154.163
Each (In a Box of 10)
Units
- - - - - VS-09-ST-DSUB-2P - - - - - - - -
RS Stock No. 881-0836
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CA1-B0-34-620-121-C
THB717.37
Each
Units
20A 1 - - - C General Purpose Medium 10000 A @ 277 V ac, 5000 A @ 125/250 V dc MCCB - 19.3mm 19.3 x 52.37mm 52.4mm
RS Stock No. 175-0363
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.REX12-TA1-107-DC24V-1A
Brand :ETA
THB1,272.79
Each
Units
1A - - 24V dc 98.5mm REX12-T - - - - - - - -
RS Stock No. 899-9096
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3GU03
Brand :Altech
THB3,084.64
Each
Units
300mA 3 - 480Y/277V - V-EA - Time Delay 10 kA MCCB - - - -
RS Stock No. 150-085
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.1610-21-30A
Brand :ETA
THB420.72
Each
Units
30A 1 - 32V dc 20mm 1610 - - - - - - - -
Related Products
Extremely compactVoltage rating of 32VdcImproved overcurrent protectionMay be ...
Description:
Extremely compactVoltage rating of 32VdcImproved overcurrent protectionMay be resetTypical tripping time2IN: 10 secondsUse with fuseholder RS stock no.419195Typical life: 12 to 17 Vd.c. 30 ops; 24 Vd.c. 10 opsIEC Class M/TOTemp. range: -30°C → +60°C.
The compact TCP range of miniature thermal circuit ...
Description:
The compact TCP range of miniature thermal circuit breakers from Phoenix contacts have an integrated switching function which enables instant re-closure to ensure the availability of the system. • IP40 rating• Slow blow fuse• Only 8.2mm wide• Re-closable• Available with ...
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 heat-activated T13 series circuit breakers for protection against overcurrents.Models with reset and manual trigger by separate lever.Snap fitting.Designed essentially for protecting single-phase motors, ...
The compact and flexible all-in-one solution REX consists ...
Description:
The compact and flexible all-in-one solution REX consists of several perfectly matched components. It comprises the EM12-T supply module for the plus and minus potential via a single or double channel REX12-T electronic circuit protector which can be mounted side ...