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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Description 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. 272-892
Mfr. Part No.GV3P18
£112.00
Each
Units
- 3 TeSys 690V ac 55mm GV3 - - 6 kA - - - - -
RS Stock No. 782-7969
Mfr. Part No.W54-XB1A4A10-10
£2.78
Each
Units
10A 1 - 250V ac 0.575in W54 - - - - - - - -
RS Stock No. 712-7632
Mfr. Part No.3120-F551-H7T1-W14DR4-1A
BrandETA
£15.40
Each
Units
1A 2 - - 25mm 3120 - - - - - - - -
RS Stock No. 282-8743
Mfr. Part No.2210-T210-K0M1-H121-1A
BrandETA
£30.26
Each
Units
1A 1 - - 83.5mm 2210 - - - - - - - -
RS Stock No. 782-0915
Mfr. Part No.W58-XB1A4A-5
£4.19
Each
Units
5A 1 - 50 V dc, 250 V ac 0.66in W58 - - - - - - - -
RS Stock No. 312-3768
Mfr. Part No.GB2DB05
£40.00
Each
Units
500mA 2 - 277 V ac, 415 V ac 30mm GB2 - - 1 (dc) kA, 50 (ac) kA - - - - -
RS Stock No. 830-3060
Mfr. Part No.GV3P32
£142.00
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 782-6565
Mfr. Part No.W28-XT1A-15
£3.02
Each
Units
15A 1 - 32 V dc, 250 V ac 0.76in W28 - - - - - - - -
RS Stock No. 312-3718
Mfr. Part No.GB2CB16
£17.55
Each
Units
10A 1 - 277 V ac, 415 V ac 15mm GB2 - - 1.5 kA - - - - -
RS Stock No. 729-2821
Mfr. Part No.3140-F230-P7T1-SGRX-16A
BrandETA
£46.73
Each
Units
16A 3 - - - 3140 - - - - - - - -
RS Stock No. 282-8721
Mfr. Part No.2210-T210-K0M1-H121-0.5A
BrandETA
£18.63
Each
Units
500mA 1 - - 83.5mm 2210 - - - - - - - -
RS Stock No. 782-7922
Mfr. Part No.W57-XB1A7A10-15
£2.93
Each
Units
15A 1 - 250V ac 0.575in W57 - - - - - - - -
RS Stock No. 729-2764
Mfr. Part No.2-5700-IG2-P10-DD-000040-16A
BrandETA
£18.01
Each
Units
16A 1 - - - 2 5700 - - - - - - - -
RS Stock No. 728-8651
Mfr. Part No.106-P10-000040-8A
BrandETA
£12.06
Each
Units
8A 1 - - - 106 - - - - - - - -
RS Stock No. 801-6892
Mfr. Part No.0712194
£14.48
Each
Units
1A 1 - 65 V dc, 250 V ac 8.2mm TCP 1A - - - - - - - -
RS Stock No. 881-1075
Mfr. Part No.CLB-103-11A3N-B-A
£2.261
Each (In a Pack of 10)
Units
10A 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. 170-3783
Mfr. Part No.0712194
£13.167
Each (In a Box of 20)
Units
1A 1 - 65 V dc, 250 V ac 8.2mm TCP1A - - - - - - - -
RS Stock No. 868-8914
Mfr. Part No.4411.0011
BrandSchurter
£12.16
Each
Units
10A 1 - 28 V dc, 240 V ac - T13 - - - - - - - -
RS Stock No. 409-895
Mfr. Part No.1610-21-15A
BrandETA
£9.19
Each
Units
15A 1 - 32V dc 20mm 1610 - - - - - - - -
RS Stock No. 416-950
Mfr. Part No.1110-F112-P1M1-1A
BrandETA
£14.48
Each
Units
1A 1 - - 19mm 1110 - - - - - - - -
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