Fuses & Circuit Breakers

Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

Fuses

Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

Circuit breakers

Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

Circuit Breakers
Circuit Breakers
Earth & Lightning Protection
Earth & Lightning Protection
Fuse Holders & Accessories
Fuse Holders & Accessories
Fuses
Fuses
Fuses - PCB
Fuses - PCB

50197 Products showing for Fuses & Circuit Breakers

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1 / 999+
In Stock
Littelfuse Non-Resettable Fuse, Radial 50mA, 125 V ac, 125V dc
  • RS Stock No. 878-3233
  • Mfr. Part No. 0273.050H
Subtotal (1 unit)
MYR41.59
MYR41.59/unit
Temporarily out of stock
Littelfuse Non-Resettable Fuse, Radial 500mA, 125 V ac, 125V dc
  • RS Stock No. 878-3251
  • Mfr. Part No. 0273.500H
Subtotal (1 unit)
MYR42.79
MYR42.79/unit
In Stock
RS Better World
ABB ComPact Home SH200 Miniature Circuit Breaker, 1-Pole, 6A, Type C, 440V ac AC, 60 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 539-8201
  • Mfr. Part No. 2CDS211001R0064 SH201-C6
Subtotal (1 unit)
MYR92.35
MYR92.35/unit
In Stock
Eaton 5A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-576
  • Mfr. Part No. TDC180-5A
Subtotal (1 pack of 10 units)
MYR43.14
MYR4.314/unit
In Stock
RS Better World
Schneider Electric A9W Series Residual Current Device, 25A, 2-Pole, 30 mA, Type A, 1500 A 240V ac
  • RS Stock No. 212-178
  • Mfr. Part No. A9W21225
Subtotal (1 unit)
MYR733.73
MYR733.73/unit
In Stock
Eaton 6A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8374
  • Mfr. Part No. C10G6
Subtotal (1 pack of 10 units)
MYR81.28
MYR8.128/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 2-Pole, 10A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS Stock No. 734-9068
  • Mfr. Part No. A9F77210
Subtotal (1 unit)
MYR610.66
MYR610.66/unit
Stocked by manufacturer
Eaton 400A Tag Fuse NH03 500V
  • RS Stock No. 261-576
  • Mfr. Part No. 400NHG03BI NH FUSE 400A 500V GL/GG SIZE 03
Subtotal (1 pack of 3 units)
MYR277.78
MYR277.78/pack
Limited stock
Eaton 11A F Melamine Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 459-7924
  • Mfr. Part No. DMM-B-11A
Subtotal (1 pack of 5 units)
MYR1,219.72
MYR243.944/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20A Current Rating, 1-Pole, Type AB, Easy9
  • RS Stock No. 850-8656
  • Mfr. Part No. EZ9D16820
Subtotal (1 unit)
MYR170.77
MYR170.77/unit
In Stock
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX100N Molded Case Circuit Breaker 3-Pole 100A, Breaking Capacity 50 kA
  • RS Stock No. 254-6300
  • Mfr. Part No. C10N3TM100
Subtotal (1 unit)
MYR4,178.92
MYR4,178.92/unit
In Stock
Eaton 10A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-598
  • Mfr. Part No. TDC180-10A
Subtotal (1 pack of 10 units)
MYR44.23
MYR4.423/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 4-Pole, 32A, Type C, 14 kA Breaking Capacity
  • RS Stock No. 219-9140
  • Mfr. Part No. M9F22432
Subtotal (1 unit)
MYR1,021.18
MYR1,021.18/unit
In Stock
Schneider Electric R9R Series Residual Current Circuit Breaker, 25A, 2-Pole, 10 mA, Type A, 500 A 230V ac
  • RS Stock No. 212-340
  • Mfr. Part No. R9R26225
Subtotal (1 unit)
MYR734.92
MYR734.92/unit
In Stock
Eaton 500A Centred Tag Fuse NH3 500V ac
  • RS Stock No. 703-8765
  • Mfr. Part No. 500NHG3B
Subtotal (1 unit)
MYR158.23
MYR158.23/unit
In Stock
ETA Thermal Magnetic Circuit Breakers 3600 Thermal Circuit Breaker -, 1A Current Rating 1-Pole, Panel
  • RS Stock No. 729-2833
  • Mfr. Part No. 3600-P10-Si-1A
Subtotal (1 unit)
MYR464.95
MYR464.95/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 6A, Type C, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 219-9117
  • Mfr. Part No. M9F22106
Subtotal (1 unit)
MYR269.85
MYR269.85/unit
In Stock
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX160F Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 36 kA, Fixed
  • RS Stock No. 254-6342
  • Mfr. Part No. C16F3
Subtotal (1 unit)
MYR2,667.40
MYR2,667.40/unit
In Stock
RS Better World
Schneider Electric Acti9 Acti9 C120 Miniature Circuit Breaker, 2-Pole, 125A, Type C, 250 V dc DC, 15000 A Breaking
  • RS Stock No. 219-8297
  • Mfr. Part No. A9N18459
Subtotal (1 unit)
MYR1,595.70
MYR1,595.70/unit
In Stock
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX160F Molded Case Circuit Breaker 3-Pole 125A, Breaking Capacity 36 kA, Fixed
  • RS Stock No. 254-6344
  • Mfr. Part No. C16F3TM125
Subtotal (1 unit)
MYR4,709.48
MYR4,709.48/unit
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