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

52692 Products showing for Fuses & Circuit Breakers

Sort by
1 of 999+
Stocked by manufacturer
RS Better World
Siemens, SENTRON, 3VA1 Molded Case Circuit Breaker 3-Pole 40A, Breaking Capacity 25 kA
  • RS stock no. 209-6811
  • Mfr. Part No. 3VA1140-3ED32-0AA0
Subtotal (1 unit)
R 4 421,75(exc. VAT)
R 4 421,75/unit
In Stock
Hager CDA Series RCD Switch, 40A, 2-Pole, 30 mA, Type A, 6 kA 230V ac
  • RS stock no. 251-2024
  • Mfr. Part No. CDA743F
Subtotal (1 unit)
R 2 753,47(exc. VAT)
R 2 753,47/unit
In Stock
TE Connectivity W58 Thermal Circuit Breaker -, 30A Current Rating 1-Pole, Direct
  • RS stock no. 782-8016
  • Mfr. Part No. W54-XB1A4A10-30
Subtotal (1 unit)
R 115,21(exc. VAT)
R 115,21/unit
In Stock
Eaton 16A British Standard Fuse LCT 240V ac, 38 mm
  • RS stock no. 156-8771
  • Mfr. Part No. 16LCT
Subtotal (1 pack of 5 units)
R 774,93(exc. VAT)
R 154,986/unit
In Stock
Eaton 160A British Standard Fuse A4 660V ac, 93.7 mm
  • RS stock no. 415-266
  • Mfr. Part No. TCP100M160
Subtotal (1 unit)
R 1 231,95(exc. VAT)
R 1 231,95/unit
Temporarily out of stock
Eaton 125A British Standard Fuse A4 660V ac, 93.7 mm
  • RS stock no. 415-250
  • Mfr. Part No. TCP100M125
Subtotal (1 unit)
R 1 200,90(exc. VAT)
R 1 200,90/unit
In Stock
RS PRO Earthing Kit
  • RS stock no. 528-983
Subtotal (1 unit)
R 507,08(exc. VAT)
R 507,08/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 6A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS stock no. 791-3152
  • Mfr. Part No. A9F53106
Subtotal (1 unit)
R 720,24(exc. VAT)
R 720,24/unit
In Stock
Schurter T12 T12 Thermal Circuit Breaker -, 2A Current Rating 1-Pole, Panel
  • RS stock no. 284-6072
  • Mfr. Part No. 4410.0126
Subtotal (1 unit)
R 694,24(exc. VAT)
R 694,24/unit
In Stock
Bourns Surface Mount Fuse 7A, 48V dc
  • RS stock no. 245-9232
  • Mfr. Part No. SF-1206F700M-2
Subtotal (1 tape of 10 units)
R 113,80(exc. VAT)
R 11,38/unit
Stocked by manufacturer
Hager NFT Miniature Circuit Breaker, 3-Pole, 10A, 415V ac AC, 10 kA Breaking Capacity
  • RS stock no. 144-4730
  • Mfr. Part No. NFT310
Subtotal (1 unit)
R 2 764,26(exc. VAT)
R 2 764,26/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 4-Pole, 40A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS stock no. 734-9188
  • Mfr. Part No. A9F77440
Subtotal (1 unit)
R 1 135,00(exc. VAT)
R 1 135,00/unit
In Stock
Eaton xEffect FAZ Miniature Circuit Breaker, 1-Pole, 6A, Type D, 240V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 922-7033
  • Mfr. Part No. 278578 FAZ-D6/1
Subtotal (1 unit)
R 645,42(exc. VAT)
R 645,42/unit
In Stock
Eaton 63A British Standard Fuse 76 mm x 20 mm x 20 mm 690V ac, 63.5 mm
  • RS stock no. 182-1706
  • Mfr. Part No. 63ET
Subtotal (1 unit)
R 470,29(exc. VAT)
R 470,29/unit
Temporarily out of stock
Eaton 10A AM Ceramic Cartridge Fuse, 14 x 51 mm
  • RS stock no. 181-8546
  • Mfr. Part No. C14M10
Subtotal (1 box of 10 units)
R 405,08(exc. VAT)
R 40,508/unit
In Stock
ETA 6 to 30 A 1610 Thermal Circuit Breaker -, 25A Current Rating 1-Pole, Base
  • RS stock no. 409-918
  • Mfr. Part No. 1610-21-25A
Subtotal (1 unit)
R 206,44(exc. VAT)
R 206,44/unit
In Stock
Wickmann 10 A Resettable Fuse, 16V dc
  • RS stock no. 174-0846
  • Mfr. Part No. RF3259-000
Subtotal (1 pack of 10 units)
R 178,44(exc. VAT)
R 17,844/unit
In Stock
TE Connectivity 0.25 to 20 A W28 Thermal Circuit Breaker -, 1A Current Rating 1-Pole, Direct
  • RS stock no. 782-0905
  • Mfr. Part No. W28-XQ1A-1
Subtotal (1 unit)
R 225,14(exc. VAT)
R 225,14/unit
In Stock
SIBA 10A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS stock no. 768-6109
  • Mfr. Part No. 5022526.10
Subtotal (1 unit)
R 329,25(exc. VAT)
R 329,25/unit
In Stock
ETA 6 to 30 A 1610 Thermal Circuit Breaker -, 15A Current Rating 1-Pole, Base
  • RS stock no. 409-895
  • Mfr. Part No. 1610-21-15A
Subtotal (1 unit)
R 206,74(exc. VAT)
R 206,74/unit
1
2
3
2635
Results per page

Related links