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

50687 Products showing for Fuses & Circuit Breakers

57 of 999+
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  • RS stock no. 489-4512
  • Mfr. Part No. C10M25
Each (In a Pack of 10)
R 32.569(exc. VAT)
Temporarily out of stock
Better World
  • RS stock no. 209-5211
  • Mfr. Part No. 3VA2340-5KP32-0AA0
Each
R 36,488.73(exc. VAT)
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  • RS stock no. 136-8584
  • Mfr. Part No. 1492-RCDA2A25
Each
R 2,408.69(exc. VAT)
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  • RS stock no. 232-0335
  • Mfr. Part No. 2CDL200001R5015 Ast 50/15
Each
R 169.38(exc. VAT)
Limited stock
  • RS stock no. 250-4748
  • Mfr. Part No. 2CDL231001R1009
Each
R 155.72(exc. VAT)
In Stock
  • RS stock no. 181-8513
  • Mfr. Part No. EFS200
Each
R 519.83(exc. VAT)
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  • RS stock no. 181-8845
  • Mfr. Part No. 200MJ31-7
Each
R 1,489.95(exc. VAT)
Temporarily out of stock
  • RS stock no. 247-1880
  • Mfr. Part No. 34015
Each
R 177,415.14(exc. VAT)
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  • RS stock no. 922-8695
  • Mfr. Part No. 236012 PKNM-6/1N/B/003-A-MW
Each
R 4,726.38(exc. VAT)
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  • RS stock no. 150-063
  • Mfr. Part No. X201.285.01 3/8"106CLEARCOVER+NUT
Each
R 83.52(exc. VAT)
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  • RS stock no. 914-4409
  • Mfr. Part No. ATMR10
Each
R 425.91(exc. VAT)
Temporarily out of stock
  • RS stock no. 209-7100
  • Mfr. Part No. 8US1941-2AA01
Each (In a Pack of 6)
R 424.763(exc. VAT)
Temporarily out of stock
Better World
  • RS stock no. 734-9652
  • Mfr. Part No. A9F75206
Each
R 1,041.69(exc. VAT)
In Stock
  • RS stock no. 219-6096
  • Mfr. Part No. 0154001.DR
Each (In a Pack of 10)
R 25.727(exc. VAT)
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  • RS stock no. 537-5630
  • Mfr. Part No. 259591 NZM2/3-XUHIV208-240AC
Each
R 4,146.47(exc. VAT)
In Stock
  • RS stock no. 448-3471
  • Mfr. Part No. C320369
Each
R 2,326.58(exc. VAT)
Temporarily out of stock
  • RS stock no. 232-0248
  • Mfr. Part No. 1SDA067396R1 XT1C 160 TMD 80A FF
Each
R 5,298.80(exc. VAT)
Temporarily out of stock
  • RS stock no. 134-8136
  • Mfr. Part No. POWERBUS-SETH5.250
Each
R 1,223.71(exc. VAT)
In Stock
  • RS stock no. 182-1687
  • Mfr. Part No. SMD6
Each
R 99.17(exc. VAT)
In Stock
  • RS stock no. 851-1665
  • Mfr. Part No. FNQ-R-10
Each
R 1,229.63(exc. VAT)
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