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

50690 Products showing for Fuses & Circuit Breakers

7 of 999+
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  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-15A
Each
R 575.43(exc. VAT)
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R 414.25(exc. VAT)
In Stock
  • RS stock no. 537-1307
  • Mfr. Part No. S506-6.3-R
Each (In a Pack of 10)
R 4.19(exc. VAT)
Temporarily out of stock
Better World
  • RS stock no. 776-3168
  • Mfr. Part No. A9N61504
Each
R 587.24(exc. VAT)
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  • Mfr. Part No. W54-XB1A4A10-30
Each
R 120.44(exc. VAT)
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  • RS stock no. 413-484
  • Mfr. Part No. NSD6
Each (In a Pack of 5)
R 186.596(exc. VAT)
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  • RS stock no. 101-748
Each
R 568.50(exc. VAT)
Temporarily out of stock
Better World
  • RS stock no. 211-6051
  • Mfr. Part No. 3VA2025-6KP36-0AA0
Each
R 23,615.50(exc. VAT)
In Stock
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  • RS stock no. 220-1209
  • Mfr. Part No. A9C70342
Each
R 12,936.00(exc. VAT)
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  • RS stock no. 847-3279
  • Mfr. Part No. 278872 FAZ-C15/3
Each
R 2,175.89(exc. VAT)
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  • RS stock no. 269-3861
  • Mfr. Part No. 7010.9962.63
Each
R 11.46(exc. VAT)
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  • RS stock no. 266-3069
  • Mfr. Part No. 0 102 63
1 Box of 10
R 313.54(exc. VAT)
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  • RS stock no. 563-396
Each (In a Pack of 10)
R 6.897(exc. VAT)
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  • RS stock no. 254-6281
  • Mfr. Part No. C10F3
Each
R 5,365.04(exc. VAT)
In Stock
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Each
R 1,443.99(exc. VAT)
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  • Mfr. Part No. 242401 PLSM-C10/2-MW
Each
R 1,566.45(exc. VAT)
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  • RS stock no. 911-3502
Each (In a Pack of 10)
R 6.968(exc. VAT)
In Stock
  • RS stock no. 769-4573
  • Mfr. Part No. 239148 FAZ6-C16/3
Each
R 2,212.78(exc. VAT)
Temporarily out of stock
Better World
  • RS stock no. 196-3581
  • Mfr. Part No. 3VA61701MS310AA0
Each
R 11,346.51(exc. VAT)
In Stock
  • RS stock no. 773-3555
  • Mfr. Part No. LPJ-40SP
Each
R 2,751.97(exc. VAT)
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