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.

34912 Products showing for Fuses & Circuit Breakers

49 of 999+
  • RS Stock No. 328-426
  • Mfr. Part No. 5SM2842-8
Each
$542.15(exc. VAT)
  • RS Stock No. 281-6012
  • Mfr. Part No. FB50864Q1
Each (In a Pack of 2)
$152.25(exc. VAT)
  • RS Stock No. 541-4410
  • Mfr. Part No. 0217002.MXP
Each (In a Pack of 10)
$0.70(exc. VAT)
  • RS Stock No. 611-9138
Each
$411.98(exc. VAT)
  • RS Stock No. 435-239
  • Mfr. Part No. 2CCG001220R0001
Each
$340.52(exc. VAT)
  • RS Stock No. 541-4678
  • Mfr. Part No. 0215001.MXP
Each (In a Pack of 10)
$2.884(exc. VAT)
  • RS Stock No. 435-235
  • Mfr. Part No. 2CCG001232R0001
Each
$340.52(exc. VAT)
  • RS Stock No. 646-810
  • Mfr. Part No. 568717
Each
$11.14(exc. VAT)
  • RS Stock No. 728-8642
  • Mfr. Part No. 106-P10-000040-6A
Each
$33.65(exc. VAT)
  • RS Stock No. 537-1341
  • Mfr. Part No. S506-2-R
Each (In a Pack of 10)
$0.512(exc. VAT)
Better World
  • RS Stock No. 131-955
  • Mfr. Part No. 2CDS272001R0324 S202M-C32
Each
$142.42(exc. VAT)
  • RS Stock No. 396-089
  • Mfr. Part No. 3NA3822-7
Each (In a Pack of 3)
$16.313(exc. VAT)
  • RS Stock No. 335-408
  • Mfr. Part No. SED40102
Each
$395.98(exc. VAT)
  • RS Stock No. 182-1631
  • Mfr. Part No. TBC63
Each
$101.05(exc. VAT)
  • RS Stock No. 563-627
Each (In a Pack of 10)
$0.893(exc. VAT)
  • RS Stock No. 541-4713
  • Mfr. Part No. 021506.3MXP
Each (In a Pack of 10)
$2.627(exc. VAT)
  • RS Stock No. 563-558
Each (In a Pack of 10)
$0.893(exc. VAT)
  • RS Stock No. 563-772
Each (In a Pack of 10)
$1.693(exc. VAT)
  • RS Stock No. 721-1581
Each (In a Pack of 10)
$2.366(exc. VAT)
  • RS Stock No. 183-3622
  • Mfr. Part No. 2CDS242701R0164
Each
$89.53(exc. VAT)
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