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

49110 Products showing for Fuses & Circuit Breakers

22 of 999+
  • RS Stock No. 257-7421
  • Mfr. Part No. 7P2482751020
Each
SGD267.05(exc. GST)
  • RS Stock No. 418-984
  • Mfr. Part No. OSD100
Each
SGD35.84(exc. GST)
  • RS Stock No. 188-4656
Each
SGD15.01(exc. GST)
Better World
  • RS Stock No. 178-7905
  • Mfr. Part No. LV426979
Each
SGD42.51(exc. GST)
  • RS Stock No. 228-664
  • Mfr. Part No. C10M2 CYLINDRICAL FUSE 10 x 38 2A AM 500V AC
1 Pack of 10
SGD17.54(exc. GST)
  • RS Stock No. 314-4793
  • Mfr. Part No. 50-179-06/6A
Each (In a Pack of 5)
SGD16.89(exc. GST)
  • RS Stock No. 124-2497
  • Mfr. Part No. 7TCA083670R0745 LK245-8
Each
SGD390.97(exc. GST)
  • RS Stock No. 230-0922
  • Mfr. Part No. 239155 FAZ6-B6/3N
Each
SGD88.84(exc. GST)
  • RS Stock No. 459-7918
  • Mfr. Part No. DMM-B-44-100-R
Each (In a Pack of 5)
SGD40.792(exc. GST)
  • RS Stock No. 267-3391
  • Mfr. Part No. 70-010-04/2A
Each (In a Pack of 5)
SGD9.094(exc. GST)
  • RS Stock No. 247-1647
  • Mfr. Part No. 18649
Each
SGD646.48(exc. GST)
Better World
  • RS Stock No. 746-7999
  • Mfr. Part No. 2CDS252001R0427 S202-K10
Each
SGD113.32(exc. GST)
  • RS Stock No. 250-8593
  • Mfr. Part No. LF302G
Each (In a Pack of 10)
SGD4.592(exc. GST)
Better World
  • RS Stock No. 232-0279
  • Mfr. Part No. 1SDA068220R1 XT3S 250 TMD 200A FF
Each
SGD919.62(exc. GST)
  • RS Stock No. 167-5699
  • Mfr. Part No. W28-XQ1A-15
Each
SGD10.24(exc. GST)
  • RS Stock No. 922-8715
  • Mfr. Part No. 236082 PKNM-10/1N/C/003-A-MW
Each
SGD208.62(exc. GST)
  • RS Stock No. 156-8844
  • Mfr. Part No. 80LET
Each
SGD26.08(exc. GST)
  • RS Stock No. 230-1076
  • Mfr. Part No. 264746 PLG4-C16/1N
Each
SGD20.41(exc. GST)
Better World
  • RS Stock No. 219-9151
  • Mfr. Part No. M9F42110
Each
SGD176.82(exc. GST)
Better World
  • RS Stock No. 236-7452
  • Mfr. Part No. 1SDA067714R1 XT2V 160 TMA 125A FF
Each
SGD1,716.00(exc. GST)
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