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

12 of 999+
Better World
  • RS Stock No. 214-2097
  • Mfr. Part No. M9R11440
Each
SGD328.76(exc. GST)
  • RS Stock No. 201-409
  • Mfr. Part No. 2CDS252001R0428
Each
SGD132.30(exc. GST)
Better World
  • RS Stock No. 746-7567
  • Mfr. Part No. 2CDS252001R0105 S202-B10
Each
SGD69.94(exc. GST)
  • RS Stock No. 123-672
  • Mfr. Part No. 170833 FRBMM-C20/2/01-LIA
Each
SGD294.13(exc. GST)
  • RS Stock No. 371-8697
  • Mfr. Part No. F-22
Each (In a Pack of 5)
SGD1.922(exc. GST)
  • RS Stock No. 541-3732
  • Mfr. Part No. 0218.800MXP
Each (In a Pack of 10)
SGD1.039(exc. GST)
  • RS Stock No. 188-7460
  • Mfr. Part No. Q217180
Each (In a Pack of 10)
SGD11.002(exc. GST)
  • RS Stock No. 537-1470
  • Mfr. Part No. S506-630-R
Each (In a Pack of 10)
SGD4.584(exc. GST)
  • RS Stock No. 878-3249
  • Mfr. Part No. 0MID050.X
Each
SGD9.82(exc. GST)
  • RS Stock No. 541-3776
  • Mfr. Part No. 0215.630MXP
Each (In a Pack of 10)
SGD2.01(exc. GST)
  • RS Stock No. 826-2868
  • Mfr. Part No. 7113000
Each
SGD96.51(exc. GST)
  • RS Stock No. 537-1240
  • Mfr. Part No. S500-500-R
Each (In a Pack of 10)
SGD0.622(exc. GST)
  • RS Stock No. 893-8562
  • Mfr. Part No. 20-209-08/160A
Each (In a Pack of 3)
SGD35.74(exc. GST)
  • RS Stock No. 266-3090
  • Mfr. Part No. 0 124 08
1 Box of 10
SGD43.92(exc. GST)
  • RS Stock No. 270-3095
  • Mfr. Part No. P232497
Each
SGD16.15(exc. GST)
  • RS Stock No. 563-643
Each (In a Pack of 10)
SGD0.643(exc. GST)
Better World
  • RS Stock No. 772-1366
  • Mfr. Part No. 5SY4306-7
Each
SGD121.07(exc. GST)
  • RS Stock No. 124-5062
  • Mfr. Part No. A8-5AF
Each (In a Pack of 5)
SGD1.652(exc. GST)
  • RS Stock No. 782-0937
  • Mfr. Part No. W31-X2M1G-20
Each
SGD65.16(exc. GST)
  • RS Stock No. 261-420
  • Mfr. Part No. TKM315
Each
SGD147.78(exc. GST)
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