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.

47290 Products showing for Fuses & Circuit Breakers

3 of 999+
  • RS Stock No. 267-3515
  • Mfr. Part No. 70-010-05/4A
Each (In a Pack of 5)
HK$46.56(exc. GST)
  • RS Stock No. 156-8850
  • Mfr. Part No. 100LET
Each
HK$565.00(exc. GST)
  • RS Stock No. 180-6112
  • Mfr. Part No. 0 130 16
Each (In a Box of 10)
HK$20.87(exc. GST)
  • RS Stock No. 738-2794
  • Mfr. Part No. 021801.6MXP
Each (In a Pack of 10)
HK$3.84(exc. GST)
  • RS Stock No. 247-2785
  • Mfr. Part No. H213102
1 Box of 10
HK$324.90(exc. GST)
  • RS Stock No. 177-5063
  • Mfr. Part No. 2CSF202199R1250 F202 A-25/0,03 110V
Each
HK$1,503.10(exc. GST)
  • RS Stock No. 415-109
  • Mfr. Part No. NIT2
Each (In a Pack of 5)
HK$64.04(exc. GST)
  • RS Stock No. 247-2967
  • Mfr. Part No. Z201295
1 Box of 10
HK$130.50(exc. GST)
  • RS Stock No. 254-4124
  • Mfr. Part No. PF-FB1-300
Each
HK$1,196.80(exc. GST)
Better World
  • RS Stock No. 776-3216
  • Mfr. Part No. A9N61534
Each
HK$1,401.20(exc. GST)
  • RS Stock No. 267-3565
  • Mfr. Part No. 70-010-05/1A
Each (In a Pack of 5)
HK$92.56(exc. GST)
  • RS Stock No. 703-2666
  • Mfr. Part No. 8020.0603.G
Each (In a Pack of 10)
HK$9.38(exc. GST)
Better World
  • RS Stock No. 231-9779
  • Mfr. Part No. 2CDS274001R0634 S204M C 63A - 15 KA
1 Box of 1
HK$1,542.40(exc. GST)
  • RS Stock No. 361-8187
  • Mfr. Part No. 171530.2
Each (In a Pack of 10)
HK$17.18(exc. GST)
  • RS Stock No. 221-3691
Each (In a Pack of 10)
HK$27.31(exc. GST)
  • RS Stock No. 270-5240
  • Mfr. Part No. P04351
1 Box of 5
HK$313.50(exc. GST)
Better World
  • RS Stock No. 211-2679
  • Mfr. Part No. TRV00917
Each
HK$4,780.30(exc. GST)
  • RS Stock No. 738-2882P
  • Mfr. Part No. 0154.750DRT
Each (Supplied on a Reel)
HK$21.44(exc. GST)
  • RS Stock No. 738-2898P
  • Mfr. Part No. 0154.375DRT
Each (Supplied on a Reel)
HK$24.59(exc. GST)
Better World
  • RS Stock No. 772-1252
  • Mfr. Part No. 5SY4110-8
Each
HK$563.90(exc. GST)
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