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

2 of 999+
Better World
  • RS Stock No. 211-0475
  • Mfr. Part No. KSA630ABG4
Each
HK$15,452.20(exc. GST)
  • RS Stock No. 221-601
  • Mfr. Part No. RS20P/G/WHI
Each
HK$488.20(exc. GST)
  • RS Stock No. 221-594
  • Mfr. Part No. RS20P/G/BLK
Each
HK$289.60(exc. GST)
  • RS Stock No. 177-8126
Each (In a Pack of 50)
HK$3.037(exc. GST)
  • RS Stock No. 413-850
Each (In a Pack of 10)
HK$29.20(exc. GST)
  • RS Stock No. 184-9030
  • Mfr. Part No. CPB1016B
Each
HK$44.90(exc. GST)
Better World
  • RS Stock No. 231-9729
  • Mfr. Part No. 2CDS272001R0467 S202M K 16A - 15 KA
1 Box of 1
HK$574.60(exc. GST)
Better World
  • RS Stock No. 791-3376
  • Mfr. Part No. A9F54304
Each
HK$943.70(exc. GST)
  • RS Stock No. 242-1049
Each (In a Pack of 5)
HK$25.24(exc. GST)
  • RS Stock No. 229-268
  • Mfr. Part No. C10G6 CYLINDRICAL FUSE 10 x 38 6A GG 500V AC
1 Pack of 10
HK$98.00(exc. GST)
  • RS Stock No. 174-0730
  • Mfr. Part No. 01550900M
Each (In a Pack of 5)
HK$14.46(exc. GST)
Better World
  • RS Stock No. 124-7723
  • Mfr. Part No. 5SV3344-6KK12
Each
HK$813.40(exc. GST)
  • RS Stock No. 849-6020
  • Mfr. Part No. GDA-400MA
Each (In a Pack of 5)
HK$51.12(exc. GST)
  • RS Stock No. 768-1195
  • Mfr. Part No. 2839363
Each
HK$880.80(exc. GST)
  • RS Stock No. 188-6546
  • Mfr. Part No. Z084018
Each (In a Pack of 10)
HK$29.50(exc. GST)
Better World
  • RS Stock No. 790-8866
  • Mfr. Part No. A9F44116
Each
HK$195.10(exc. GST)
Better World
  • RS Stock No. 622-0064
  • Mfr. Part No. 5SY4115-7
Each
HK$375.10(exc. GST)
Better World
  • RS Stock No. 776-3622
  • Mfr. Part No. A9N61652
Each
HK$2,388.70(exc. GST)
  • RS Stock No. 119-275
  • Mfr. Part No. KSA250ABDD4
Each
HK$27,963.43(exc. GST)
  • RS Stock No. 247-3977
Each (In a Pack of 10)
HK$9.59(exc. GST)
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