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

6 of 999+
  • RS Stock No. 202-7214
  • Mfr. Part No. 5ST3608
Each (In a Pack of 10)
SGD15.81(exc. GST)
  • RS Stock No. 864-4355
  • Mfr. Part No. 242399 PLSM-C6/2-MW
Each
SGD123.49(exc. GST)
Better World
  • RS Stock No. 212-8898
  • Mfr. Part No. 5SY6504-7
Each
SGD97.94(exc. GST)
  • RS Stock No. 219-6103
  • Mfr. Part No. 0154002.DR
Each (In a Pack of 10)
SGD1.548(exc. GST)
  • RS Stock No. 111-7811
  • Mfr. Part No. SWTC-421-3535
Each (In a Pack of 10)
SGD3.197(exc. GST)
  • RS Stock No. 250-4432
  • Mfr. Part No. 1SCA022697R7810
1 Box of 3
SGD106.47(exc. GST)
  • RS Stock No. 183-2863
  • Mfr. Part No. KV9354M
Each
SGD536.51(exc. GST)
  • RS Stock No. 820-7209
  • Mfr. Part No. KLKD030.T
Each
SGD25.23(exc. GST)
  • RS Stock No. 541-3079
  • Mfr. Part No. 021702.5MXP
Each (In a Pack of 10)
SGD0.454(exc. GST)
  • RS Stock No. 186-3471
  • Mfr. Part No. 2CSS245102R0104
Each
SGD18.61(exc. GST)
  • RS Stock No. 238-4861
  • Mfr. Part No. 0 058 24
Each
SGD33.25(exc. GST)
  • RS Stock No. 247-4223
  • Mfr. Part No. 50-124-06/25A
Each
SGD13.24(exc. GST)
  • RS Stock No. 263-437
  • Mfr. Part No. 315NHG1B NH FUSE 315A 440V GG/GL SIZE 1
1 Pack of 3
SGD48.00(exc. GST)
  • RS Stock No. 501-871
Each
SGD23.30(exc. GST)
  • RS Stock No. 228-675
  • Mfr. Part No. C14M2 CYLINDRICAL FUSE 14 x 51 2A AM 690V AC
1 Pack of 10
SGD38.75(exc. GST)
  • RS Stock No. 769-3713
  • Mfr. Part No. 0451002.NRL
Each (In a Pack of 10)
SGD1.198(exc. GST)
  • RS Stock No. 176-9621
  • Mfr. Part No. F204B-40/0.5
Each
SGD1,374.09(exc. GST)
Better World
  • RS Stock No. 213-1085
  • Mfr. Part No. 5SY6506-7
Each
SGD93.43(exc. GST)
  • RS Stock No. 725-8023
  • Mfr. Part No. 0213.500MXP
Each (In a Bag of 10)
SGD1.111(exc. GST)
  • RS Stock No. 225-5981
  • Mfr. Part No. 2CDL210001R1006 PS1/6
Each
SGD5.24(exc. GST)
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